{"id":1406,"date":"2023-04-20T16:05:51","date_gmt":"2023-04-20T07:05:51","guid":{"rendered":"http:\/\/edu.ujhb.org\/?p=1406"},"modified":"2023-04-20T16:05:52","modified_gmt":"2023-04-20T07:05:52","slug":"mysql%e5%85%a5%e9%97%a8%ef%bc%88%e4%b8%ad%e6%96%87%e7%89%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/edu.ujhb.org\/?p=1406","title":{"rendered":"MySQL\u5165\u95e8\uff08\u4e2d\u6587\u7248\uff09"},"content":{"rendered":"\n<p>\u6211\u662f\u8981\u505aIT\u6559\u7a0b\u7684\u89c6\u9891\uff0c\u4f60\u80fd\u5426\u6839\u636e\u7f51\u7ad9\u7684\u5185\u5bb9\uff0c\u4e3a\u6211\u5b89\u6392\u89c6\u9891\u6559\u7a0b\u7684\u6587\u5b57\u5185\u5bb9\u3002\u6211\u4eec\u5148\u4eceMySql\u6559\u7a0b\u5f00\u59cb\uff0c\u4f60\u5148\u4e3a\u6211\u5217\u51fa\u8981\u8bb2\u89e3\u7684\u5185\u5bb9\u4e00\u89c8\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\u53ef\u4ee5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2aMySql\u6559\u7a0b\u89c6\u9891\u7684\u6982\u8981\u5efa\u8bae\u3002\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u548c\u77e5\u8bc6\u8fdb\u884c\u8c03\u6574\u548c\u8865\u5145\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f15\u8a00\n<ul class=\"wp-block-list\">\n<li>MySql\u7b80\u4ecb<\/li>\n\n\n\n<li>MySql\u7684\u5e94\u7528\u573a\u666f\u548c\u4f18\u52bf<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5b89\u88c5\u548c\u914d\u7f6eMySql\n<ul class=\"wp-block-list\">\n<li>\u4e0b\u8f7d\u548c\u5b89\u88c5MySql<\/li>\n\n\n\n<li>\u914d\u7f6eMySql\u73af\u5883\u53d8\u91cf<\/li>\n\n\n\n<li>\u542f\u52a8\u548c\u5173\u95edMySql\u670d\u52a1<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>MySql\u57fa\u672c\u6982\u5ff5\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93<\/li>\n\n\n\n<li>\u6570\u636e\u8868<\/li>\n\n\n\n<li>\u5217\uff08\u5b57\u6bb5\uff09<\/li>\n\n\n\n<li>\u884c\uff08\u8bb0\u5f55\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>MySql\u5ba2\u6237\u7aef\u5de5\u5177\n<ul class=\"wp-block-list\">\n<li>\u547d\u4ee4\u884c\u5ba2\u6237\u7aef<\/li>\n\n\n\n<li>\u56fe\u5f62\u5316\u5ba2\u6237\u7aef\uff08\u5982MySQL Workbench\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>SQL\u57fa\u7840\n<ul class=\"wp-block-list\">\n<li>SQL\u8bed\u8a00\u7b80\u4ecb<\/li>\n\n\n\n<li>SQL\u8bed\u53e5\u7c7b\u578b\uff08DDL\uff0cDML\uff0cDCL\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u521b\u5efa\u6570\u636e\u5e93\u548c\u8868\n<ul class=\"wp-block-list\">\n<li>CREATE DATABASE\u8bed\u53e5<\/li>\n\n\n\n<li>CREATE TABLE\u8bed\u53e5<\/li>\n\n\n\n<li>\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6570\u636e\u7684\u63d2\u5165\u3001\u67e5\u8be2\u3001\u66f4\u65b0\u548c\u5220\u9664\n<ul class=\"wp-block-list\">\n<li>INSERT\u8bed\u53e5<\/li>\n\n\n\n<li>SELECT\u8bed\u53e5<\/li>\n\n\n\n<li>UPDATE\u8bed\u53e5<\/li>\n\n\n\n<li>DELETE\u8bed\u53e5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u67e5\u8be2\u4f18\u5316\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u7d22\u5f15<\/li>\n\n\n\n<li>\u5206\u6790\u67e5\u8be2\u6027\u80fd\uff08EXPLAIN\u8bed\u53e5\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u805a\u5408\u51fd\u6570\u548c\u5206\u7ec4\n<ul class=\"wp-block-list\">\n<li>COUNT\uff0cSUM\uff0cAVG\uff0cMIN\uff0cMAX\u7b49\u805a\u5408\u51fd\u6570<\/li>\n\n\n\n<li>GROUP BY\u5b50\u53e5<\/li>\n\n\n\n<li>HAVING\u5b50\u53e5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u8fde\u63a5\u548c\u5b50\u67e5\u8be2\n<ul class=\"wp-block-list\">\n<li>INNER JOIN\uff0cLEFT JOIN\uff0cRIGHT JOIN\u7b49\u8fde\u63a5\u7c7b\u578b<\/li>\n\n\n\n<li>\u4f7f\u7528\u5b50\u67e5\u8be2<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u4e8b\u52a1\u5904\u7406\n<ul class=\"wp-block-list\">\n<li>\u4e8b\u52a1\u7684\u6982\u5ff5<\/li>\n\n\n\n<li>\u4e8b\u52a1\u7684ACID\u7279\u6027<\/li>\n\n\n\n<li>START TRANSACTION\uff0cCOMMIT\uff0cROLLBACK\u7b49\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7528\u6237\u7ba1\u7406\u548c\u6743\u9650\u63a7\u5236\n<ul class=\"wp-block-list\">\n<li>\u521b\u5efa\u548c\u5220\u9664\u7528\u6237\uff08CREATE USER\uff0cDROP USER\uff09<\/li>\n\n\n\n<li>\u7528\u6237\u6743\u9650\u7ba1\u7406\uff08GRANT\uff0cREVOKE\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5907\u4efd\u548c\u6062\u590d\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93\u5907\u4efd\uff08mysqldump\uff09<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u6062\u590d<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u603b\u7ed3\u548c\u5c55\u671b\n<ul class=\"wp-block-list\">\n<li>MySql\u6559\u7a0b\u56de\u987e<\/li>\n\n\n\n<li>\u5b66\u4e60\u8d44\u6e90\u63a8\u8350<\/li>\n\n\n\n<li>MySql\u7684\u53d1\u5c55\u8d8b\u52bf<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u53ea\u662f\u4e00\u4e2a\u57fa\u672c\u7684MySql\u6559\u7a0b\u5927\u7eb2\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u548c\u8865\u5145\u3002\u795d\u4f60\u7684IT\u6559\u7a0b\u5236\u4f5c\u987a\u5229\uff01<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caMySql\u7b80\u4ecb<\/p>\n\n\n\n<p>The previous model used in this conversation is unavailable. We&#8217;ve switched you to the latest default model<\/p>\n\n\n\n<p>MySQL\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf(RDBMS)\uff0c\u5b83\u4f7f\u7528SQL\uff08Structured Query Language\uff09\u4f5c\u4e3a\u4e0e\u6570\u636e\u4ea4\u4e92\u7684\u8bed\u8a00\u3002MySQL\u7684\u53d1\u5c55\u59cb\u4e8e1995\u5e74\uff0c\u7531\u745e\u5178\u7684Michael Widenius\u548cMonty Widenius\u521b\u5efa\u3002MySQL\u73b0\u5728\u662fOracle\u516c\u53f8\u7684\u4e00\u4e2a\u5b50\u516c\u53f8\uff0c\u4f46\u4ecd\u7136\u662f\u4e00\u79cd\u514d\u8d39\u7684\u5f00\u6e90\u8f6f\u4ef6\uff0c\u5e76\u4e14\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u7ef4\u62a4\u4e2d\u3002<\/p>\n\n\n\n<p>MySQL\u7684\u4e3b\u8981\u7279\u70b9\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f00\u6e90\u514d\u8d39\uff1aMySQL\u662f\u4e00\u4e2a\u5f00\u6e90\u8f6f\u4ef6\uff0c\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u514d\u8d39\u4f7f\u7528\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u9075\u5faa\u76f8\u5e94\u7684\u5f00\u6e90\u8bb8\u53ef\u8bc1\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u4fee\u6539\u548c\u53d1\u5e03\u3002<\/li>\n\n\n\n<li>\u53ef\u6269\u5c55\u6027\uff1aMySQL\u652f\u6301\u9ad8\u53ef\u6269\u5c55\u6027\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6269\u5c55\u5230\u591a\u4e2a\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u6570\u636e\u548c\u9ad8\u6d41\u91cf\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u5e73\u53f0\u517c\u5bb9\u6027\uff1aMySQL\u53ef\u4ee5\u8fd0\u884c\u5728\u591a\u79cd\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u5e73\u53f0\u4e0a\uff0c\u5305\u62ecWindows\u3001Linux\u3001Unix\u548cmacOS\u7b49\u3002<\/li>\n\n\n\n<li>\u5b89\u5168\u6027\uff1aMySQL\u63d0\u4f9b\u4e86\u8bb8\u591a\u5b89\u5168\u529f\u80fd\uff0c\u5982SSL\u52a0\u5bc6\u3001\u7528\u6237\u6743\u9650\u7ba1\u7406\u7b49\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4fdd\u5bc6\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n\n\n\n<li>\u6027\u80fd\uff1aMySQL\u662f\u4e00\u4e2a\u9ad8\u6548\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\uff0c\u5e76\u652f\u6301\u591a\u79cd\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u5982InnoDB\u3001MyISAM\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>MySQL\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8eWeb\u5e94\u7528\u7a0b\u5e8f\u3001\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u3001\u4f01\u4e1a\u5e94\u7528\u7a0b\u5e8f\u548c\u4e91\u8ba1\u7b97\u7b49\u573a\u666f\u4e2d\u3002\u8bb8\u591a\u5927\u578b\u7684\u4e92\u8054\u7f51\u516c\u53f8\uff0c\u5982Facebook\u3001Twitter\u3001Alibaba\u3001Tencent\u7b49\u90fd\u4f7f\u7528MySQL\u4f5c\u4e3a\u4ed6\u4eec\u7684\u4e3b\u8981\u6570\u636e\u5e93\u7cfb\u7edf\u3002\u7531\u4e8eMySQL\u5177\u6709\u826f\u597d\u7684\u53ef\u6269\u5c55\u6027\u3001\u9ad8\u6027\u80fd\u548c\u5f00\u6e90\u514d\u8d39\u7b49\u7279\u70b9\uff0c\u56e0\u6b64\u5728\u4eca\u5929\u7684\u4e92\u8054\u7f51\u65f6\u4ee3\uff0cMySQL\u4f9d\u7136\u662f\u4e00\u79cd\u975e\u5e38\u91cd\u8981\u548c\u6d41\u884c\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>1 \/ 2<\/p>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caMySql\u7684\u5e94\u7528\u573a\u666f\u548c\u4f18\u52bf<\/p>\n\n\n\n<p>MySQL\u5728\u4e0d\u540c\u7684\u573a\u666f\u4e2d\u6709\u4e0d\u540c\u7684\u5e94\u7528\uff0c\u4ee5\u4e0b\u662fMySQL\u7684\u4e3b\u8981\u5e94\u7528\u573a\u666f\u548c\u4f18\u52bf\u7684\u8be6\u7ec6\u89e3\u91ca\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Web\u5e94\u7528\u7a0b\u5e8f<\/li>\n<\/ol>\n\n\n\n<p>MySQL\u6700\u5e7f\u6cdb\u7684\u5e94\u7528\u573a\u666f\u4e4b\u4e00\u662fWeb\u5e94\u7528\u7a0b\u5e8f\u3002MySQL\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u3001\u53ef\u6269\u5c55\u6027\u548c\u5f00\u6e90\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u7c7b\u578b\u7684Web\u5e94\u7528\u7a0b\u5e8f\uff0c\u5305\u62ec\u7535\u5b50\u5546\u52a1\u7f51\u7ad9\u3001\u793e\u4ea4\u5a92\u4f53\u7f51\u7ad9\u3001\u535a\u5ba2\u548c\u8bba\u575b\u7b49\u3002\u4f7f\u7528MySQL\u4f5c\u4e3aWeb\u5e94\u7528\u7a0b\u5e8f\u7684\u540e\u7aef\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\uff0c\u5e76\u652f\u6301\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4f01\u4e1a\u5e94\u7528\u7a0b\u5e8f<\/li>\n<\/ol>\n\n\n\n<p>MySQL\u4e5f\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u4f01\u4e1a\u5e94\u7528\u7a0b\u5e8f\u3002\u4f01\u4e1a\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u7ba1\u7406\u548c\u5904\u7406\u5927\u91cf\u7684\u6570\u636e\uff0c\u5305\u62ec\u5ba2\u6237\u4fe1\u606f\u3001\u8ba2\u5355\u4fe1\u606f\u3001\u5e93\u5b58\u4fe1\u606f\u548c\u8d22\u52a1\u4fe1\u606f\u7b49\u3002MySQL\u53ef\u4ee5\u63d0\u4f9b\u9ad8\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\uff0c\u4ee5\u652f\u6301\u4f01\u4e1a\u7ea7\u5e94\u7528\u7a0b\u5e8f\u7684\u6570\u636e\u7ba1\u7406\u548c\u5904\u7406\u9700\u6c42\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4e91\u8ba1\u7b97<\/li>\n<\/ol>\n\n\n\n<p>MySQL\u662f\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u6700\u53d7\u6b22\u8fce\u7684\u6570\u636e\u5e93\u4e4b\u4e00\u3002MySQL\u7684\u53ef\u6269\u5c55\u6027\u3001\u9ad8\u6027\u80fd\u548c\u5f00\u6e90\u514d\u8d39\u7b49\u7279\u70b9\uff0c\u4f7f\u5f97\u5b83\u6210\u4e3a\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u6700\u9002\u5408\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u4e4b\u4e00\u3002\u5728\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\uff0cMySQL\u53ef\u4ee5\u901a\u8fc7\u591a\u4e2a\u865a\u62df\u673a\u6216\u5bb9\u5668\u6765\u8fdb\u884c\u6269\u5c55\uff0c\u4ee5\u5904\u7406\u5927\u91cf\u7684\u6570\u636e\u548c\u9ad8\u6d41\u91cf\u7684\u8bf7\u6c42\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f<\/li>\n<\/ol>\n\n\n\n<p>MySQL\u4e5f\u53ef\u4ee5\u7528\u4e8e\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u7684\u540e\u7aef\u6570\u636e\u5e93\u7cfb\u7edf\u3002MySQL\u7684\u9ad8\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\uff0c\u4f7f\u5f97\u5b83\u53ef\u4ee5\u5904\u7406\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u6570\u636e\u7ba1\u7406\u548c\u5904\u7406\u9700\u6c42\u3002\u4f7f\u7528MySQL\u4f5c\u4e3a\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u7684\u540e\u7aef\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\uff0c\u540c\u65f6\u652f\u6301\u591a\u79cd\u4e0d\u540c\u7684\u79fb\u52a8\u5e73\u53f0\u548c\u8bbe\u5907\u3002<\/p>\n\n\n\n<p>MySQL\u7684\u4e3b\u8981\u4f18\u52bf\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f00\u6e90\u514d\u8d39\uff1aMySQL\u662f\u4e00\u4e2a\u5f00\u6e90\u8f6f\u4ef6\uff0c\u53ef\u4ee5\u514d\u8d39\u4f7f\u7528\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u9075\u5faa\u76f8\u5e94\u7684\u5f00\u6e90\u8bb8\u53ef\u8bc1\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u4fee\u6539\u548c\u53d1\u5e03\u3002<\/li>\n\n\n\n<li>\u53ef\u6269\u5c55\u6027\uff1aMySQL\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6269\u5c55\u5230\u591a\u4e2a\u670d\u52a1\u5668\uff0c\u5e76\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u6570\u636e\u548c\u9ad8\u6d41\u91cf\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u5e73\u53f0\u517c\u5bb9\u6027\uff1aMySQL\u53ef\u4ee5\u8fd0\u884c\u5728\u591a\u79cd\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u5e73\u53f0\u4e0a\uff0c\u5305\u62ecWindows\u3001Linux\u3001Unix\u548cmacOS\u7b49\u3002<\/li>\n\n\n\n<li>\u5b89\u5168\u6027\uff1aMySQL\u63d0\u4f9b\u4e86\u8bb8\u591a\u5b89\u5168\u529f\u80fd\uff0c\u5982SSL\u52a0\u5bc6\u3001\u7528\u6237\u6743\u9650\u7ba1\u7406\u7b49\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4fdd\u5bc6\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n\n\n\n<li>\u6027\u80fd\uff1aMySQL\u662f\u4e00\u4e2a\u9ad8\u6548\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\uff0c\u5e76\u652f\u6301\u591a\u79cd\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u5982InnoDB\u3001MyISAM\u7b49\u3002<\/li>\n\n\n\n<li>\u793e\u533a\u652f\u6301\uff1aMySQL\u6709\u4e00\u4e2a\u5e9e\u5927\u7684\u5f00\u6e90\u793e\u533a\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5b66\u4e60\u8d44\u6e90\u548c\u6280\u672f\u652f\u6301\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u4f7f\u7528\u548c\u7ef4\u62a4MySQL\u3002<\/li>\n<\/ol>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"7\">\n<li>\u6570\u636e\u590d\u5236\u548c\u9ad8\u53ef\u7528\u6027\uff1aMySQL\u63d0\u4f9b\u4e86\u6570\u636e\u590d\u5236\u529f\u80fd\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e2aMySQL\u670d\u52a1\u5668\u7684\u6570\u636e\u590d\u5236\u5230\u591a\u4e2a\u670d\u52a1\u5668\u4e0a\u3002\u8fd9\u4f7f\u5f97MySQL\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u53ef\u7528\u6027\uff0c\u5373\u5728\u4e3b\u670d\u52a1\u5668\u53d1\u751f\u6545\u969c\u65f6\uff0c\u53ef\u4ee5\u5feb\u901f\u5207\u6362\u5230\u5907\u7528\u670d\u52a1\u5668\u4e0a\uff0c\u4ee5\u4fdd\u8bc1\u7cfb\u7edf\u7684\u53ef\u7528\u6027\u3002<\/li>\n\n\n\n<li>\u5bb9\u6613\u4f7f\u7528\u548c\u5b66\u4e60\uff1aMySQL\u662f\u4e00\u79cd\u6613\u4e8e\u5b66\u4e60\u548c\u4f7f\u7528\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u3002\u5b83\u7684SQL\u8bed\u8a00\u6613\u4e8e\u7406\u89e3\u548c\u4f7f\u7528\uff0c\u5e76\u4e14\u6709\u5f88\u591a\u53ef\u89c6\u5316\u5de5\u5177\u548c\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u7ba1\u7406\u548c\u7ef4\u62a4MySQL\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n<li>\u5f00\u53d1\u8005\u53cb\u597d\uff1aMySQL\u63d0\u4f9b\u4e86\u5e7f\u6cdb\u7684API\u548c\u8bed\u8a00\u652f\u6301\uff0c\u5305\u62ecPHP\u3001Java\u3001Python\u3001Ruby\u7b49\u3002\u8fd9\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06MySQL\u96c6\u6210\u5230\u4ed6\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5e76\u4f7f\u7528\u5404\u79cd\u7f16\u7a0b\u8bed\u8a00\u8fdb\u884c\u8bbf\u95ee\u548c\u7ba1\u7406\u3002<\/li>\n\n\n\n<li>\u6d3b\u8dc3\u7684\u5f00\u53d1\u548c\u66f4\u65b0\uff1aMySQL\u662f\u4e00\u4e2a\u6d3b\u8dc3\u7684\u5f00\u53d1\u548c\u66f4\u65b0\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u6301\u7eed\u4e0d\u65ad\u5730\u63a8\u51fa\u65b0\u7684\u7248\u672c\u548c\u529f\u80fd\uff0c\u4ee5\u9002\u5e94\u4e0d\u65ad\u53d8\u5316\u7684\u6570\u636e\u7ba1\u7406\u9700\u6c42\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cMySQL\u662f\u4e00\u79cd\u6d41\u884c\u7684\u3001\u9ad8\u6548\u7684\u3001\u5f00\u6e90\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5177\u6709\u53ef\u6269\u5c55\u6027\u3001\u5e73\u53f0\u517c\u5bb9\u6027\u3001\u5b89\u5168\u6027\u3001\u6027\u80fd\u548c\u793e\u533a\u652f\u6301\u7b49\u4f18\u70b9\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e0b\u8f7d\u548c\u5b89\u88c5MySql<\/p>\n\n\n\n<p>MySQL\u662f\u4e00\u79cd\u6d41\u884c\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u652f\u6301\u591a\u79cd\u64cd\u4f5c\u7cfb\u7edf\u5e73\u53f0\u3002\u4ee5\u4e0b\u662fMySQL\u7684\u4e0b\u8f7d\u548c\u5b89\u88c5\u6b65\u9aa4\u7684\u8be6\u7ec6\u89e3\u91ca\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e0b\u8f7dMySQL<\/li>\n<\/ol>\n\n\n\n<p>MySQL\u5b98\u65b9\u7f51\u7ad9\u63d0\u4f9b\u4e86\u5404\u79cd\u7248\u672c\u7684MySQL\u4e0b\u8f7d\uff0c\u5305\u62ec\u793e\u533a\u7248\u548c\u4f01\u4e1a\u7248\u7b49\u3002\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u9009\u62e9\u9002\u5408\u60a8\u7684\u7248\u672c\u3002\u4ee5\u4e0b\u662fMySQL\u793e\u533a\u7248\u7684\u4e0b\u8f7d\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6253\u5f00MySQL\u5b98\u65b9\u7f51\u7ad9\uff08<a href=\"https:\/\/dev.mysql.com\/downloads\/mysql\/%EF%BC%89%EF%BC%9B\">https:\/\/dev.mysql.com\/downloads\/mysql\/\uff09\uff1b<\/a><\/li>\n\n\n\n<li>\u9009\u62e9\u201cMySQL Community Server\u201d\uff1b<\/li>\n\n\n\n<li>\u5728\u201cSelect Operating System\u201d\u4e0b\u62c9\u83dc\u5355\u4e2d\u9009\u62e9\u60a8\u7684\u64cd\u4f5c\u7cfb\u7edf\u5e73\u53f0\uff1b<\/li>\n\n\n\n<li>\u5728\u201cSelect Version\u201d\u4e0b\u62c9\u83dc\u5355\u4e2d\u9009\u62e9\u60a8\u9700\u8981\u7684\u7248\u672c\uff1b<\/li>\n\n\n\n<li>\u70b9\u51fb\u201cDownload\u201d\u6309\u94ae\uff0c\u5f00\u59cb\u4e0b\u8f7dMySQL\u5b89\u88c5\u6587\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5b89\u88c5MySQL<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u4e0b\u8f7dMySQL\u5b89\u88c5\u6587\u4ef6\u540e\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884cMySQL\u7684\u5b89\u88c5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53cc\u51fb\u4e0b\u8f7d\u7684\u5b89\u88c5\u6587\u4ef6\uff0c\u5f00\u59cb\u5b89\u88c5MySQL\uff1b<\/li>\n\n\n\n<li>\u5728MySQL\u5b89\u88c5\u7a0b\u5e8f\u754c\u9762\u4e2d\uff0c\u9009\u62e9\u201cCustom\u201d\u9009\u9879\uff0c\u4ee5\u4fbf\u53ef\u4ee5\u9009\u62e9\u81ea\u5df1\u9700\u8981\u5b89\u88c5\u7684\u7ec4\u4ef6\uff1b<\/li>\n\n\n\n<li>\u9009\u62e9MySQL\u7684\u5b89\u88c5\u8def\u5f84\uff1b<\/li>\n\n\n\n<li>\u5728\u201cAuthentication Method\u201d\u9009\u9879\u4e2d\uff0c\u9009\u62e9\u60a8\u9700\u8981\u4f7f\u7528\u7684\u8eab\u4efd\u9a8c\u8bc1\u65b9\u5f0f\uff1b<\/li>\n\n\n\n<li>\u8bbe\u7f6eMySQL\u7684root\u7528\u6237\u5bc6\u7801\uff1b<\/li>\n\n\n\n<li>\u70b9\u51fb\u201cInstall\u201d\u6309\u94ae\uff0c\u5f00\u59cb\u5b89\u88c5MySQL\uff1b<\/li>\n\n\n\n<li>\u7b49\u5f85MySQL\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u5355\u51fb\u201cFinish\u201d\u6309\u94ae\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u542f\u52a8\u548c\u5173\u95edMySQL\u670d\u52a1<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u5b89\u88c5MySQL\u540e\uff0c\u60a8\u9700\u8981\u542f\u52a8MySQL\u670d\u52a1\uff0c\u4ee5\u4fbf\u53ef\u4ee5\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668\u8fdb\u884c\u6570\u636e\u7ba1\u7406\u548c\u5904\u7406\u3002\u4ee5\u4e0b\u662f\u542f\u52a8\u548c\u5173\u95edMySQL\u670d\u52a1\u7684\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u542f\u52a8MySQL\u670d\u52a1\uff1a\u5728Windows\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u5728\u670d\u52a1\u7ba1\u7406\u5668\u4e2d\u542f\u52a8MySQL\u670d\u52a1\uff1b\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u201csystemctl start mysql.service\u201d\u547d\u4ee4\u542f\u52a8MySQL\u670d\u52a1\uff1b<\/li>\n\n\n\n<li>\u5173\u95edMySQL\u670d\u52a1\uff1a\u5728Windows\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u5728\u670d\u52a1\u7ba1\u7406\u5668\u4e2d\u5173\u95edMySQL\u670d\u52a1\uff1b\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u201csystemctl stop mysql.service\u201d\u547d\u4ee4\u5173\u95edMySQL\u670d\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0c\u4e0b\u8f7d\u548c\u5b89\u88c5MySQL\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u6309\u7167\u4e0a\u8ff0\u6b65\u9aa4\u8fdb\u884c\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u914d\u7f6eMySql\u73af\u5883\u53d8\u91cf<\/p>\n\n\n\n<p>\u914d\u7f6eMySQL\u73af\u5883\u53d8\u91cf\u53ef\u4ee5\u4f7f\u5f97\u60a8\u53ef\u4ee5\u5728\u4efb\u4f55\u4f4d\u7f6e\u6267\u884cMySQL\u547d\u4ee4\uff0c\u800c\u4e0d\u5fc5\u5728MySQL\u5b89\u88c5\u76ee\u5f55\u4e2d\u6253\u5f00\u547d\u4ee4\u884c\u7a97\u53e3\u3002\u4ee5\u4e0b\u662f\u5728Windows\u7cfb\u7edf\u4e2d\u914d\u7f6eMySQL\u73af\u5883\u53d8\u91cf\u7684\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6253\u5f00\u201c\u73af\u5883\u53d8\u91cf\u201d\u7a97\u53e3<\/li>\n<\/ol>\n\n\n\n<p>\u5728Windows\u7cfb\u7edf\u4e2d\uff0c\u60a8\u53ef\u4ee5\u6309\u4e0bWin + R\u952e\u7ec4\u5408\u6253\u5f00\u8fd0\u884c\u5bf9\u8bdd\u6846\uff0c\u7136\u540e\u8f93\u5165\u201csysdm.cpl\u201d\u5e76\u6309\u4e0bEnter\u952e\uff0c\u6253\u5f00\u7cfb\u7edf\u5c5e\u6027\u7a97\u53e3\u3002\u5728\u7cfb\u7edf\u5c5e\u6027\u7a97\u53e3\u4e2d\uff0c\u9009\u62e9\u201c\u9ad8\u7ea7\u201d\u9009\u9879\u5361\uff0c\u7136\u540e\u5355\u51fb\u201c\u73af\u5883\u53d8\u91cf\u201d\u6309\u94ae\uff0c\u6253\u5f00\u201c\u73af\u5883\u53d8\u91cf\u201d\u7a97\u53e3\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u914d\u7f6eMySQL\u73af\u5883\u53d8\u91cf<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u201c\u73af\u5883\u53d8\u91cf\u201d\u7a97\u53e3\u4e2d\uff0c\u627e\u5230\u201c\u7cfb\u7edf\u53d8\u91cf\u201d\u533a\u57df\uff0c\u5e76\u5355\u51fb\u201c\u65b0\u5efa\u201d\u6309\u94ae\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7cfb\u7edf\u53d8\u91cf\u3002\u5728\u201c\u53d8\u91cf\u540d\u201d\u5b57\u6bb5\u4e2d\u8f93\u5165\u201cMYSQL_HOME\u201d\uff0c\u5728\u201c\u53d8\u91cf\u503c\u201d\u5b57\u6bb5\u4e2d\u8f93\u5165MySQL\u7684\u5b89\u88c5\u8def\u5f84\uff08\u4f8b\u5982\uff0c\u201cC:\\Program Files\\MySQL\\MySQL Server 8.0\u201d\uff09\u3002<\/p>\n\n\n\n<p>\u7136\u540e\uff0c\u5728\u201c\u7cfb\u7edf\u53d8\u91cf\u201d\u533a\u57df\u4e2d\uff0c\u627e\u5230\u201cPath\u201d\u53d8\u91cf\uff0c\u5e76\u5355\u51fb\u201c\u7f16\u8f91\u201d\u6309\u94ae\u3002\u5728\u201c\u7f16\u8f91\u73af\u5883\u53d8\u91cf\u201d\u7a97\u53e3\u4e2d\uff0c\u5355\u51fb\u201c\u65b0\u5efa\u201d\u6309\u94ae\uff0c\u8f93\u5165\u201c%MYSQL_HOME%\\bin\u201d\u4f5c\u4e3a\u65b0\u8def\u5f84\uff0c\u5e76\u5355\u51fb\u201c\u786e\u5b9a\u201d\u6309\u94ae\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4fdd\u5b58\u5e76\u5e94\u7528\u73af\u5883\u53d8\u91cf\u914d\u7f6e<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u5b8c\u6210MySQL\u73af\u5883\u53d8\u91cf\u914d\u7f6e\u540e\uff0c\u5355\u51fb\u201c\u786e\u5b9a\u201d\u6309\u94ae\u5173\u95ed\u6240\u6709\u6253\u5f00\u7684\u7a97\u53e3\uff0c\u4ee5\u4fdd\u5b58\u60a8\u7684\u66f4\u6539\u3002\u7136\u540e\uff0c\u60a8\u9700\u8981\u91cd\u65b0\u6253\u5f00\u4e00\u4e2a\u547d\u4ee4\u884c\u7a97\u53e3\uff0c\u4ee5\u4f7f\u60a8\u7684\u66f4\u6539\u751f\u6548\u3002\u5728\u547d\u4ee4\u884c\u7a97\u53e3\u4e2d\uff0c\u8f93\u5165\u201cmysql -V\u201d\u547d\u4ee4\uff0c\u5982\u679c\u51fa\u73b0MySQL\u7684\u7248\u672c\u4fe1\u606f\uff0c\u5219\u8868\u793a\u60a8\u5df2\u6210\u529f\u914d\u7f6eMySQL\u73af\u5883\u53d8\u91cf\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728Windows\u7cfb\u7edf\u4e2d\u914d\u7f6eMySQL\u73af\u5883\u53d8\u91cf\u53ef\u4ee5\u8ba9\u60a8\u5728\u4efb\u4f55\u4f4d\u7f6e\u8fd0\u884cMySQL\u547d\u4ee4\uff0c\u4ece\u800c\u63d0\u9ad8\u60a8\u7684\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u542f\u52a8\u548c\u5173\u95edMySql\u670d\u52a1<\/p>\n\n\n\n<p>\u5728\u5b89\u88c5MySQL\u540e\uff0c\u60a8\u9700\u8981\u542f\u52a8MySQL\u670d\u52a1\uff0c\u4ee5\u4fbf\u53ef\u4ee5\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668\u8fdb\u884c\u6570\u636e\u7ba1\u7406\u548c\u5904\u7406\u3002\u4ee5\u4e0b\u662f\u5728Windows\u548cLinux\u7cfb\u7edf\u4e2d\u542f\u52a8\u548c\u5173\u95edMySQL\u670d\u52a1\u7684\u8be6\u7ec6\u6b65\u9aa4\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Windows\u7cfb\u7edf<\/li>\n<\/ol>\n\n\n\n<p>\u542f\u52a8MySQL\u670d\u52a1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728Windows\u4efb\u52a1\u680f\u4e2d\uff0c\u5355\u51fb\u201c\u5f00\u59cb\u201d\u6309\u94ae\uff1b<\/li>\n\n\n\n<li>\u9009\u62e9\u201c\u63a7\u5236\u9762\u677f\u201d\uff0c\u7136\u540e\u9009\u62e9\u201c\u7ba1\u7406\u5de5\u5177\u201d\uff1b<\/li>\n\n\n\n<li>\u9009\u62e9\u201c\u670d\u52a1\u201d\uff0c\u627e\u5230\u201cMySQL\u201d\u670d\u52a1\uff1b<\/li>\n\n\n\n<li>\u53f3\u952e\u5355\u51fb\u201cMySQL\u201d\u670d\u52a1\uff0c\u5e76\u9009\u62e9\u201c\u542f\u52a8\u201d\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5173\u95edMySQL\u670d\u52a1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728Windows\u4efb\u52a1\u680f\u4e2d\uff0c\u5355\u51fb\u201c\u5f00\u59cb\u201d\u6309\u94ae\uff1b<\/li>\n\n\n\n<li>\u9009\u62e9\u201c\u63a7\u5236\u9762\u677f\u201d\uff0c\u7136\u540e\u9009\u62e9\u201c\u7ba1\u7406\u5de5\u5177\u201d\uff1b<\/li>\n\n\n\n<li>\u9009\u62e9\u201c\u670d\u52a1\u201d\uff0c\u627e\u5230\u201cMySQL\u201d\u670d\u52a1\uff1b<\/li>\n\n\n\n<li>\u53f3\u952e\u5355\u51fb\u201cMySQL\u201d\u670d\u52a1\uff0c\u5e76\u9009\u62e9\u201c\u505c\u6b62\u201d\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>Linux\u7cfb\u7edf<\/li>\n<\/ol>\n\n\n\n<p>\u542f\u52a8MySQL\u670d\u52a1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6253\u5f00\u7ec8\u7aef\u7a97\u53e3\uff1b<\/li>\n\n\n\n<li>\u8f93\u5165\u201csudo systemctl start mysql.service\u201d\u547d\u4ee4\uff1b<\/li>\n\n\n\n<li>\u8f93\u5165\u7ba1\u7406\u5458\u5bc6\u7801\uff0c\u4ee5\u786e\u8ba4\u6267\u884c\u547d\u4ee4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5173\u95edMySQL\u670d\u52a1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6253\u5f00\u7ec8\u7aef\u7a97\u53e3\uff1b<\/li>\n\n\n\n<li>\u8f93\u5165\u201csudo systemctl stop mysql.service\u201d\u547d\u4ee4\uff1b<\/li>\n\n\n\n<li>\u8f93\u5165\u7ba1\u7406\u5458\u5bc6\u7801\uff0c\u4ee5\u786e\u8ba4\u6267\u884c\u547d\u4ee4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u91cd\u542fMySQL\u670d\u52a1\uff0c\u4ee5\u4fbf\u5e94\u7528\u65b0\u7684\u914d\u7f6e\u66f4\u6539\u3002\u4ee5\u4e0b\u662f\u5728Windows\u548cLinux\u7cfb\u7edf\u4e2d\u91cd\u542fMySQL\u670d\u52a1\u7684\u8be6\u7ec6\u6b65\u9aa4\u3002<\/p>\n\n\n\n<p>\u91cd\u542fMySQL\u670d\u52a1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728Windows\u7cfb\u7edf\u4e2d\uff0c\u9009\u62e9\u201c\u670d\u52a1\u201d\u7a97\u53e3\u4e2d\u7684\u201cMySQL\u201d\u670d\u52a1\uff0c\u53f3\u952e\u5355\u51fb\u8be5\u670d\u52a1\uff0c\u7136\u540e\u9009\u62e9\u201c\u91cd\u542f\u201d\uff1b<\/li>\n\n\n\n<li>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6253\u5f00\u7ec8\u7aef\u7a97\u53e3\uff0c\u8f93\u5165\u201csudo systemctl restart mysql.service\u201d\u547d\u4ee4\uff0c\u7136\u540e\u8f93\u5165\u7ba1\u7406\u5458\u5bc6\u7801\uff0c\u4ee5\u786e\u8ba4\u6267\u884c\u547d\u4ee4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0c\u542f\u52a8\u548c\u5173\u95edMySQL\u670d\u52a1\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u6309\u7167\u4e0a\u8ff0\u6b65\u9aa4\u8fdb\u884c\u5373\u53ef\u3002\u91cd\u542fMySQL\u670d\u52a1\u53ef\u4ee5\u5e2e\u52a9\u5e94\u7528\u65b0\u7684\u914d\u7f6e\u66f4\u6539\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caMySql\u57fa\u672c\u6982\u5ff5\u6570\u636e\u5e93<\/p>\n\n\n\n<p>MySQL\u662f\u4e00\u4e2a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5b83\u57fa\u4e8e\u5173\u7cfb\u6a21\u578b\u6765\u5b58\u50a8\u548c\u7ba1\u7406\u6570\u636e\u3002\u5728MySQL\u4e2d\uff0c\u4e00\u4e2a\u6570\u636e\u5e93\u662f\u7531\u591a\u4e2a\u8868\u7ec4\u6210\u7684\uff0c\u6bcf\u4e2a\u8868\u7531\u4e00\u7cfb\u5217\u5217\u548c\u884c\u7ec4\u6210\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u7279\u5b9a\u7c7b\u578b\u7684\u6570\u636e\u3002\u4ee5\u4e0b\u662fMySQL\u4e2d\u7684\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93<\/li>\n<\/ol>\n\n\n\n<p>\u4e00\u4e2a\u6570\u636e\u5e93\u662fMySQL\u4e2d\u6700\u9ad8\u5c42\u6b21\u7684\u6570\u636e\u5bb9\u5668\uff0c\u5b83\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u8868\u548c\u5176\u4ed6\u76f8\u5173\u5bf9\u8c61\u3002\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u521b\u5efa\u591a\u4e2a\u6570\u636e\u5e93\uff0c\u5e76\u5c06\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u5b58\u50a8\u5728\u4e0d\u540c\u7684\u6570\u636e\u5e93\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8868<\/li>\n<\/ol>\n\n\n\n<p>\u4e00\u4e2a\u8868\u662f\u7531\u4e00\u7cfb\u5217\u884c\u548c\u5217\u7ec4\u6210\u7684\u4e8c\u7ef4\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u7279\u5b9a\u7c7b\u578b\u7684\u6570\u636e\u3002\u6bcf\u4e2a\u8868\u5305\u542b\u4e00\u4e2a\u8868\u540d\u3001\u591a\u4e2a\u5217\u540d\u548c\u591a\u884c\u6570\u636e\u8bb0\u5f55\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u5217<\/li>\n<\/ol>\n\n\n\n<p>\u4e00\u5217\u4ee3\u8868\u8868\u4e2d\u7684\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5982\u6574\u6570\u3001\u5b57\u7b26\u3001\u65e5\u671f\u7b49\u3002\u5728MySQL\u4e2d\uff0c\u6bcf\u4e2a\u5217\u90fd\u5177\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u540d\u79f0\u548c\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u884c<\/li>\n<\/ol>\n\n\n\n<p>\u4e00\u884c\u662f\u8868\u4e2d\u7684\u4e00\u4e2a\u6570\u636e\u8bb0\u5f55\uff0c\u7531\u4e00\u7cfb\u5217\u5217\u503c\u7ec4\u6210\u3002\u5728MySQL\u4e2d\uff0c\u6bcf\u4e00\u884c\u90fd\u5177\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u6807\u8bc6\u7b26\uff0c\u79f0\u4e3a\u884cID\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u952e<\/li>\n<\/ol>\n\n\n\n<p>\u952e\u662f\u7528\u4e8e\u5728\u8868\u4e2d\u552f\u4e00\u6807\u8bc6\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u5217\u3002\u5728MySQL\u4e2d\uff0c\u6709\u4e24\u79cd\u7c7b\u578b\u7684\u952e\uff1a\u4e3b\u952e\u548c\u5916\u952e\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3b\u952e\u662f\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u5217\u3002<\/li>\n\n\n\n<li>\u5916\u952e\u662f\u4e00\u4e2a\u6307\u5411\u5176\u4ed6\u8868\u7684\u952e\uff0c\u5b83\u7528\u4e8e\u5efa\u7acb\u8868\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>\u7d22\u5f15<\/li>\n<\/ol>\n\n\n\n<p>\u7d22\u5f15\u662f\u7528\u4e8e\u52a0\u901f\u8868\u4e2d\u6570\u636e\u68c0\u7d22\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\u3002\u5b83\u5141\u8bb8MySQL\u5feb\u901f\u5b9a\u4f4d\u8868\u4e2d\u7684\u7279\u5b9a\u6570\u636e\u8bb0\u5f55\uff0c\u4ee5\u63d0\u9ad8\u68c0\u7d22\u6548\u7387\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"7\">\n<li>\u89c6\u56fe<\/li>\n<\/ol>\n\n\n\n<p>\u89c6\u56fe\u662f\u4e00\u4e2a\u865a\u62df\u8868\uff0c\u5b83\u662f\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u8868\u7684\u67e5\u8be2\u7ed3\u679c\u7ec4\u6210\u7684\u3002\u5728MySQL\u4e2d\uff0c\u89c6\u56fe\u5141\u8bb8\u7528\u6237\u5bf9\u6570\u636e\u8fdb\u884c\u7279\u5b9a\u7684\u8fc7\u6ee4\u548c\u6392\u5e8f\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728MySQL\u4e2d\uff0c\u6570\u636e\u5e93\u662f\u7531\u591a\u4e2a\u8868\u7ec4\u6210\u7684\uff0c\u6bcf\u4e2a\u8868\u7531\u4e00\u7cfb\u5217\u5217\u548c\u884c\u7ec4\u6210\u3002\u5217\u4ee3\u8868\u8868\u4e2d\u7684\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u884c\u4ee3\u8868\u8868\u4e2d\u7684\u4e00\u4e2a\u6570\u636e\u8bb0\u5f55\u3002\u952e\u548c\u7d22\u5f15\u7528\u4e8e\u4f18\u5316\u8868\u4e2d\u6570\u636e\u7684\u68c0\u7d22\uff0c\u800c\u89c6\u56fe\u5141\u8bb8\u7528\u6237\u5bf9\u6570\u636e\u8fdb\u884c\u7279\u5b9a\u7684\u8fc7\u6ee4\u548c\u6392\u5e8f\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caMySql\u57fa\u672c\u6982\u5ff5\u6570\u636e\u8868<\/p>\n\n\n\n<p>MySQL\u4e2d\u7684\u6570\u636e\u8868\u662f\u7531\u4e00\u7cfb\u5217\u884c\u548c\u5217\u7ec4\u6210\u7684\u4e8c\u7ef4\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u7279\u5b9a\u7c7b\u578b\u7684\u6570\u636e\u3002\u4ee5\u4e0b\u662fMySQL\u4e2d\u7684\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\u6570\u636e\u8868\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8868\u540d<\/li>\n<\/ol>\n\n\n\n<p>\u8868\u540d\u662f\u8868\u7684\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u5b83\u7528\u4e8e\u533a\u5206\u4e0d\u540c\u7684\u8868\u3002\u5728MySQL\u4e2d\uff0c\u8868\u540d\u662f\u5927\u5c0f\u5199\u654f\u611f\u7684\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5217<\/li>\n<\/ol>\n\n\n\n<p>\u4e00\u5217\u4ee3\u8868\u8868\u4e2d\u7684\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5982\u6574\u6570\u3001\u5b57\u7b26\u3001\u65e5\u671f\u7b49\u3002\u5728MySQL\u4e2d\uff0c\u6bcf\u4e2a\u5217\u90fd\u5177\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u540d\u79f0\u548c\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u884c<\/li>\n<\/ol>\n\n\n\n<p>\u4e00\u884c\u662f\u8868\u4e2d\u7684\u4e00\u4e2a\u6570\u636e\u8bb0\u5f55\uff0c\u7531\u4e00\u7cfb\u5217\u5217\u503c\u7ec4\u6210\u3002\u5728MySQL\u4e2d\uff0c\u6bcf\u4e00\u884c\u90fd\u5177\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u6807\u8bc6\u7b26\uff0c\u79f0\u4e3a\u884cID\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6570\u636e\u7c7b\u578b<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u636e\u7c7b\u578b\u662f\u7528\u4e8e\u6307\u5b9a\u6bcf\u5217\u4e2d\u5b58\u50a8\u7684\u6570\u636e\u7c7b\u578b\u7684\u4e00\u79cd\u5c5e\u6027\u3002\u5728MySQL\u4e2d\uff0c\u5e38\u89c1\u7684\u6570\u636e\u7c7b\u578b\u5305\u62ec\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u3001\u65e5\u671f\u548c\u65f6\u95f4\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u4e3b\u952e<\/li>\n<\/ol>\n\n\n\n<p>\u4e3b\u952e\u662f\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u5217\u3002\u5728MySQL\u4e2d\uff0c\u6bcf\u4e2a\u8868\u53ea\u80fd\u6709\u4e00\u4e2a\u4e3b\u952e\uff0c\u4e3b\u952e\u53ef\u4ee5\u662f\u5355\u4e2a\u5217\u6216\u591a\u4e2a\u5217\u7684\u7ec4\u5408\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>\u5916\u952e<\/li>\n<\/ol>\n\n\n\n<p>\u5916\u952e\u662f\u4e00\u4e2a\u6307\u5411\u5176\u4ed6\u8868\u7684\u952e\uff0c\u5b83\u7528\u4e8e\u5efa\u7acb\u8868\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u5728MySQL\u4e2d\uff0c\u5916\u952e\u7528\u4e8e\u5c06\u4e00\u4e2a\u8868\u4e2d\u7684\u6570\u636e\u8bb0\u5f55\u4e0e\u53e6\u4e00\u4e2a\u8868\u4e2d\u7684\u6570\u636e\u8bb0\u5f55\u5173\u8054\u8d77\u6765\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"7\">\n<li>\u7d22\u5f15<\/li>\n<\/ol>\n\n\n\n<p>\u7d22\u5f15\u662f\u7528\u4e8e\u52a0\u901f\u8868\u4e2d\u6570\u636e\u68c0\u7d22\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\u3002\u5b83\u5141\u8bb8MySQL\u5feb\u901f\u5b9a\u4f4d\u8868\u4e2d\u7684\u7279\u5b9a\u6570\u636e\u8bb0\u5f55\uff0c\u4ee5\u63d0\u9ad8\u68c0\u7d22\u6548\u7387\u3002\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4e3a\u4e00\u5217\u6216\u591a\u5217\u521b\u5efa\u7d22\u5f15\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728MySQL\u4e2d\uff0c\u6570\u636e\u8868\u662f\u7531\u4e00\u7cfb\u5217\u884c\u548c\u5217\u7ec4\u6210\u7684\u4e8c\u7ef4\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u7279\u5b9a\u7c7b\u578b\u7684\u6570\u636e\u3002\u8868\u540d\u662f\u8868\u7684\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u5217\u4ee3\u8868\u8868\u4e2d\u7684\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u884c\u4ee3\u8868\u8868\u4e2d\u7684\u4e00\u4e2a\u6570\u636e\u8bb0\u5f55\u3002\u4e3b\u952e\u548c\u5916\u952e\u7528\u4e8e\u5efa\u7acb\u8868\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u7d22\u5f15\u7528\u4e8e\u4f18\u5316\u8868\u4e2d\u6570\u636e\u7684\u68c0\u7d22\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caMySql\u5ba2\u6237\u7aef\u5de5\u5177<\/p>\n\n\n\n<p>MySQL\u5ba2\u6237\u7aef\u5de5\u5177\u662f\u7528\u4e8e\u8fde\u63a5\u548c\u7ba1\u7406MySQL\u670d\u52a1\u5668\u7684\u5de5\u5177\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684MySQL\u5ba2\u6237\u7aef\u5de5\u5177\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>MySQL Workbench<\/li>\n<\/ol>\n\n\n\n<p>MySQL Workbench\u662fMySQL\u5b98\u65b9\u63a8\u51fa\u7684\u4e00\u4e2a\u5f3a\u5927\u7684\u56fe\u5f62\u5316\u6570\u636e\u5e93\u8bbe\u8ba1\u548c\u7ba1\u7406\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u5b8c\u6574\u7684\u6570\u636e\u5e93\u5f00\u53d1\u3001\u7ba1\u7406\u548c\u8c03\u8bd5\u5de5\u5177\uff0c\u5305\u62ec\u6570\u636e\u5efa\u6a21\u3001SQL\u5f00\u53d1\u3001\u6570\u636e\u7ba1\u7406\u3001\u670d\u52a1\u5668\u914d\u7f6e\u7b49\u529f\u80fd\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>Navicat for MySQL<\/li>\n<\/ol>\n\n\n\n<p>Navicat for MySQL\u662f\u4e00\u79cd\u6d41\u884c\u7684MySQL\u5ba2\u6237\u7aef\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4\u4e30\u5bcc\u7684\u7ba1\u7406\u548c\u5f00\u53d1\u5de5\u5177\uff0c\u5305\u62ec\u6570\u636e\u5efa\u6a21\u3001SQL\u7f16\u8f91\u3001\u6570\u636e\u5bfc\u5165\u5bfc\u51fa\u3001\u6570\u636e\u540c\u6b65\u3001\u5907\u4efd\u6062\u590d\u7b49\u529f\u80fd\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>HeidiSQL<\/li>\n<\/ol>\n\n\n\n<p>HeidiSQL\u662f\u4e00\u79cd\u514d\u8d39\u7684\u5f00\u6e90MySQL\u5ba2\u6237\u7aef\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4\u6613\u4e8e\u4f7f\u7528\u7684\u7ba1\u7406\u548c\u5f00\u53d1\u5de5\u5177\uff0c\u5305\u62ec\u6570\u636e\u5efa\u6a21\u3001SQL\u7f16\u8f91\u3001\u6570\u636e\u5bfc\u5165\u5bfc\u51fa\u3001\u6570\u636e\u540c\u6b65\u3001\u5907\u4efd\u6062\u590d\u7b49\u529f\u80fd\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>phpMyAdmin<\/li>\n<\/ol>\n\n\n\n<p>phpMyAdmin\u662f\u4e00\u79cd\u57fa\u4e8eWeb\u7684MySQL\u5ba2\u6237\u7aef\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4\u6613\u4e8e\u4f7f\u7528\u7684\u7ba1\u7406\u548c\u5f00\u53d1\u5de5\u5177\uff0c\u5305\u62ec\u6570\u636e\u5efa\u6a21\u3001SQL\u7f16\u8f91\u3001\u6570\u636e\u5bfc\u5165\u5bfc\u51fa\u3001\u6570\u636e\u540c\u6b65\u3001\u5907\u4efd\u6062\u590d\u7b49\u529f\u80fd\u3002\u4f7f\u7528phpMyAdmin\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7Web\u6d4f\u89c8\u5668\u7ba1\u7406MySQL\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cMySQL\u5ba2\u6237\u7aef\u5de5\u5177\u662f\u7528\u4e8e\u8fde\u63a5\u548c\u7ba1\u7406MySQL\u670d\u52a1\u5668\u7684\u5de5\u5177\uff0c\u5305\u62ecMySQL\u5b98\u65b9\u63a8\u51fa\u7684MySQL Workbench\u548c\u5176\u4ed6\u7b2c\u4e09\u65b9\u5de5\u5177\uff0c\u5982Navicat for MySQL\u3001HeidiSQL\u548cphpMyAdmin\u7b49\u3002\u8fd9\u4e9b\u5de5\u5177\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u7ba1\u7406\u548c\u5f00\u53d1\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u8f7b\u677e\u5730\u8fdb\u884cMySQL\u6570\u636e\u5e93\u7ba1\u7406\u548c\u5f00\u53d1\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caSQL\u8bed\u8a00\u7b80\u4ecb<\/p>\n\n\n\n<p>SQL\uff08Structured Query Language\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u7ba1\u7406\u548c\u5904\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u6807\u51c6\u8bed\u8a00\u3002\u5b83\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5982MySQL\u3001Oracle\u3001Microsoft SQL Server\u7b49\u3002\u4ee5\u4e0b\u662fSQL\u8bed\u8a00\u7684\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93\u64cd\u4f5c<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u7528\u4e8e\u5bf9\u6570\u636e\u5e93\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u5982\u521b\u5efa\u3001\u5220\u9664\u3001\u5907\u4efd\u548c\u6062\u590d\u6570\u636e\u5e93\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6570\u636e\u8868\u64cd\u4f5c<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u7528\u4e8e\u5bf9\u6570\u636e\u8868\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u5982\u521b\u5efa\u3001\u5220\u9664\u3001\u91cd\u547d\u540d\u548c\u4fee\u6539\u6570\u636e\u8868\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u6570\u636e\u68c0\u7d22<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u7528\u4e8e\u4ece\u6570\u636e\u8868\u4e2d\u68c0\u7d22\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528SELECT\u8bed\u53e5\u6307\u5b9a\u8981\u68c0\u7d22\u7684\u6570\u636e\u5217\u548c\u68c0\u7d22\u6761\u4ef6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6570\u636e\u8fc7\u6ee4<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u4f7f\u7528WHERE\u5b50\u53e5\u8fc7\u6ee4\u68c0\u7d22\u7ed3\u679c\uff0c\u4ee5\u4fbf\u53ea\u68c0\u7d22\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u6570\u636e\u6392\u5e8f<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u4f7f\u7528ORDER BY\u5b50\u53e5\u5c06\u68c0\u7d22\u7ed3\u679c\u6309\u6307\u5b9a\u7684\u5217\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>\u6570\u636e\u5206\u7ec4<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u4f7f\u7528GROUP BY\u5b50\u53e5\u5c06\u68c0\u7d22\u7ed3\u679c\u6309\u6307\u5b9a\u7684\u5217\u5206\u7ec4\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"7\">\n<li>\u6570\u636e\u805a\u5408<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u4f7f\u7528\u805a\u5408\u51fd\u6570\uff08\u5982SUM\u3001AVG\u3001MAX\u548cMIN\uff09\u5bf9\u6570\u636e\u8fdb\u884c\u805a\u5408\u8ba1\u7b97\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"8\">\n<li>\u6570\u636e\u8fde\u63a5<\/li>\n<\/ol>\n\n\n\n<p>SQL\u53ef\u4ee5\u4f7f\u7528JOIN\u8bed\u53e5\u5c06\u4e24\u4e2a\u6216\u591a\u4e2a\u6570\u636e\u8868\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u4ee5\u4fbf\u68c0\u7d22\u548c\u5904\u7406\u76f8\u5173\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cSQL\u662f\u4e00\u79cd\u7528\u4e8e\u7ba1\u7406\u548c\u5904\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u6807\u51c6\u8bed\u8a00\uff0c\u5b83\u53ef\u4ee5\u6267\u884c\u5404\u79cd\u6570\u636e\u5e93\u64cd\u4f5c\u3001\u6570\u636e\u8868\u64cd\u4f5c\u3001\u6570\u636e\u68c0\u7d22\u3001\u6570\u636e\u8fc7\u6ee4\u3001\u6570\u636e\u6392\u5e8f\u3001\u6570\u636e\u5206\u7ec4\u3001\u6570\u636e\u805a\u5408\u548c\u6570\u636e\u8fde\u63a5\u7b49\u529f\u80fd\u3002SQL\u8bed\u8a00\u662f\u5f00\u53d1\u548c\u7ba1\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u57fa\u7840\uff0c\u5b66\u4e60SQL\u8bed\u8a00\u5bf9\u4e8e\u4efb\u4f55\u60f3\u8981\u4ece\u4e8b\u6570\u636e\u5e93\u7ba1\u7406\u548c\u5f00\u53d1\u7684\u4eba\u6765\u8bf4\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caSQL\u8bed\u53e5\u7c7b\u578b\uff08DDL\uff0cDML\uff0cDCL\uff09<\/p>\n\n\n\n<p>\u5728SQL\u8bed\u8a00\u4e2d\uff0c\u6709\u4e09\u79cd\u57fa\u672c\u7c7b\u578b\u7684SQL\u8bed\u53e5\uff0c\u5206\u522b\u662fDDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff09\u3001DML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09\u548cDCL\uff08\u6570\u636e\u63a7\u5236\u8bed\u8a00\uff09\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>DDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff09<\/li>\n<\/ol>\n\n\n\n<p>DDL\u662f\u7528\u4e8e\u521b\u5efa\u3001\u4fee\u6539\u548c\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\uff08\u5982\u8868\u3001\u7d22\u5f15\u548c\u89c6\u56fe\uff09\u7684SQL\u8bed\u53e5\u3002DDL\u8bed\u53e5\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CREATE\uff1a\u7528\u4e8e\u521b\u5efa\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u3001\u7d22\u5f15\u548c\u89c6\u56fe\u3002<\/li>\n\n\n\n<li>ALTER\uff1a\u7528\u4e8e\u4fee\u6539\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u7ed3\u6784\u3001\u7d22\u5f15\u548c\u7ea6\u675f\u3002<\/li>\n\n\n\n<li>DROP\uff1a\u7528\u4e8e\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u3001\u7d22\u5f15\u548c\u89c6\u56fe\u3002<\/li>\n\n\n\n<li>TRUNCATE\uff1a\u7528\u4e8e\u5220\u9664\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002<\/li>\n\n\n\n<li>RENAME\uff1a\u7528\u4e8e\u91cd\u547d\u540d\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u548c\u5217\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>DML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09<\/li>\n<\/ol>\n\n\n\n<p>DML\u662f\u7528\u4e8e\u5bf9\u8868\u4e2d\u6570\u636e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff08\u5982\u63d2\u5165\u3001\u66f4\u65b0\u3001\u5220\u9664\u548c\u67e5\u8be2\uff09\u7684SQL\u8bed\u53e5\u3002DML\u8bed\u53e5\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SELECT\uff1a\u7528\u4e8e\u4ece\u4e00\u4e2a\u6216\u591a\u4e2a\u8868\u4e2d\u68c0\u7d22\u6570\u636e\u3002<\/li>\n\n\n\n<li>INSERT\uff1a\u7528\u4e8e\u5411\u8868\u4e2d\u63d2\u5165\u6570\u636e\u3002<\/li>\n\n\n\n<li>UPDATE\uff1a\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>DELETE\uff1a\u7528\u4e8e\u4ece\u8868\u4e2d\u5220\u9664\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>DCL\uff08\u6570\u636e\u63a7\u5236\u8bed\u8a00\uff09<\/li>\n<\/ol>\n\n\n\n<p>DCL\u662f\u7528\u4e8e\u63a7\u5236\u7528\u6237\u8bbf\u95ee\u6570\u636e\u5e93\u7684SQL\u8bed\u53e5\u3002DCL\u8bed\u53e5\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GRANT\uff1a\u7528\u4e8e\u6388\u4e88\u7528\u6237\u6216\u89d2\u8272\u8bbf\u95ee\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u6743\u9650\u3002<\/li>\n\n\n\n<li>REVOKE\uff1a\u7528\u4e8e\u64a4\u9500\u7528\u6237\u6216\u89d2\u8272\u8bbf\u95ee\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u6743\u9650\u3002<\/li>\n\n\n\n<li>DENY\uff1a\u7528\u4e8e\u62d2\u7edd\u7528\u6237\u6216\u89d2\u8272\u8bbf\u95ee\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u6743\u9650\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0cSQL\u8bed\u8a00\u6709\u4e09\u79cd\u57fa\u672c\u7c7b\u578b\u7684SQL\u8bed\u53e5\uff1aDDL\u3001DML\u548cDCL\u3002DDL\u8bed\u53e5\u7528\u4e8e\u521b\u5efa\u3001\u4fee\u6539\u548c\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\uff0cDML\u8bed\u53e5\u7528\u4e8e\u5bf9\u8868\u4e2d\u6570\u636e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff0cDCL\u8bed\u53e5\u7528\u4e8e\u63a7\u5236\u7528\u6237\u8bbf\u95ee\u6570\u636e\u5e93\u3002\u719f\u7ec3\u638c\u63e1\u8fd9\u4e9bSQL\u8bed\u53e5\u7c7b\u578b\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u5173\u7cfb\u578b\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caDDL<\/p>\n\n\n\n<p>DDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u521b\u5efa\u3001\u4fee\u6539\u548c\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\u7684SQL\u8bed\u8a00\u3002DDL\u8bed\u53e5\u7528\u4e8e\u5b9a\u4e49\u6570\u636e\u5e93\u7ed3\u6784\u548c\u6a21\u5f0f\uff0c\u5e76\u5305\u62ec\u521b\u5efa\u3001\u5220\u9664\u3001\u4fee\u6539\u8868\u3001\u7d22\u5f15\u3001\u89c6\u56fe\u548c\u5176\u4ed6\u6570\u636e\u5e93\u5bf9\u8c61\u7b49\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662fDDL\u7684\u4e00\u4e9b\u5e38\u89c1\u8bed\u53e5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>CREATE<\/li>\n<\/ol>\n\n\n\n<p>CREATE\u8bed\u53e5\u7528\u4e8e\u521b\u5efa\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u3001\u7d22\u5f15\u548c\u89c6\u56fe\u7b49\u3002\u521b\u5efa\u5bf9\u8c61\u65f6\u9700\u8981\u6307\u5b9a\u5bf9\u8c61\u7684\u540d\u79f0\u548c\u5404\u4e2a\u5217\u7684\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\u7b49\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u8868\u7684CREATE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE employees (\n  id INT PRIMARY KEY,\n  name VARCHAR(50) NOT NULL,\n  age INT,\n  salary DECIMAL(10,2)\n);\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>ALTER<\/li>\n<\/ol>\n\n\n\n<p>ALTER\u8bed\u53e5\u7528\u4e8e\u4fee\u6539\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u7ed3\u6784\uff0c\u5982\u8868\u7ed3\u6784\u3001\u7d22\u5f15\u548c\u7ea6\u675f\u7b49\u3002\u4fee\u6539\u64cd\u4f5c\u5305\u62ec\u6dfb\u52a0\u3001\u5220\u9664\u548c\u4fee\u6539\u5217\u3001\u7ea6\u675f\u3001\u7d22\u5f15\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4fee\u6539\u8868\u7ed3\u6784\u7684ALTER\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>ALTER TABLE employees\nADD COLUMN department VARCHAR(50) NOT NULL;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>DROP<\/li>\n<\/ol>\n\n\n\n<p>DROP\u8bed\u53e5\u7528\u4e8e\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u3001\u7d22\u5f15\u548c\u89c6\u56fe\u7b49\u3002\u5220\u9664\u64cd\u4f5c\u5c06\u5b8c\u5168\u5220\u9664\u5bf9\u8c61\u53ca\u5176\u6570\u636e\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5220\u9664\u8868\u7684DROP\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DROP TABLE employees;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>TRUNCATE<\/li>\n<\/ol>\n\n\n\n<p>TRUNCATE\u8bed\u53e5\u7528\u4e8e\u5220\u9664\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u4f46\u4e0d\u5220\u9664\u8868\u672c\u8eab\u3002TRUNCATE\u64cd\u4f5c\u5c06\u5220\u9664\u6240\u6709\u884c\uff0c\u4f46\u4e0d\u4f1a\u5220\u9664\u8868\u7ed3\u6784\u3001\u7d22\u5f15\u6216\u5176\u4ed6\u5bf9\u8c61\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aTRUNCATE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>TRUNCATE TABLE employees;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>RENAME<\/li>\n<\/ol>\n\n\n\n<p>RENAME\u8bed\u53e5\u7528\u4e8e\u91cd\u547d\u540d\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u548c\u5217\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u91cd\u547d\u540d\u8868\u7684RENAME\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>RENAME TABLE employees TO staff;\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cDDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff09\u662f\u7528\u4e8e\u521b\u5efa\u3001\u4fee\u6539\u548c\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\u7684SQL\u8bed\u8a00\u3002DDL\u8bed\u53e5\u5305\u62ecCREATE\u3001ALTER\u3001DROP\u3001TRUNCATE\u548cRENAME\u7b49\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5b9a\u4e49\u6570\u636e\u5e93\u7ed3\u6784\u548c\u6a21\u5f0f\u3002\u719f\u7ec3\u638c\u63e1DDL\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u8f7b\u677e\u5730\u521b\u5efa\u3001\u4fee\u6539\u548c\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u4ece\u800c\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u5173\u7cfb\u578b\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caDML<\/p>\n\n\n\n<p>DML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u5bf9\u8868\u4e2d\u6570\u636e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff08\u5982\u63d2\u5165\u3001\u66f4\u65b0\u3001\u5220\u9664\u548c\u67e5\u8be2\uff09\u7684SQL\u8bed\u8a00\u3002DML\u8bed\u53e5\u7528\u4e8e\u5904\u7406\u8868\u4e2d\u7684\u6570\u636e\uff0c\u5305\u62ec\u6dfb\u52a0\u3001\u4fee\u6539\u3001\u5220\u9664\u548c\u67e5\u8be2\u6570\u636e\u7b49\u3002\u4ee5\u4e0b\u662fDML\u7684\u4e00\u4e9b\u5e38\u89c1\u8bed\u53e5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>SELECT<\/li>\n<\/ol>\n\n\n\n<p>SELECT\u8bed\u53e5\u7528\u4e8e\u4ece\u4e00\u4e2a\u6216\u591a\u4e2a\u8868\u4e2d\u68c0\u7d22\u6570\u636e\u3002SELECT\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT column1, column2, ... FROM table_name WHERE condition;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u68c0\u7d22\u7684\u5217\uff0ctable_name\u662f\u8981\u68c0\u7d22\u7684\u8868\uff0ccondition\u662f\u7b5b\u9009\u68c0\u7d22\u7ed3\u679c\u7684\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aSELECT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT name, age, salary FROM employees WHERE department = 'IT';\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>INSERT<\/li>\n<\/ol>\n\n\n\n<p>INSERT\u8bed\u53e5\u7528\u4e8e\u5411\u8868\u4e2d\u63d2\u5165\u65b0\u6570\u636e\u3002INSERT\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...);\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ctable_name\u662f\u8981\u63d2\u5165\u6570\u636e\u7684\u8868\u540d\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u63d2\u5165\u7684\u5217\uff0cvalue1\u3001value2\u7b49\u662f\u8981\u63d2\u5165\u7684\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aINSERT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT INTO employees (name, age, salary, department) VALUES ('John', 25, 5000, 'HR');\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>UPDATE<\/li>\n<\/ol>\n\n\n\n<p>UPDATE\u8bed\u53e5\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u7684\u6570\u636e\u3002UPDATE\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ctable_name\u662f\u8981\u66f4\u65b0\u7684\u8868\u540d\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u66f4\u65b0\u7684\u5217\uff0cvalue1\u3001value2\u7b49\u662f\u8981\u66f4\u65b0\u7684\u503c\uff0ccondition\u662f\u7b5b\u9009\u8981\u66f4\u65b0\u7684\u884c\u7684\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aUPDATE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>UPDATE employees SET salary = 6000 WHERE name = 'John';\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>DELETE<\/li>\n<\/ol>\n\n\n\n<p>DELETE\u8bed\u53e5\u7528\u4e8e\u4ece\u8868\u4e2d\u5220\u9664\u6570\u636e\u3002DELETE\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DELETE FROM table_name WHERE condition;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ctable_name\u662f\u8981\u5220\u9664\u6570\u636e\u7684\u8868\u540d\uff0ccondition\u662f\u7b5b\u9009\u8981\u5220\u9664\u7684\u884c\u7684\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aDELETE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DELETE FROM employees WHERE department = 'HR';\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cDML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09\u662f\u7528\u4e8e\u5bf9\u8868\u4e2d\u6570\u636e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\u7684SQL\u8bed\u8a00\u3002DML\u8bed\u53e5\u5305\u62ecSELECT\u3001INSERT\u3001UPDATE\u548cDELETE\u7b49\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u6dfb\u52a0\u3001\u4fee\u6539\u3001\u5220\u9664\u548c\u67e5\u8be2\u6570\u636e\u3002\u719f\u7ec3\u638c\u63e1DML\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u8f7b\u677e\u5730\u5904\u7406\u8868\u4e2d\u7684\u6570\u636e\uff0c\u4ece\u800c\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u5173\u7cfb\u578b\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caDCL<\/p>\n\n\n\n<p>DCL\uff08\u6570\u636e\u63a7\u5236\u8bed\u8a00\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u63a7\u5236\u7528\u6237\u8bbf\u95ee\u6570\u636e\u5e93\u7684SQL\u8bed\u8a00\u3002DCL\u8bed\u53e5\u7528\u4e8e\u6388\u6743\u548c\u64a4\u9500\u7528\u6237\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u4ee5\u53ca\u63a7\u5236\u6570\u636e\u5b89\u5168\u6027\u7b49\u65b9\u9762\u3002\u4ee5\u4e0b\u662fDCL\u7684\u4e00\u4e9b\u5e38\u89c1\u8bed\u53e5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>GRANT<\/li>\n<\/ol>\n\n\n\n<p>GRANT\u8bed\u53e5\u7528\u4e8e\u6388\u4e88\u7528\u6237\u6216\u89d2\u8272\u8bbf\u95ee\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u6743\u9650\u3002GRANT\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>GRANT permission ON object TO user;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cpermission\u662f\u8981\u6388\u4e88\u7684\u6743\u9650\uff0cobject\u662f\u8981\u6388\u4e88\u6743\u9650\u7684\u5bf9\u8c61\uff08\u5982\u8868\u3001\u89c6\u56fe\u548c\u5b58\u50a8\u8fc7\u7a0b\uff09\uff0cuser\u662f\u8981\u6388\u4e88\u6743\u9650\u7684\u7528\u6237\u6216\u89d2\u8272\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aGRANT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>GRANT SELECT, INSERT ON employees TO user1;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>REVOKE<\/li>\n<\/ol>\n\n\n\n<p>REVOKE\u8bed\u53e5\u7528\u4e8e\u64a4\u9500\u7528\u6237\u6216\u89d2\u8272\u8bbf\u95ee\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u6743\u9650\u3002REVOKE\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>REVOKE permission ON object FROM user;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cpermission\u662f\u8981\u64a4\u9500\u7684\u6743\u9650\uff0cobject\u662f\u8981\u64a4\u9500\u6743\u9650\u7684\u5bf9\u8c61\uff08\u5982\u8868\u3001\u89c6\u56fe\u548c\u5b58\u50a8\u8fc7\u7a0b\uff09\uff0cuser\u662f\u8981\u64a4\u9500\u6743\u9650\u7684\u7528\u6237\u6216\u89d2\u8272\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aREVOKE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>REVOKE SELECT, INSERT ON employees FROM user1;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>DENY<\/li>\n<\/ol>\n\n\n\n<p>DENY\u8bed\u53e5\u7528\u4e8e\u62d2\u7edd\u7528\u6237\u6216\u89d2\u8272\u8bbf\u95ee\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u6743\u9650\u3002DENY\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>DENY permission ON object TO user;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cpermission\u662f\u8981\u62d2\u7edd\u7684\u6743\u9650\uff0cobject\u662f\u8981\u62d2\u7edd\u6743\u9650\u7684\u5bf9\u8c61\uff08\u5982\u8868\u3001\u89c6\u56fe\u548c\u5b58\u50a8\u8fc7\u7a0b\uff09\uff0cuser\u662f\u8981\u62d2\u7edd\u6743\u9650\u7684\u7528\u6237\u6216\u89d2\u8272\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aDENY\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>DENY SELECT, INSERT ON employees TO user1;\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cDCL\uff08\u6570\u636e\u63a7\u5236\u8bed\u8a00\uff09\u662f\u7528\u4e8e\u63a7\u5236\u7528\u6237\u8bbf\u95ee\u6570\u636e\u5e93\u7684SQL\u8bed\u8a00\u3002DCL\u8bed\u53e5\u5305\u62ecGRANT\u3001REVOKE\u548cDENY\u7b49\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u63a7\u5236\u6570\u636e\u5b89\u5168\u6027\u548c\u6743\u9650\u7ba1\u7406\u3002\u719f\u7ec3\u638c\u63e1DCL\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u5173\u7cfb\u578b\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caCREATE DATABASE\u8bed\u53e5<\/p>\n\n\n\n<p>CREATE DATABASE\u8bed\u53e5\u662fDDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff09\u7684\u4e00\u79cd\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u636e\u5e93\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u65b0\u6570\u636e\u5e93\u7684\u540d\u79f0\u548c\u53ef\u9009\u7684\u4e00\u4e9b\u53c2\u6570\uff0c\u4f8b\u5982\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u7b49\u3002\u4ee5\u4e0b\u662fCREATE DATABASE\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE DATABASE database_name\n[CHARACTER SET charset_name]\n[COLLATE collation_name];\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cdatabase_name\u662f\u8981\u521b\u5efa\u7684\u6570\u636e\u5e93\u7684\u540d\u79f0\uff0cCHARACTER SET\u662f\u53ef\u9009\u7684\uff0c\u6307\u5b9a\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\uff0cCOLLATE\u4e5f\u662f\u53ef\u9009\u7684\uff0c\u6307\u5b9a\u6570\u636e\u5e93\u7684\u6392\u5e8f\u89c4\u5219\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u540d\u4e3amydb\u7684\u6570\u636e\u5e93\u7684CREATE DATABASE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE DATABASE mydb;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3amydb\u7684\u6570\u636e\u5e93\uff0c\u4f7f\u7528\u9ed8\u8ba4\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u57fa\u672c\u8bed\u6cd5\u4e4b\u5916\uff0cCREATE DATABASE\u8bed\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u6570\u636e\u5e93\u7684\u5c5e\u6027\u548c\u53c2\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9009\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IF NOT EXISTS\uff1a\u6307\u5b9a\u5982\u679c\u6570\u636e\u5e93\u5df2\u7ecf\u5b58\u5728\uff0c\u5219\u4e0d\u521b\u5efa\u65b0\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n<li>DEFAULT CHARACTER SET\uff1a\u6307\u5b9a\u6570\u636e\u5e93\u7684\u9ed8\u8ba4\u5b57\u7b26\u96c6\u3002<\/li>\n\n\n\n<li>DEFAULT COLLATE\uff1a\u6307\u5b9a\u6570\u636e\u5e93\u7684\u9ed8\u8ba4\u6392\u5e8f\u89c4\u5219\u3002<\/li>\n\n\n\n<li>DATA DIRECTORY\uff1a\u6307\u5b9a\u6570\u636e\u5e93\u6587\u4ef6\u7684\u5b58\u50a8\u8def\u5f84\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u540d\u4e3amydb\u7684\u6570\u636e\u5e93\uff0c\u4f7f\u7528UTF8\u5b57\u7b26\u96c6\u548c\u9ed8\u8ba4\u7684\u6392\u5e8f\u89c4\u5219\u7684CREATE DATABASE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE DATABASE mydb\nDEFAULT CHARACTER SET utf8;\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cCREATE DATABASE\u8bed\u53e5\u662f\u7528\u4e8e\u521b\u5efa\u65b0\u7684\u6570\u636e\u5e93\u7684SQL\u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u521b\u5efa\u7684\u6570\u636e\u5e93\u7684\u540d\u79f0\u548c\u53ef\u9009\u7684\u4e00\u4e9b\u53c2\u6570\uff0c\u4f8b\u5982\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u7b49\u3002\u719f\u7ec3\u638c\u63e1CREATE DATABASE\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u521b\u5efa\u548c\u7ba1\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caCREATE TABLE\u8bed\u53e5<\/p>\n\n\n\n<p>CREATE TABLE\u8bed\u53e5\u662fDDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff09\u7684\u4e00\u79cd\uff0c\u7528\u4e8e\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u65b0\u7684\u8868\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u65b0\u8868\u7684\u540d\u79f0\u3001\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u957f\u5ea6\u3001\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u7b49\u4fe1\u606f\u3002\u4ee5\u4e0b\u662fCREATE TABLE\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>CREATE TABLE table_name (\n  column1 datatype(length) constraint,\n  column2 datatype(length) constraint,\n  ...\n  column_n datatype(length) constraint\n);\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ctable_name\u662f\u8981\u521b\u5efa\u7684\u8868\u7684\u540d\u79f0\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u521b\u5efa\u7684\u5217\u7684\u540d\u79f0\uff0cdatatype\u662f\u5217\u7684\u6570\u636e\u7c7b\u578b\uff0clength\u662f\u6570\u636e\u7c7b\u578b\u7684\u957f\u5ea6\uff0cconstraint\u662f\u5217\u7684\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u540d\u4e3aemployees\u7684\u8868\u7684CREATE TABLE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE employees (\n  id INT PRIMARY KEY,\n  name VARCHAR(50) NOT NULL,\n  age INT,\n  salary DECIMAL(10,2),\n  hire_date DATE DEFAULT CURRENT_DATE,\n  department VARCHAR(50) DEFAULT 'IT'\n);\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aemployees\u7684\u8868\uff0c\u5305\u62ecid\u3001name\u3001age\u3001salary\u3001hire_date\u548cdepartment\u516d\u4e2a\u5217\u3002\u5176\u4e2d\uff0cid\u5217\u4f5c\u4e3a\u4e3b\u952e\uff0cname\u5217\u4e0d\u5141\u8bb8\u4e3a\u7a7a\uff0chire_date\u5217\u9ed8\u8ba4\u4e3a\u5f53\u524d\u65e5\u671f\uff0cdepartment\u5217\u9ed8\u8ba4\u4e3a&#8217;IT&#8217;\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u57fa\u672c\u8bed\u6cd5\u4e4b\u5916\uff0cCREATE TABLE\u8bed\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u8868\u7684\u5c5e\u6027\u548c\u53c2\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9009\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>UNIQUE\uff1a\u6307\u5b9a\u5217\u7684\u503c\u5fc5\u987b\u662f\u552f\u4e00\u7684\u3002<\/li>\n\n\n\n<li>CHECK\uff1a\u6307\u5b9a\u5217\u7684\u503c\u5fc5\u987b\u6ee1\u8db3\u67d0\u4e9b\u6761\u4ef6\u3002<\/li>\n\n\n\n<li>FOREIGN KEY\uff1a\u6307\u5b9a\u5217\u4f5c\u4e3a\u53e6\u4e00\u4e2a\u8868\u7684\u5916\u952e\u3002<\/li>\n\n\n\n<li>DEFAULT\uff1a\u6307\u5b9a\u5217\u7684\u9ed8\u8ba4\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u540d\u4e3aorders\u7684\u8868\uff0c\u5305\u62ecid\u3001product\u3001quantity\u548ccustomer\u56db\u4e2a\u5217\uff0c\u5e76\u4e14product\u5217\u7684\u503c\u5fc5\u987b\u662f\u552f\u4e00\u7684\u7684CREATE TABLE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE orders (\n  id INT PRIMARY KEY,\n  product VARCHAR(50) UNIQUE,\n  quantity INT CHECK(quantity &gt; 0),\n  customer VARCHAR(50) DEFAULT 'Unknown'\n);\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cCREATE TABLE\u8bed\u53e5\u662f\u7528\u4e8e\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u65b0\u8868\u7684SQL\u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u521b\u5efa\u7684\u8868\u7684\u540d\u79f0\u3001\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u957f\u5ea6\u3001\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u7b49\u4fe1\u606f\u3002\u719f\u7ec3\u638c\u63e1CREATE TABLE\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u521b\u5efa\u548c\u7ba1\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u8868\u7ed3\u6784\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f<\/p>\n\n\n\n<p>\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\u662f\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u4e24\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u7528\u4e8e\u5b9a\u4e49\u8868\u4e2d\u7684\u5217\u548c\u9650\u5236\u6570\u636e\u7684\u8f93\u5165\u548c\u66f4\u65b0\u3002\u4ee5\u4e0b\u662f\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u7c7b\u578b<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u636e\u7c7b\u578b\u662f\u7528\u4e8e\u5b9a\u4e49\u5217\u4e2d\u6570\u636e\u7c7b\u578b\u7684\u89c4\u8303\u3002\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\uff0c\u6bcf\u4e2a\u5217\u5fc5\u987b\u5177\u6709\u4e00\u4e2a\u7279\u5b9a\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4ee5\u4fbf\u5b58\u50a8\u3001\u64cd\u4f5c\u548c\u68c0\u7d22\u6570\u636e\u3002\u5e38\u89c1\u7684\u6570\u636e\u7c7b\u578b\u5305\u62ec\u6574\u6570\u3001\u5b57\u7b26\u3001\u65e5\u671f\u3001\u6d6e\u70b9\u6570\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>INT\uff1a\u6574\u6570\u7c7b\u578b\uff0c\u901a\u5e38\u7528\u4e8e\u8868\u793a\u6570\u91cf\u548c\u8ba1\u6570\u7b49\u3002<\/li>\n\n\n\n<li>VARCHAR\uff1a\u53ef\u53d8\u957f\u5ea6\u7684\u5b57\u7b26\u4e32\u7c7b\u578b\uff0c\u901a\u5e38\u7528\u4e8e\u8868\u793a\u6587\u672c\u548c\u5b57\u7b26\u6570\u636e\u3002<\/li>\n\n\n\n<li>DECIMAL\uff1a\u7cbe\u786e\u7684\u5c0f\u6570\u7c7b\u578b\uff0c\u901a\u5e38\u7528\u4e8e\u8868\u793a\u8d27\u5e01\u548c\u91d1\u878d\u6570\u636e\u7b49\u3002<\/li>\n\n\n\n<li>DATE\uff1a\u65e5\u671f\u7c7b\u578b\uff0c\u901a\u5e38\u7528\u4e8e\u8868\u793a\u65e5\u5386\u65e5\u671f\u3002<\/li>\n\n\n\n<li>TIME\uff1a\u65f6\u95f4\u7c7b\u578b\uff0c\u901a\u5e38\u7528\u4e8e\u8868\u793a\u65f6\u949f\u65f6\u95f4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aCREATE TABLE\u8bed\u53e5\u4e2d\u5b9a\u4e49\u7684\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE employees (\n  id INT PRIMARY KEY,\n  name VARCHAR(50) NOT NULL,\n  age INT,\n  salary DECIMAL(10,2),\n  hire_date DATE DEFAULT CURRENT_DATE\n);\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u7ea6\u675f<\/li>\n<\/ol>\n\n\n\n<p>\u7ea6\u675f\u662f\u7528\u4e8e\u9650\u5236\u6570\u636e\u8f93\u5165\u548c\u66f4\u65b0\u7684\u89c4\u5219\u3002\u7ea6\u675f\u89c4\u5b9a\u4e86\u7279\u5b9a\u5217\u4e2d\u7684\u6570\u636e\u5fc5\u987b\u6ee1\u8db3\u67d0\u4e9b\u6761\u4ef6\uff0c\u4f8b\u5982\u4e0d\u80fd\u4e3aNULL\u3001\u5fc5\u987b\u552f\u4e00\u3001\u5fc5\u987b\u5728\u67d0\u4e2a\u8303\u56f4\u5185\u7b49\u3002\u5e38\u89c1\u7684\u7ea6\u675f\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NOT NULL\uff1a\u6307\u5b9a\u5217\u4e2d\u7684\u503c\u4e0d\u80fd\u4e3aNULL\u3002<\/li>\n\n\n\n<li>PRIMARY KEY\uff1a\u6307\u5b9a\u5217\u4f5c\u4e3a\u8868\u7684\u4e3b\u952e\u3002<\/li>\n\n\n\n<li>UNIQUE\uff1a\u6307\u5b9a\u5217\u4e2d\u7684\u503c\u5fc5\u987b\u662f\u552f\u4e00\u7684\u3002<\/li>\n\n\n\n<li>CHECK\uff1a\u6307\u5b9a\u5217\u7684\u503c\u5fc5\u987b\u6ee1\u8db3\u67d0\u4e9b\u6761\u4ef6\u3002<\/li>\n\n\n\n<li>FOREIGN KEY\uff1a\u6307\u5b9a\u5217\u4f5c\u4e3a\u53e6\u4e00\u4e2a\u8868\u7684\u5916\u952e\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aCREATE TABLE\u8bed\u53e5\u4e2d\u5b9a\u4e49\u7684\u7ea6\u675f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE orders (\n  id INT PRIMARY KEY,\n  product VARCHAR(50) UNIQUE,\n  quantity INT CHECK(quantity &gt; 0),\n  customer VARCHAR(50) DEFAULT 'Unknown'\n);\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u4e2d\uff0cid\u5217\u4f5c\u4e3a\u4e3b\u952e\u3001product\u5217\u7684\u503c\u5fc5\u987b\u662f\u552f\u4e00\u7684\u3001quantity\u5217\u7684\u503c\u5fc5\u987b\u5927\u4e8e0\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\u662f\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u4e24\u4e2a\u91cd\u8981\u6982\u5ff5\u3002\u6570\u636e\u7c7b\u578b\u7528\u4e8e\u5b9a\u4e49\u5217\u4e2d\u6570\u636e\u7c7b\u578b\u7684\u89c4\u8303\uff0c\u800c\u7ea6\u675f\u7528\u4e8e\u9650\u5236\u6570\u636e\u8f93\u5165\u548c\u66f4\u65b0\u7684\u89c4\u5219\u3002\u719f\u7ec3\u638c\u63e1\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u8868\u7ed3\u6784\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caINSERT\u8bed\u53e5<\/p>\n\n\n\n<p>INSERT\u8bed\u53e5\u662fDML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09\u7684\u4e00\u79cd\uff0c\u7528\u4e8e\u5c06\u6570\u636e\u63d2\u5165\u5230\u8868\u4e2d\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u63d2\u5165\u7684\u5217\u3001\u503c\u548c\u8868\u7684\u540d\u79f0\u7b49\u4fe1\u606f\u3002\u4ee5\u4e0b\u662fINSERT\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT INTO table_name (column1, column2, column3, ...)\nVALUES (value1, value2, value3, ...);\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ctable_name\u662f\u8981\u63d2\u5165\u6570\u636e\u7684\u8868\u7684\u540d\u79f0\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u63d2\u5165\u6570\u636e\u7684\u5217\u7684\u540d\u79f0\uff0cvalue1\u3001value2\u7b49\u662f\u8981\u63d2\u5165\u7684\u6570\u636e\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aINSERT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT INTO employees (id, name, age, salary, hire_date)\nVALUES (1, 'John', 30, 50000.00, '2021-01-01');\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u5728\u540d\u4e3aemployees\u7684\u8868\u4e2d\u63d2\u5165\u4e00\u884c\u6570\u636e\uff0c\u5305\u62ecid\u3001name\u3001age\u3001salary\u548chire_date\u4e94\u4e2a\u5217\u7684\u503c\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u57fa\u672c\u8bed\u6cd5\u4e4b\u5916\uff0cINSERT\u8bed\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u6570\u636e\u7684\u63d2\u5165\u65b9\u5f0f\u548c\u5c5e\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9009\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>INTO table_name\uff1a\u6307\u5b9a\u8981\u63d2\u5165\u6570\u636e\u7684\u8868\u7684\u540d\u79f0\u3002<\/li>\n\n\n\n<li>VALUES\uff1a\u6307\u5b9a\u8981\u63d2\u5165\u7684\u6570\u636e\u503c\u3002<\/li>\n\n\n\n<li>SET\uff1a\u6307\u5b9a\u8981\u63d2\u5165\u7684\u6570\u636e\u5217\u548c\u503c\u3002<\/li>\n\n\n\n<li>ON DUPLICATE KEY UPDATE\uff1a\u6307\u5b9a\u5982\u679c\u63d2\u5165\u7684\u6570\u636e\u8fdd\u53cd\u4e86\u552f\u4e00\u6027\u7ea6\u675f\uff0c\u5982\u4f55\u66f4\u65b0\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528SET\u9009\u9879\u63d2\u5165\u6570\u636e\u7684INSERT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT INTO employees\nSET id=2, name='Jane', age=25, salary=60000.00, hire_date='2021-02-01';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u5728\u540d\u4e3aemployees\u7684\u8868\u4e2d\u63d2\u5165\u4e00\u884c\u6570\u636e\uff0c\u5305\u62ecid\u3001name\u3001age\u3001salary\u548chire_date\u4e94\u4e2a\u5217\u7684\u503c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cINSERT\u8bed\u53e5\u662f\u7528\u4e8e\u5c06\u6570\u636e\u63d2\u5165\u5230\u8868\u4e2d\u7684SQL\u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u63d2\u5165\u7684\u5217\u3001\u503c\u548c\u8868\u7684\u540d\u79f0\u7b49\u4fe1\u606f\u3002\u719f\u7ec3\u638c\u63e1INSERT\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5411\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u63d2\u5165\u6570\u636e\uff0c\u5b9e\u73b0\u6570\u636e\u7684\u6301\u4e45\u5316\u5b58\u50a8\u548c\u7ba1\u7406\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caSELECT\u8bed\u53e5<\/p>\n\n\n\n<p>SELECT\u8bed\u53e5\u662fSQL\u4e2d\u6700\u5e38\u7528\u7684\u8bed\u53e5\u4e4b\u4e00\uff0c\u7528\u4e8e\u4ece\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u68c0\u7d22\u7684\u5217\u3001\u8868\u548c\u6761\u4ef6\u7b49\u4fe1\u606f\u3002\u4ee5\u4e0b\u662fSELECT\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT column1, column2, ...\nFROM table_name\nWHERE condition;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u68c0\u7d22\u7684\u5217\u7684\u540d\u79f0\uff0ctable_name\u662f\u8981\u68c0\u7d22\u6570\u636e\u7684\u8868\u7684\u540d\u79f0\uff0ccondition\u662f\u68c0\u7d22\u6570\u636e\u7684\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aSELECT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT id, name, age, salary\nFROM employees\nWHERE age &gt; 25;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4ece\u540d\u4e3aemployees\u7684\u8868\u4e2d\u68c0\u7d22\u51fa\u6240\u6709\u5e74\u9f84\u5927\u4e8e25\u5c81\u7684\u5458\u5de5\u7684id\u3001name\u3001age\u548csalary\u56db\u4e2a\u5217\u7684\u503c\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u57fa\u672c\u8bed\u6cd5\u4e4b\u5916\uff0cSELECT\u8bed\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u68c0\u7d22\u6570\u636e\u7684\u65b9\u5f0f\u548c\u5c5e\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9009\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DISTINCT\uff1a\u6307\u5b9a\u68c0\u7d22\u6570\u636e\u7684\u552f\u4e00\u503c\u3002<\/li>\n\n\n\n<li>ORDER BY\uff1a\u6307\u5b9a\u68c0\u7d22\u6570\u636e\u7684\u6392\u5e8f\u65b9\u5f0f\u3002<\/li>\n\n\n\n<li>GROUP BY\uff1a\u6307\u5b9a\u6309\u7167\u67d0\u4e9b\u5217\u5bf9\u68c0\u7d22\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u3002<\/li>\n\n\n\n<li>HAVING\uff1a\u6307\u5b9a\u5bf9\u5206\u7ec4\u540e\u7684\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528DISTINCT\u548cORDER BY\u9009\u9879\u68c0\u7d22\u6570\u636e\u7684SELECT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vbnetCopy code<code>SELECT DISTINCT department\nFROM employees\nORDER BY department;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4ece\u540d\u4e3aemployees\u7684\u8868\u4e2d\u68c0\u7d22\u51fa\u6240\u6709\u4e0d\u540c\u7684\u90e8\u95e8\u540d\u79f0\uff0c\u5e76\u6309\u7167\u5b57\u6bcd\u987a\u5e8f\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cSELECT\u8bed\u53e5\u662f\u7528\u4e8e\u4ece\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\u7684SQL\u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u68c0\u7d22\u7684\u5217\u3001\u8868\u548c\u6761\u4ef6\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u68c0\u7d22\u6570\u636e\u7684\u65b9\u5f0f\u548c\u5c5e\u6027\u3002\u719f\u7ec3\u638c\u63e1SELECT\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u68c0\u7d22\u548c\u5206\u6790\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caUPDATE\u8bed\u53e5<\/p>\n\n\n\n<p>UPDATE\u8bed\u53e5\u662fDML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09\u7684\u4e00\u79cd\uff0c\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u7684\u6570\u636e\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u66f4\u65b0\u7684\u5217\u3001\u503c\u548c\u6761\u4ef6\u7b49\u4fe1\u606f\u3002\u4ee5\u4e0b\u662fUPDATE\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>UPDATE table_name\nSET column1 = value1, column2 = value2, ...\nWHERE condition;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ctable_name\u662f\u8981\u66f4\u65b0\u6570\u636e\u7684\u8868\u7684\u540d\u79f0\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u66f4\u65b0\u6570\u636e\u7684\u5217\u7684\u540d\u79f0\uff0cvalue1\u3001value2\u7b49\u662f\u8981\u66f4\u65b0\u7684\u6570\u636e\u503c\uff0ccondition\u662f\u66f4\u65b0\u6570\u636e\u7684\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aUPDATE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>UPDATE employees\nSET salary = 55000.00\nWHERE name = 'John';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u540d\u4e3aemployees\u7684\u8868\u4e2d\u6240\u6709\u540d\u5b57\u4e3a&#8217;John&#8217;\u7684\u5458\u5de5\u7684salary\u5217\u7684\u503c\u66f4\u65b0\u4e3a55000.00\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u57fa\u672c\u8bed\u6cd5\u4e4b\u5916\uff0cUPDATE\u8bed\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u66f4\u65b0\u6570\u636e\u7684\u65b9\u5f0f\u548c\u5c5e\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9009\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ORDER BY\uff1a\u6307\u5b9a\u66f4\u65b0\u6570\u636e\u7684\u987a\u5e8f\u3002<\/li>\n\n\n\n<li>LIMIT\uff1a\u6307\u5b9a\u66f4\u65b0\u6570\u636e\u7684\u884c\u6570\u9650\u5236\u3002<\/li>\n\n\n\n<li>SET\uff1a\u6307\u5b9a\u8981\u66f4\u65b0\u7684\u6570\u636e\u5217\u548c\u503c\u3002<\/li>\n\n\n\n<li>JOIN\uff1a\u6307\u5b9a\u66f4\u65b0\u6570\u636e\u7684\u53e6\u4e00\u4e2a\u8868\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528SET\u9009\u9879\u66f4\u65b0\u6570\u636e\u7684UPDATE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>UPDATE employees\nSET age = age + 1, salary = salary * 1.1\nWHERE department = 'IT';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u540d\u4e3aemployees\u7684\u8868\u4e2d\u6240\u6709\u90e8\u95e8\u4e3a&#8217;IT&#8217;\u7684\u5458\u5de5\u7684age\u5217\u7684\u503c\u589e\u52a01\uff0csalary\u5217\u7684\u503c\u589e\u52a010%\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cUPDATE\u8bed\u53e5\u662f\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u6570\u636e\u7684SQL\u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u66f4\u65b0\u7684\u5217\u3001\u503c\u548c\u6761\u4ef6\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u66f4\u65b0\u6570\u636e\u7684\u65b9\u5f0f\u548c\u5c5e\u6027\u3002\u719f\u7ec3\u638c\u63e1UPDATE\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u66f4\u597d\u5730\u66f4\u65b0\u548c\u7ba1\u7406\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caDELETE\u8bed\u53e5<\/p>\n\n\n\n<p>DELETE\u8bed\u53e5\u662fDML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09\u7684\u4e00\u79cd\uff0c\u7528\u4e8e\u4ece\u8868\u4e2d\u5220\u9664\u6570\u636e\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u5220\u9664\u7684\u884c\u3001\u8868\u548c\u6761\u4ef6\u7b49\u4fe1\u606f\u3002\u4ee5\u4e0b\u662fDELETE\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DELETE FROM table_name\nWHERE condition;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ctable_name\u662f\u8981\u5220\u9664\u6570\u636e\u7684\u8868\u7684\u540d\u79f0\uff0ccondition\u662f\u5220\u9664\u6570\u636e\u7684\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aDELETE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DELETE FROM employees\nWHERE age &lt; 25;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4ece\u540d\u4e3aemployees\u7684\u8868\u4e2d\u5220\u9664\u6240\u6709\u5e74\u9f84\u5c0f\u4e8e25\u5c81\u7684\u5458\u5de5\u7684\u6570\u636e\u884c\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u57fa\u672c\u8bed\u6cd5\u4e4b\u5916\uff0cDELETE\u8bed\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u5220\u9664\u6570\u636e\u7684\u65b9\u5f0f\u548c\u5c5e\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9009\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ORDER BY\uff1a\u6307\u5b9a\u5220\u9664\u6570\u636e\u7684\u987a\u5e8f\u3002<\/li>\n\n\n\n<li>LIMIT\uff1a\u6307\u5b9a\u5220\u9664\u6570\u636e\u7684\u884c\u6570\u9650\u5236\u3002<\/li>\n\n\n\n<li>TRUNCATE\uff1a\u6307\u5b9a\u5220\u9664\u6574\u4e2a\u8868\u4e2d\u7684\u6570\u636e\uff0c\u800c\u4e0d\u662f\u4ec5\u5220\u9664\u6570\u636e\u884c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528LIMIT\u9009\u9879\u5220\u9664\u6570\u636e\u7684DELETE\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DELETE FROM employees\nWHERE department = 'Sales'\nORDER BY salary DESC\nLIMIT 3;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4ece\u540d\u4e3aemployees\u7684\u8868\u4e2d\u5220\u9664\u90e8\u95e8\u4e3a&#8217;Sales&#8217;\u7684\u5458\u5de5\u4e2d\u5de5\u8d44\u6700\u9ad8\u7684\u4e09\u4e2a\u5458\u5de5\u7684\u6570\u636e\u884c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cDELETE\u8bed\u53e5\u662f\u7528\u4e8e\u4ece\u8868\u4e2d\u5220\u9664\u6570\u636e\u7684SQL\u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u6307\u5b9a\u4e86\u8981\u5220\u9664\u7684\u884c\u3001\u8868\u548c\u6761\u4ef6\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u53c2\u6570\u548c\u9009\u9879\u6765\u8bbe\u7f6e\u5220\u9664\u6570\u636e\u7684\u65b9\u5f0f\u548c\u5c5e\u6027\u3002\u719f\u7ec3\u638c\u63e1DELETE\u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u66f4\u597d\u5730\u5220\u9664\u548c\u7ba1\u7406\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4f7f\u7528\u7d22\u5f15\u67e5\u8be2\u4f18\u5316<\/p>\n\n\n\n<p>\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\uff0c\u7d22\u5f15\u662f\u7528\u4e8e\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u7684\u91cd\u8981\u5de5\u5177\u3002\u7d22\u5f15\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u901a\u8fc7\u63d0\u4f9b\u5feb\u901f\u8bbf\u95ee\u8868\u4e2d\u7684\u6570\u636e\u884c\uff0c\u4f7f\u67e5\u8be2\u66f4\u5feb\u901f\u5730\u6267\u884c\u3002\u4f7f\u7528\u7d22\u5f15\u67e5\u8be2\u4f18\u5316\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u5feb\u901f\u5730\u68c0\u7d22\u548c\u64cd\u4f5c\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528\u7d22\u5f15\u67e5\u8be2\u4f18\u5316\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efa\u7d22\u5f15<\/li>\n<\/ol>\n\n\n\n<p>\u9996\u5148\uff0c\u7528\u6237\u9700\u8981\u5728\u8868\u4e2d\u521b\u5efa\u7d22\u5f15\u3002\u901a\u5e38\uff0c\u4e3b\u952e\u5217\u548c\u5916\u952e\u5217\u90fd\u9700\u8981\u521b\u5efa\u7d22\u5f15\uff0c\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u52a0\u901f\u5173\u8054\u67e5\u8be2\u548c\u5b50\u67e5\u8be2\u7684\u6267\u884c\u3002\u6b64\u5916\uff0c\u7528\u6237\u53ef\u4ee5\u521b\u5efa\u552f\u4e00\u7d22\u5f15\u548c\u590d\u5408\u7d22\u5f15\u7b49\u6765\u8fdb\u4e00\u6b65\u4f18\u5316\u67e5\u8be2\u6027\u80fd\u3002\u5728\u521b\u5efa\u7d22\u5f15\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u7d22\u5f15\u7684\u7c7b\u578b\u548c\u5927\u5c0f\uff0c\u4ee5\u4fbf\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u7d22\u5f15\u7684\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>CREATE INDEX idx_name ON employees (name);\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u5728\u540d\u4e3aemployees\u7684\u8868\u7684name\u5217\u4e0a\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aidx_name\u7684\u7d22\u5f15\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4f7f\u7528EXPLAIN\u547d\u4ee4<\/li>\n<\/ol>\n\n\n\n<p>\u5176\u6b21\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528EXPLAIN\u547d\u4ee4\u6765\u5206\u6790\u67e5\u8be2\u7684\u6267\u884c\u8ba1\u5212\u3002\u8be5\u547d\u4ee4\u53ef\u4ee5\u663e\u793a\u67e5\u8be2\u8bed\u53e5\u7684\u6267\u884c\u987a\u5e8f\u3001\u4f7f\u7528\u7684\u7d22\u5f15\u548c\u67e5\u8be2\u7684\u6548\u7387\u7b49\u4fe1\u606f\uff0c\u5e2e\u52a9\u7528\u6237\u4f18\u5316\u67e5\u8be2\u3002\u901a\u8fc7\u5206\u6790EXPLAIN\u8f93\u51fa\u7ed3\u679c\uff0c\u7528\u6237\u53ef\u4ee5\u786e\u5b9a\u662f\u5426\u4f7f\u7528\u4e86\u7d22\u5f15\u548c\u5982\u4f55\u4f18\u5316\u67e5\u8be2\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528EXPLAIN\u547d\u4ee4\u67e5\u8be2\u7684\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>EXPLAIN SELECT *\nFROM employees\nWHERE department = 'IT';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2\u540d\u4e3aemployees\u7684\u8868\u4e2d\u6240\u6709\u90e8\u95e8\u4e3a&#8217;IT&#8217;\u7684\u5458\u5de5\u6570\u636e\u884c\uff0c\u5e76\u4f7f\u7528EXPLAIN\u547d\u4ee4\u5206\u6790\u67e5\u8be2\u7684\u6267\u884c\u8ba1\u5212\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u907f\u514d\u7d22\u5f15\u5931\u6548<\/li>\n<\/ol>\n\n\n\n<p>\u6700\u540e\uff0c\u7528\u6237\u9700\u8981\u6ce8\u610f\u907f\u514d\u7d22\u5f15\u5931\u6548\u3002\u5982\u679c\u67e5\u8be2\u6761\u4ef6\u4e0d\u7b26\u5408\u7d22\u5f15\u7684\u89c4\u8303\uff0c\u6216\u8005\u67e5\u8be2\u7684\u6570\u636e\u884c\u592a\u591a\uff0c\u7d22\u5f15\u53ef\u80fd\u4f1a\u5931\u6548\u3002\u6b64\u65f6\uff0c\u7528\u6237\u9700\u8981\u91cd\u65b0\u8bbe\u8ba1\u67e5\u8be2\u8bed\u53e5\u6216\u8005\u4f18\u5316\u7d22\u5f15\u6765\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u7d22\u5f15\u5931\u6548\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT *\nFROM employees\nWHERE name LIKE '%J%';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2\u540d\u4e3aemployees\u7684\u8868\u4e2d\u6240\u6709\u540d\u5b57\u5305\u542b\u5b57\u6bcd&#8217;J&#8217;\u7684\u5458\u5de5\u6570\u636e\u884c\u3002\u7531\u4e8eLIKE\u64cd\u4f5c\u7b26\u4e0d\u7b26\u5408\u7d22\u5f15\u89c4\u8303\uff0c\u7d22\u5f15\u53ef\u80fd\u4f1a\u5931\u6548\uff0c\u5bfc\u81f4\u67e5\u8be2\u6548\u7387\u964d\u4f4e\u3002\u6b64\u65f6\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u67e5\u8be2\u65b9\u5f0f\u6216\u8005\u521b\u5efa\u5168\u6587\u7d22\u5f15\u6765\u4f18\u5316\u67e5\u8be2\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u4f7f\u7528\u7d22\u5f15\u67e5\u8be2\u4f18\u5316\u662f\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u4f18\u5316\u67e5\u8be2\u6027\u80fd\u7684\u91cd\u8981\u65b9\u6cd5\u3002\u7528\u6237\u53ef\u4ee5\u521b\u5efa\u7d22\u5f15\u3001\u4f7f\u7528EXPLAIN\u547d\u4ee4\u548c\u907f\u514d\u7d22\u5f15\u5931\u6548\u6765\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u719f\u7ec3\u638c\u63e1\u7d22\u5f15\u67e5\u8be2\u4f18\u5316\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5206\u6790\u67e5\u8be2\u6027\u80fd\uff08EXPLAIN\u8bed\u53e5\uff09<\/p>\n\n\n\n<p>\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\uff0c\u5206\u6790\u67e5\u8be2\u6027\u80fd\u662f\u4f18\u5316\u67e5\u8be2\u6548\u7387\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u4e3a\u4e86\u5e2e\u52a9\u7528\u6237\u4e86\u89e3\u67e5\u8be2\u7684\u6267\u884c\u8ba1\u5212\u548c\u6548\u7387\uff0cMySQL\u63d0\u4f9b\u4e86EXPLAIN\u8bed\u53e5\u3002EXPLAIN\u8bed\u53e5\u53ef\u4ee5\u663e\u793a\u67e5\u8be2\u8bed\u53e5\u7684\u6267\u884c\u987a\u5e8f\u3001\u4f7f\u7528\u7684\u7d22\u5f15\u548c\u67e5\u8be2\u7684\u6548\u7387\u7b49\u4fe1\u606f\uff0c\u5e2e\u52a9\u7528\u6237\u4f18\u5316\u67e5\u8be2\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528EXPLAIN\u8bed\u53e5\u5206\u6790\u67e5\u8be2\u6027\u80fd\u7684\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6784\u9020\u67e5\u8be2\u8bed\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\u9996\u5148\uff0c\u7528\u6237\u9700\u8981\u6784\u9020\u4e00\u4e2a\u67e5\u8be2\u8bed\u53e5\u3002\u53ef\u4ee5\u662fSELECT\u3001INSERT\u3001UPDATE\u6216DELETE\u8bed\u53e5\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aSELECT\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT *\nFROM employees\nWHERE department = 'IT';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2\u540d\u4e3aemployees\u7684\u8868\u4e2d\u6240\u6709\u90e8\u95e8\u4e3a&#8217;IT&#8217;\u7684\u5458\u5de5\u6570\u636e\u884c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6267\u884cEXPLAIN\u8bed\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\u5176\u6b21\uff0c\u7528\u6237\u9700\u8981\u5728\u67e5\u8be2\u8bed\u53e5\u524d\u52a0\u4e0aEXPLAIN\u5173\u952e\u5b57\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2aEXPLAIN\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>EXPLAIN SELECT *\nFROM employees\nWHERE department = 'IT';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4f7f\u7528EXPLAIN\u5173\u952e\u5b57\u5206\u6790\u67e5\u8be2\u540d\u4e3aemployees\u7684\u8868\u4e2d\u6240\u6709\u90e8\u95e8\u4e3a&#8217;IT&#8217;\u7684\u5458\u5de5\u6570\u636e\u884c\u7684\u6267\u884c\u8ba1\u5212\u548c\u6548\u7387\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u5206\u6790\u6267\u884c\u8ba1\u5212\u548c\u6548\u7387<\/li>\n<\/ol>\n\n\n\n<p>\u6700\u540e\uff0c\u7528\u6237\u9700\u8981\u5206\u6790EXPLAIN\u8f93\u51fa\u7ed3\u679c\uff0c\u4ee5\u4fbf\u4e86\u89e3\u67e5\u8be2\u7684\u6267\u884c\u8ba1\u5212\u548c\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2aEXPLAIN\u8f93\u51fa\u7ed3\u679c\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>id   select_type   table       partitions   type    possible_keys   key         key_len   ref    rows   filtered   Extra\n1    SIMPLE        employees   NULL         ref     department_idx department  13        const  100    100.00     Using index\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\u7ed3\u679c\u4e2d\u5305\u542b\u4ee5\u4e0b\u51e0\u4e2a\u5b57\u6bb5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>id\uff1a\u8868\u793a\u67e5\u8be2\u8bed\u53e5\u4e2d\u6bcf\u4e2a\u64cd\u4f5c\u7684\u7f16\u53f7\u3002<\/li>\n\n\n\n<li>select_type\uff1a\u8868\u793a\u67e5\u8be2\u7684\u7c7b\u578b\uff0c\u5305\u62ecSIMPLE\u3001PRIMARY\u3001SUBQUERY\u3001DERIVED\u3001UNION\u548cUNION RESULT\u7b49\u3002<\/li>\n\n\n\n<li>table\uff1a\u8868\u793a\u67e5\u8be2\u6d89\u53ca\u7684\u8868\u7684\u540d\u79f0\u3002<\/li>\n\n\n\n<li>partitions\uff1a\u8868\u793a\u6d89\u53ca\u7684\u5206\u533a\u540d\u79f0\u3002<\/li>\n\n\n\n<li>type\uff1a\u8868\u793a\u4f7f\u7528\u7684\u8bbf\u95ee\u7c7b\u578b\uff0c\u5305\u62ecALL\u3001index\u3001range\u3001ref\u548ceq_ref\u7b49\u3002<\/li>\n\n\n\n<li>possible_keys\uff1a\u8868\u793a\u53ef\u80fd\u4f7f\u7528\u7684\u7d22\u5f15\uff0c\u4ee5\u9017\u53f7\u5206\u9694\u3002<\/li>\n\n\n\n<li>key\uff1a\u8868\u793a\u5b9e\u9645\u4f7f\u7528\u7684\u7d22\u5f15\u3002<\/li>\n\n\n\n<li>key_len\uff1a\u8868\u793a\u7d22\u5f15\u7684\u957f\u5ea6\u3002<\/li>\n\n\n\n<li>ref\uff1a\u8868\u793a\u7d22\u5f15\u4e2d\u4f7f\u7528\u7684\u5217\u3002<\/li>\n\n\n\n<li>rows\uff1a\u8868\u793a\u626b\u63cf\u7684\u884c\u6570\u3002<\/li>\n\n\n\n<li>filtered\uff1a\u8868\u793a\u8fc7\u6ee4\u540e\u7684\u884c\u6570\u5360\u603b\u884c\u6570\u7684\u767e\u5206\u6bd4\u3002<\/li>\n\n\n\n<li>Extra\uff1a\u8868\u793a\u67e5\u8be2\u7684\u4e00\u4e9b\u989d\u5916\u4fe1\u606f\uff0c\u5982Using where\u3001Using temporary\u3001Using filesort\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u901a\u8fc7\u5206\u6790EXPLAIN\u8f93\u51fa\u7ed3\u679c\uff0c\u7528\u6237\u53ef\u4ee5\u786e\u5b9a\u67e5\u8be2\u8bed\u53e5\u7684\u6267\u884c\u8ba1\u5212\u548c\u6548\u7387\uff0c\u5e76\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u548c\u7d22\u5f15\u7b49\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u4f7f\u7528EXPLAIN\u8bed\u53e5\u5206\u6790\u67e5\u8be2\u6027\u80fd\u662f\u4f18\u5316\u67e5\u8be2\u6548\u7387\u7684\u91cd\u8981\u65b9\u6cd5\u3002\u7528\u6237\u53ef\u4ee5\u6784\u9020\u67e5\u8be2\u8bed\u53e5\uff0c\u6267\u884cEXPLAIN\u8bed\u53e5\u5e76\u5206\u6790\u8f93\u51fa\u7ed3\u679c\uff0c\u4ee5\u786e\u5b9a\u67e5\u8be2\u7684\u6267\u884c\u8ba1\u5212\u548c\u6548\u7387\uff0c\u5e76\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u548c\u7d22\u5f15\u7b49\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caCOUNT\uff0cSUM\uff0cAVG\uff0cMIN\uff0cMAX\u7b49\u805a\u5408\u51fd\u6570<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u805a\u5408\u51fd\u6570\u662f\u4e00\u7c7b\u53ef\u4ee5\u5bf9\u6570\u636e\u8fdb\u884c\u7edf\u8ba1\u548c\u8ba1\u7b97\u7684\u51fd\u6570\u3002\u5e38\u7528\u7684\u805a\u5408\u51fd\u6570\u5305\u62ecCOUNT\u3001SUM\u3001AVG\u3001MIN\u548cMAX\u7b49\u3002\u4ee5\u4e0b\u662f\u5bf9\u6bcf\u4e2a\u805a\u5408\u51fd\u6570\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>COUNT\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>COUNT\u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u8868\u4e2d\u6570\u636e\u884c\u7684\u6570\u91cf\u3002\u53ef\u4ee5\u4f7f\u7528\u901a\u914d\u7b26*\u6216\u8005\u6307\u5b9a\u5217\u540d\u4f5c\u4e3a\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528COUNT\u51fd\u6570\u7edf\u8ba1employees\u8868\u4e2d\u7684\u6570\u636e\u884c\u6570\u91cf\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT COUNT(*) FROM employees;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>SUM\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>SUM\u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u8868\u4e2d\u6570\u503c\u578b\u6570\u636e\u5217\u7684\u603b\u548c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528SUM\u51fd\u6570\u7edf\u8ba1employees\u8868\u4e2dsalary\u5217\u7684\u603b\u548c\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT SUM(salary) FROM employees;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>AVG\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>AVG\u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u8868\u4e2d\u6570\u503c\u578b\u6570\u636e\u5217\u7684\u5e73\u5747\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528AVG\u51fd\u6570\u7edf\u8ba1employees\u8868\u4e2dsalary\u5217\u7684\u5e73\u5747\u503c\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT AVG(salary) FROM employees;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>MIN\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>MIN\u51fd\u6570\u7528\u4e8e\u67e5\u627e\u8868\u4e2d\u6570\u503c\u578b\u6216\u5b57\u7b26\u578b\u6570\u636e\u5217\u7684\u6700\u5c0f\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528MIN\u51fd\u6570\u67e5\u627eemployees\u8868\u4e2dsalary\u5217\u7684\u6700\u5c0f\u503c\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT MIN(salary) FROM employees;\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>MAX\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>MAX\u51fd\u6570\u7528\u4e8e\u67e5\u627e\u8868\u4e2d\u6570\u503c\u578b\u6216\u5b57\u7b26\u578b\u6570\u636e\u5217\u7684\u6700\u5927\u503c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528MAX\u51fd\u6570\u67e5\u627eemployees\u8868\u4e2dsalary\u5217\u7684\u6700\u5927\u503c\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT MAX(salary) FROM employees;\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0c\u805a\u5408\u51fd\u6570\u662f\u7528\u4e8e\u5bf9\u6570\u636e\u8fdb\u884c\u7edf\u8ba1\u548c\u8ba1\u7b97\u7684\u51fd\u6570\u3002\u5e38\u7528\u7684\u805a\u5408\u51fd\u6570\u5305\u62ecCOUNT\u3001SUM\u3001AVG\u3001MIN\u548cMAX\u7b49\u3002\u901a\u8fc7\u4f7f\u7528\u805a\u5408\u51fd\u6570\uff0c\u7528\u6237\u53ef\u4ee5\u5bf9\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u5feb\u901f\u7684\u6c47\u603b\u548c\u7edf\u8ba1\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caGROUP BY\u5b50\u53e5<\/p>\n\n\n\n<p>GROUP BY\u5b50\u53e5\u662fMySQL\u4e2d\u7528\u4e8e\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u5206\u7ec4\u7684\u5173\u952e\u5b57\u3002\u901a\u8fc7GROUP BY\u5b50\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u6309\u7167\u4e00\u4e2a\u6216\u591a\u4e2a\u5217\u7684\u503c\u8fdb\u884c\u5206\u7ec4\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7edf\u8ba1\u548c\u8ba1\u7b97\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662fGROUP BY\u5b50\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT column1, column2, ..., columnN, aggregate_function(columnX)\nFROM table\nWHERE condition\nGROUP BY column1, column2, ..., columnN;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u67e5\u8be2\u7684\u5217\u540d\uff0caggregate_function(columnX)\u662f\u8981\u5e94\u7528\u7684\u805a\u5408\u51fd\u6570\uff0ctable\u662f\u8981\u67e5\u8be2\u7684\u8868\u7684\u540d\u79f0\uff0ccondition\u662f\u67e5\u8be2\u7684\u6761\u4ef6\uff0ccolumn1\u3001column2\u7b49\u662f\u5206\u7ec4\u7684\u5217\u540d\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528GROUP BY\u5b50\u53e5\u5bf9employees\u8868\u6309\u7167department\u5217\u8fdb\u884c\u5206\u7ec4\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT department, COUNT(*) FROM employees\nGROUP BY department;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2employees\u8868\u4e2d\u5404\u90e8\u95e8\u7684\u5458\u5de5\u6570\u91cf\uff0c\u5e76\u6309\u7167department\u5217\u8fdb\u884c\u5206\u7ec4\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u57fa\u672c\u8bed\u6cd5\u4e4b\u5916\uff0cGROUP BY\u5b50\u53e5\u8fd8\u53ef\u4ee5\u4f7f\u7528HAVING\u5b50\u53e5\u6765\u8fdb\u4e00\u6b65\u7b5b\u9009\u67e5\u8be2\u7ed3\u679c\u3002HAVING\u5b50\u53e5\u4e0eWHERE\u5b50\u53e5\u7c7b\u4f3c\uff0c\u53ef\u4ee5\u4f7f\u7528\u805a\u5408\u51fd\u6570\u548c\u903b\u8f91\u8fd0\u7b97\u7b26\u7b49\u6765\u6307\u5b9a\u7b5b\u9009\u6761\u4ef6\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528GROUP BY\u5b50\u53e5\u548cHAVING\u5b50\u53e5\u67e5\u8be2salary\u5927\u4e8e\u5e73\u5747\u503c\u7684\u5458\u5de5\u7684\u6570\u91cf\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT department, COUNT(*) FROM employees\nGROUP BY department\nHAVING AVG(salary) &gt; 5000;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2employees\u8868\u4e2d\u5404\u90e8\u95e8\u7684\u5458\u5de5\u6570\u91cf\uff0c\u5e76\u6309\u7167department\u5217\u8fdb\u884c\u5206\u7ec4\u3002\u7136\u540e\uff0c\u4f7f\u7528HAVING\u5b50\u53e5\u7b5b\u9009\u5e73\u5747\u5de5\u8d44\u5927\u4e8e5000\u7684\u90e8\u95e8\uff0c\u5e76\u7edf\u8ba1\u5404\u90e8\u95e8\u5458\u5de5\u7684\u6570\u91cf\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cGROUP BY\u5b50\u53e5\u662fMySQL\u4e2d\u7528\u4e8e\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u5206\u7ec4\u7684\u5173\u952e\u5b57\u3002\u901a\u8fc7GROUP BY\u5b50\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u6309\u7167\u4e00\u4e2a\u6216\u591a\u4e2a\u5217\u7684\u503c\u8fdb\u884c\u5206\u7ec4\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7edf\u8ba1\u548c\u8ba1\u7b97\u6570\u636e\u3002\u719f\u7ec3\u638c\u63e1GROUP BY\u5b50\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caHAVING\u5b50\u53e5<\/p>\n\n\n\n<p>HAVING\u5b50\u53e5\u662fMySQL\u4e2d\u7528\u4e8e\u5bf9GROUP BY\u5b50\u53e5\u5206\u7ec4\u540e\u7684\u7ed3\u679c\u8fdb\u884c\u7b5b\u9009\u7684\u5173\u952e\u5b57\u3002\u901a\u5e38\uff0cHAVING\u5b50\u53e5\u4e0eGROUP BY\u5b50\u53e5\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u4fbf\u6839\u636e\u5206\u7ec4\u7ed3\u679c\u8fdb\u4e00\u6b65\u7b5b\u9009\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662fHAVING\u5b50\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT column1, column2, ..., columnN, aggregate_function(columnX)\nFROM table\nWHERE condition\nGROUP BY column1, column2, ..., columnN\nHAVING condition;\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0ccolumn1\u3001column2\u7b49\u662f\u8981\u67e5\u8be2\u7684\u5217\u540d\uff0caggregate_function(columnX)\u662f\u8981\u5e94\u7528\u7684\u805a\u5408\u51fd\u6570\uff0ctable\u662f\u8981\u67e5\u8be2\u7684\u8868\u7684\u540d\u79f0\uff0ccondition\u662f\u67e5\u8be2\u7684\u6761\u4ef6\uff0ccolumn1\u3001column2\u7b49\u662f\u5206\u7ec4\u7684\u5217\u540d\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528GROUP BY\u5b50\u53e5\u548cHAVING\u5b50\u53e5\u67e5\u8be2\u5e73\u5747\u5de5\u8d44\u5927\u4e8e5000\u7684\u5458\u5de5\u6570\u91cf\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT department, COUNT(*) FROM employees\nGROUP BY department\nHAVING AVG(salary) &gt; 5000;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2employees\u8868\u4e2d\u5404\u90e8\u95e8\u7684\u5458\u5de5\u6570\u91cf\uff0c\u5e76\u6309\u7167department\u5217\u8fdb\u884c\u5206\u7ec4\u3002\u7136\u540e\uff0c\u4f7f\u7528HAVING\u5b50\u53e5\u7b5b\u9009\u5e73\u5747\u5de5\u8d44\u5927\u4e8e5000\u7684\u90e8\u95e8\uff0c\u5e76\u7edf\u8ba1\u5404\u90e8\u95e8\u5458\u5de5\u7684\u6570\u91cf\u3002<\/p>\n\n\n\n<p>\u4e0eWHERE\u5b50\u53e5\u4e0d\u540c\uff0cHAVING\u5b50\u53e5\u53ef\u4ee5\u4f7f\u7528\u805a\u5408\u51fd\u6570\u548c\u5206\u7ec4\u51fd\u6570\u6765\u7b5b\u9009\u6570\u636e\u3002\u5728HAVING\u5b50\u53e5\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528SUM\u3001COUNT\u3001AVG\u3001MIN\u548cMAX\u7b49\u805a\u5408\u51fd\u6570\u6765\u8ba1\u7b97\u5206\u7ec4\u7ed3\u679c\uff0c\u5e76\u4f7f\u7528\u903b\u8f91\u8fd0\u7b97\u7b26\u548c\u6bd4\u8f83\u8fd0\u7b97\u7b26\u7b49\u6765\u6307\u5b9a\u7b5b\u9009\u6761\u4ef6\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528HAVING\u5b50\u53e5\u67e5\u8be2\u5404\u90e8\u95e8\u5458\u5de5\u6570\u91cf\u5927\u4e8e3\u5e76\u4e14\u5e73\u5747\u5de5\u8d44\u5927\u4e8e5000\u7684\u90e8\u95e8\u540d\u79f0\u548c\u5e73\u5747\u5de5\u8d44\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT department, AVG(salary) FROM employees\nGROUP BY department\nHAVING COUNT(*) &gt; 3 AND AVG(salary) &gt; 5000;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2employees\u8868\u4e2d\u5404\u90e8\u95e8\u7684\u5e73\u5747\u5de5\u8d44\uff0c\u5e76\u6309\u7167department\u5217\u8fdb\u884c\u5206\u7ec4\u3002\u7136\u540e\uff0c\u4f7f\u7528HAVING\u5b50\u53e5\u7b5b\u9009\u5458\u5de5\u6570\u91cf\u5927\u4e8e3\u5e76\u4e14\u5e73\u5747\u5de5\u8d44\u5927\u4e8e5000\u7684\u90e8\u95e8\uff0c\u5e76\u7edf\u8ba1\u5404\u90e8\u95e8\u7684\u5e73\u5747\u5de5\u8d44\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHAVING\u5b50\u53e5\u662fMySQL\u4e2d\u7528\u4e8e\u5bf9GROUP BY\u5b50\u53e5\u5206\u7ec4\u540e\u7684\u7ed3\u679c\u8fdb\u884c\u7b5b\u9009\u7684\u5173\u952e\u5b57\u3002\u901a\u8fc7\u4f7f\u7528HAVING\u5b50\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u5206\u7ec4\u7ed3\u679c\u8fdb\u4e00\u6b65\u7b5b\u9009\u6570\u636e\uff0c\u5e76\u8ba1\u7b97\u805a\u5408\u51fd\u6570\u3002\u719f\u7ec3\u638c\u63e1HAVING\u5b50\u53e5\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caNNER JOIN\uff0cLEFT JOIN\uff0cRIGHT JOIN\u7b49\u8fde\u63a5\u7c7b\u578b<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u8fde\u63a5\u662f\u7528\u4e8e\u5c06\u4e24\u4e2a\u6216\u591a\u4e2a\u8868\u4e2d\u7684\u6570\u636e\u5408\u5e76\u5728\u4e00\u8d77\u7684\u4e00\u79cd\u64cd\u4f5c\u3002\u5e38\u7528\u7684\u8fde\u63a5\u7c7b\u578b\u5305\u62ecINNER JOIN\u3001LEFT JOIN\u3001RIGHT JOIN\u548cFULL OUTER JOIN\u7b49\u3002\u4ee5\u4e0b\u662f\u5bf9\u6bcf\u4e2a\u8fde\u63a5\u7c7b\u578b\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>INNER JOIN<\/li>\n<\/ol>\n\n\n\n<p>INNER JOIN\u662f\u6700\u5e38\u7528\u7684\u8fde\u63a5\u7c7b\u578b\u4e4b\u4e00\u3002INNER JOIN\u8fd4\u56de\u4e24\u4e2a\u8868\u4e2d\u5171\u6709\u7684\u6570\u636e\u884c\u3002\u5177\u4f53\u6765\u8bf4\uff0cINNER JOIN\u4f1a\u68c0\u67e5\u8fde\u63a5\u6761\u4ef6\u4e2d\u7684\u4e24\u4e2a\u8868\uff0c\u7136\u540e\u4ec5\u8fd4\u56de\u8fd9\u4e24\u4e2a\u8868\u4e2d\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528INNER JOIN\u8fde\u63a5employees\u8868\u548cdepartments\u8868\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT *\nFROM employees\nINNER JOIN departments\nON employees.department_id = departments.department_id;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u8fde\u63a5employees\u8868\u548cdepartments\u8868\uff0c\u5e76\u8fd4\u56de\u8fd9\u4e24\u4e2a\u8868\u4e2ddepartment_id\u76f8\u540c\u7684\u6570\u636e\u884c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>LEFT JOIN<\/li>\n<\/ol>\n\n\n\n<p>LEFT JOIN\u662f\u53e6\u4e00\u4e2a\u5e38\u7528\u7684\u8fde\u63a5\u7c7b\u578b\u3002LEFT JOIN\u8fd4\u56de\u5de6\u4fa7\u8868\u4e2d\u6240\u6709\u6570\u636e\u884c\u4ee5\u53ca\u4e0e\u53f3\u4fa7\u8868\u4e2d\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\u3002\u5982\u679c\u53f3\u4fa7\u8868\u4e2d\u6ca1\u6709\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\uff0c\u5219\u8fd4\u56deNULL\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528LEFT JOIN\u8fde\u63a5employees\u8868\u548cdepartments\u8868\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT *\nFROM employees\nLEFT JOIN departments\nON employees.department_id = departments.department_id;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u8fde\u63a5employees\u8868\u548cdepartments\u8868\uff0c\u5e76\u8fd4\u56deemployees\u8868\u4e2d\u6240\u6709\u6570\u636e\u884c\u4ee5\u53ca\u4e0edepartments\u8868\u4e2ddepartment_id\u76f8\u540c\u7684\u6570\u636e\u884c\u3002\u5982\u679cdepartments\u8868\u4e2d\u6ca1\u6709\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\uff0c\u5219\u8fd4\u56deNULL\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>RIGHT JOIN<\/li>\n<\/ol>\n\n\n\n<p>RIGHT JOIN\u4e0eLEFT JOIN\u7c7b\u4f3c\uff0c\u4f46\u662f\u8fd4\u56de\u53f3\u4fa7\u8868\u4e2d\u6240\u6709\u6570\u636e\u884c\u4ee5\u53ca\u4e0e\u5de6\u4fa7\u8868\u4e2d\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\u3002\u5982\u679c\u5de6\u4fa7\u8868\u4e2d\u6ca1\u6709\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\uff0c\u5219\u8fd4\u56deNULL\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528RIGHT JOIN\u8fde\u63a5employees\u8868\u548cdepartments\u8868\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT *\nFROM employees\nRIGHT JOIN departments\nON employees.department_id = departments.department_id;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u8fde\u63a5employees\u8868\u548cdepartments\u8868\uff0c\u5e76\u8fd4\u56dedepartments\u8868\u4e2d\u6240\u6709\u6570\u636e\u884c\u4ee5\u53ca\u4e0eemployees\u8868\u4e2ddepartment_id\u76f8\u540c\u7684\u6570\u636e\u884c\u3002\u5982\u679cemployees\u8868\u4e2d\u6ca1\u6709\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\uff0c\u5219\u8fd4\u56deNULL\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>FULL OUTER JOIN<\/li>\n<\/ol>\n\n\n\n<p>FULL OUTER JOIN\u8fd4\u56de\u5de6\u4fa7\u8868\u548c\u53f3\u4fa7\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u884c\uff0c\u5982\u679c\u6ca1\u6709\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u884c\uff0c\u5219\u8fd4\u56deNULL\u3002\u8be5\u8fde\u63a5\u7c7b\u578b\u5728MySQL\u4e2d\u4e0d\u652f\u6301\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528UNION\u548cLEFT JOIN\u548cRIGHT JOIN\u6765\u6a21\u62df\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u8fde\u63a5\u662f\u7528\u4e8e\u5c06\u4e24\u4e2a\u6216\u591a\u4e2a\u8868\u4e2d\u7684\u6570\u636e\u5408\u5e76\u5728\u4e00\u8d77\u7684\u4e00\u79cd\u64cd\u4f5c\u3002\u5e38\u7528\u7684\u8fde\u63a5\u7c7b\u578b\u5305\u62ecINNER JOIN\u3001LEFT JOIN\u3001RIGHT JOIN\u548cFULL OUTER JOIN\u7b49\u3002\u901a\u8fc7\u4f7f\u7528\u8fde\u63a5\uff0c\u7528\u6237\u53ef\u4ee5\u5feb\u901f\u5730\u5c06\u591a\u4e2a\u8868\u4e2d\u7684\u6570\u636e\u5408\u5e76\u5728\u4e00\u8d77\uff0c\u5e76\u8fdb\u884c\u7edf\u8ba1\u548c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4f7f\u7528\u5b50\u67e5\u8be2<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u5b50\u67e5\u8be2\u662f\u6307\u5728\u4e00\u4e2aSQL\u67e5\u8be2\u4e2d\u5d4c\u5957\u53e6\u4e00\u4e2aSQL\u67e5\u8be2\u7684\u67e5\u8be2\u8bed\u53e5\u3002\u5b50\u67e5\u8be2\u53ef\u4ee5\u7528\u6765\u67e5\u8be2\u548c\u8fc7\u6ee4\u6570\u636e\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u8ba1\u7b97\u548c\u7edf\u8ba1\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528\u5b50\u67e5\u8be2\u7684\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f7f\u7528\u5b50\u67e5\u8be2\u8fc7\u6ee4\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528\u5b50\u67e5\u8be2\u6765\u8fc7\u6ee4\u6570\u636e\uff0c\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u5b50\u67e5\u8be2\u8fc7\u6ee4employees\u8868\u4e2dsalary\u5927\u4e8e\u5e73\u5747\u503c\u7684\u6570\u636e\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT *\nFROM employees\nWHERE salary &gt; (SELECT AVG(salary) FROM employees);\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2employees\u8868\u4e2dsalary\u5927\u4e8e\u5e73\u5747\u503c\u7684\u6570\u636e\uff0c\u5e76\u4f7f\u7528\u5b50\u67e5\u8be2\u83b7\u53d6\u5e73\u5747\u5de5\u8d44\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4f7f\u7528\u5b50\u67e5\u8be2\u8ba1\u7b97\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528\u5b50\u67e5\u8be2\u6765\u8ba1\u7b97\u6570\u636e\uff0c\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u5b50\u67e5\u8be2\u8ba1\u7b97employees\u8868\u4e2d\u5404\u90e8\u95e8\u7684\u5e73\u5747\u5de5\u8d44\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT department, AVG(salary)\nFROM employees\nGROUP BY department\nHAVING AVG(salary) &gt; (SELECT AVG(salary) FROM employees);\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2employees\u8868\u4e2d\u5404\u90e8\u95e8\u7684\u5e73\u5747\u5de5\u8d44\uff0c\u5e76\u4f7f\u7528\u5b50\u67e5\u8be2\u83b7\u53d6\u6240\u6709\u90e8\u95e8\u7684\u5e73\u5747\u5de5\u8d44\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4f7f\u7528\u5b50\u67e5\u8be2\u66f4\u65b0\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528\u5b50\u67e5\u8be2\u6765\u66f4\u65b0\u6570\u636e\uff0c\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u5b50\u67e5\u8be2\u66f4\u65b0employees\u8868\u4e2dsalary\u5217\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>UPDATE employees\nSET salary = salary * 1.1\nWHERE employee_id IN (SELECT employee_id FROM employees WHERE department_id = 1);\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u67e5\u8be2employees\u8868\u4e2ddepartment_id\u4e3a1\u7684\u5458\u5de5\uff0c\u7136\u540e\u4f7f\u7528\u5b50\u67e5\u8be2\u5c06\u4ed6\u4eec\u7684\u5de5\u8d44\u589e\u52a010%\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5b50\u67e5\u8be2\u662fMySQL\u4e2d\u4e00\u79cd\u5e38\u7528\u7684\u67e5\u8be2\u6280\u672f\uff0c\u53ef\u7528\u4e8e\u67e5\u8be2\u548c\u8fc7\u6ee4\u6570\u636e\u3001\u8ba1\u7b97\u548c\u7edf\u8ba1\u6570\u636e\u4ee5\u53ca\u66f4\u65b0\u6570\u636e\u3002\u901a\u8fc7\u4f7f\u7528\u5b50\u67e5\u8be2\uff0c\u7528\u6237\u53ef\u4ee5\u66f4\u52a0\u7075\u6d3b\u5730\u64cd\u4f5c\u548c\u7ba1\u7406\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e8b\u52a1\u7684\u6982\u5ff5<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u4e8b\u52a1\u662f\u6307\u4e00\u7ec4\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u6267\u884c\uff0c\u8981\u4e48\u5168\u90e8\u4e0d\u6267\u884c\u3002\u4e8b\u52a1\u901a\u5e38\u7528\u6765\u4fdd\u8bc1\u6570\u636e\u5e93\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u4e8b\u52a1\u5177\u6709\u4ee5\u4e0b\u56db\u4e2a\u7279\u6027\uff0c\u901a\u5e38\u88ab\u79f0\u4e3aACID\u5c5e\u6027\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u539f\u5b50\u6027\uff08Atomicity\uff09<\/li>\n<\/ol>\n\n\n\n<p>\u539f\u5b50\u6027\u662f\u6307\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u6267\u884c\uff0c\u8981\u4e48\u5168\u90e8\u4e0d\u6267\u884c\u3002\u5982\u679c\u5728\u6267\u884c\u4e8b\u52a1\u671f\u95f4\u51fa\u73b0\u4e86\u9519\u8bef\uff0c\u6240\u6709\u5df2\u7ecf\u6267\u884c\u7684\u64cd\u4f5c\u5c06\u88ab\u56de\u6eda\uff0c\u6570\u636e\u5e93\u5c06\u8fd4\u56de\u5230\u4e8b\u52a1\u5f00\u59cb\u4e4b\u524d\u7684\u72b6\u6001\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4e00\u81f4\u6027\uff08Consistency\uff09<\/li>\n<\/ol>\n\n\n\n<p>\u4e00\u81f4\u6027\u662f\u6307\u5728\u6267\u884c\u4e8b\u52a1\u4e4b\u524d\u548c\u4e4b\u540e\uff0c\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u90fd\u5fc5\u987b\u6ee1\u8db3\u6240\u6709\u7684\u7ea6\u675f\u6761\u4ef6\u548c\u5b8c\u6574\u6027\u89c4\u5219\u3002\u5982\u679c\u5728\u6267\u884c\u4e8b\u52a1\u671f\u95f4\u51fa\u73b0\u4e86\u9519\u8bef\uff0c\u6240\u6709\u5df2\u7ecf\u6267\u884c\u7684\u64cd\u4f5c\u5c06\u88ab\u56de\u6eda\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u9694\u79bb\u6027\uff08Isolation\uff09<\/li>\n<\/ol>\n\n\n\n<p>\u9694\u79bb\u6027\u662f\u6307\u5728\u5e76\u53d1\u6267\u884c\u4e8b\u52a1\u65f6\uff0c\u6bcf\u4e2a\u4e8b\u52a1\u90fd\u5e94\u8be5\u4e0e\u5176\u4ed6\u4e8b\u52a1\u9694\u79bb\u5f00\u6765\uff0c\u4ee5\u9632\u6b62\u76f8\u4e92\u5e72\u6270\u548c\u5f71\u54cd\u3002\u9694\u79bb\u6027\u901a\u8fc7\u4f7f\u7528\u9501\u548c\u591a\u7248\u672c\u5e76\u53d1\u63a7\u5236\uff08MVCC\uff09\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6301\u4e45\u6027\uff08Durability\uff09<\/li>\n<\/ol>\n\n\n\n<p>\u6301\u4e45\u6027\u662f\u6307\u5728\u4e8b\u52a1\u63d0\u4ea4\u4e4b\u540e\uff0c\u5bf9\u6570\u636e\u5e93\u6240\u505a\u7684\u66f4\u6539\u5c06\u6c38\u4e45\u4fdd\u5b58\uff0c\u5373\u4f7f\u53d1\u751f\u7cfb\u7edf\u6545\u969c\u6216\u91cd\u65b0\u542f\u52a8\u3002\u6301\u4e45\u6027\u901a\u8fc7\u5c06\u4e8b\u52a1\u65e5\u5fd7\u8bb0\u5f55\u5230\u78c1\u76d8\u4e2d\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u4e8b\u52a1\u662f\u6307\u4e00\u7ec4\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u6267\u884c\uff0c\u8981\u4e48\u5168\u90e8\u4e0d\u6267\u884c\u3002\u4e8b\u52a1\u901a\u5e38\u7528\u6765\u4fdd\u8bc1\u6570\u636e\u5e93\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5728MySQL\u4e2d\uff0c\u4e8b\u52a1\u5177\u6709\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u79bb\u6027\u548c\u6301\u4e45\u6027\u7b49\u56db\u4e2a\u7279\u6027\uff0c\u901a\u5e38\u88ab\u79f0\u4e3aACID\u5c5e\u6027\u3002\u719f\u7ec3\u638c\u63e1\u4e8b\u52a1\u7684\u6982\u5ff5\u548c\u7279\u6027\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u6570\u636e\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caSTART TRANSACTION\uff0cCOMMIT\uff0cROLLBACK\u7b49\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5\u7528\u4e8e\u63a7\u5236\u4e8b\u52a1\u7684\u884c\u4e3a\u548c\u7ed3\u679c\u3002\u4ee5\u4e0b\u662fMySQL\u4e2d\u5e38\u7528\u7684\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>START TRANSACTION<\/li>\n<\/ol>\n\n\n\n<p>START TRANSACTION\u8bed\u53e5\u7528\u4e8e\u5f00\u59cb\u4e00\u4e2a\u4e8b\u52a1\u3002\u5728\u6267\u884cSTART TRANSACTION\u8bed\u53e5\u540e\uff0c\u6240\u6709\u7684SQL\u8bed\u53e5\u5c06\u88ab\u89c6\u4e3a\u4e00\u4e2a\u4e8b\u52a1\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528START TRANSACTION\u8bed\u53e5\u5f00\u59cb\u4e8b\u52a1\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>START TRANSACTION;\nUPDATE account SET balance = balance - 100 WHERE account_id = 1;\nUPDATE account SET balance = balance + 100 WHERE account_id = 2;\nCOMMIT;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4f7f\u7528START TRANSACTION\u8bed\u53e5\u5f00\u59cb\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5e76\u5728\u4e8b\u52a1\u4e2d\u6267\u884c\u4e24\u4e2aSQL\u8bed\u53e5\u3002\u5982\u679c\u4e24\u4e2aSQL\u8bed\u53e5\u90fd\u6210\u529f\u6267\u884c\uff0c\u4e8b\u52a1\u5c06\u4f7f\u7528COMMIT\u8bed\u53e5\u63d0\u4ea4\uff0c\u5426\u5219\u5c06\u4f7f\u7528ROLLBACK\u8bed\u53e5\u56de\u6eda\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>COMMIT<\/li>\n<\/ol>\n\n\n\n<p>COMMIT\u8bed\u53e5\u7528\u4e8e\u63d0\u4ea4\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5e76\u4f7f\u4e8b\u52a1\u7684\u7ed3\u679c\u6c38\u4e45\u6027\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\u3002\u5728\u6267\u884cCOMMIT\u8bed\u53e5\u4e4b\u524d\uff0c\u6240\u6709\u5728START TRANSACTION\u548cCOMMIT\u4e4b\u95f4\u7684SQL\u8bed\u53e5\u90fd\u5c06\u88ab\u89c6\u4e3a\u4e00\u4e2a\u4e8b\u52a1\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528COMMIT\u8bed\u53e5\u63d0\u4ea4\u4e8b\u52a1\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>START TRANSACTION;\nUPDATE account SET balance = balance - 100 WHERE account_id = 1;\nUPDATE account SET balance = balance + 100 WHERE account_id = 2;\nCOMMIT;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4f7f\u7528START TRANSACTION\u8bed\u53e5\u5f00\u59cb\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5e76\u5728\u4e8b\u52a1\u4e2d\u6267\u884c\u4e24\u4e2aSQL\u8bed\u53e5\u3002\u5982\u679c\u4e24\u4e2aSQL\u8bed\u53e5\u90fd\u6210\u529f\u6267\u884c\uff0c\u4e8b\u52a1\u5c06\u4f7f\u7528COMMIT\u8bed\u53e5\u63d0\u4ea4\uff0c\u5426\u5219\u5c06\u4f7f\u7528ROLLBACK\u8bed\u53e5\u56de\u6eda\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>ROLLBACK<\/li>\n<\/ol>\n\n\n\n<p>ROLLBACK\u8bed\u53e5\u7528\u4e8e\u64a4\u6d88\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5e76\u4f7f\u4e8b\u52a1\u7684\u7ed3\u679c\u56de\u6eda\u5230\u4e8b\u52a1\u5f00\u59cb\u4e4b\u524d\u7684\u72b6\u6001\u3002\u5982\u679c\u5728\u6267\u884cSTART TRANSACTION\u548cCOMMIT\u4e4b\u95f4\u7684SQL\u8bed\u53e5\u671f\u95f4\u51fa\u73b0\u4e86\u9519\u8bef\uff0c\u4e8b\u52a1\u5c06\u81ea\u52a8\u56de\u6eda\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528ROLLBACK\u8bed\u53e5\u56de\u6eda\u4e8b\u52a1\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>START TRANSACTION;\nUPDATE account SET balance = balance - 100 WHERE account_id = 1;\nUPDATE account SET balance = balance + 100 WHERE account_id = 2;\nROLLBACK;\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u4f7f\u7528START TRANSACTION\u8bed\u53e5\u5f00\u59cb\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5e76\u5728\u4e8b\u52a1\u4e2d\u6267\u884c\u4e24\u4e2aSQL\u8bed\u53e5\u3002\u5982\u679c\u5176\u4e2d\u4efb\u4f55\u4e00\u4e2aSQL\u8bed\u53e5\u51fa\u73b0\u9519\u8bef\uff0c\u4e8b\u52a1\u5c06\u4f7f\u7528ROLLBACK\u8bed\u53e5\u56de\u6eda\uff0c\u5c06\u6570\u636e\u5e93\u6062\u590d\u5230\u4e8b\u52a1\u5f00\u59cb\u4e4b\u524d\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cSTART TRANSACTION\uff0cCOMMIT\u548cROLLBACK\u662fMySQL\u4e2d\u5e38\u7528\u7684\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5\uff0c\u7528\u4e8e\u63a7\u5236\u4e8b\u52a1\u7684\u884c\u4e3a\u548c\u7ed3\u679c\u3002\u901a\u8fc7\u4f7f\u7528\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ef4\u62a4\u6570\u636e\uff0c\u5e76\u786e\u4fdd\u6570\u636e\u5e93\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u521b\u5efa\u548c\u5220\u9664\u7528\u6237\uff08CREATE USER\uff0cDROP USER\uff09<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u7528\u6237\u662f\u7528\u4e8e\u7ba1\u7406\u548c\u63a7\u5236\u6570\u636e\u5e93\u8bbf\u95ee\u7684\u91cd\u8981\u6982\u5ff5\u3002\u7528\u6237\u53ef\u4ee5\u521b\u5efa\u548c\u5220\u9664\uff0c\u4ee5\u63a7\u5236\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u548c\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662fMySQL\u4e2d\u5e38\u7528\u7684\u521b\u5efa\u548c\u5220\u9664\u7528\u6237\u7684\u8bed\u53e5\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>CREATE USER<\/li>\n<\/ol>\n\n\n\n<p>CREATE USER\u8bed\u53e5\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u65b0\u7528\u6237\u5e76\u6307\u5b9a\u5176\u767b\u5f55\u51ed\u636e\u548c\u6743\u9650\u3002\u5728\u521b\u5efa\u7528\u6237\u65f6\uff0c\u5fc5\u987b\u6307\u5b9a\u7528\u6237\u540d\u548c\u5bc6\u7801\uff0c\u4e5f\u53ef\u4ee5\u6307\u5b9a\u7528\u6237\u7684\u6743\u9650\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528CREATE USER\u8bed\u53e5\u521b\u5efa\u65b0\u7528\u6237\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE USER 'newuser'@'localhost' IDENTIFIED BY 'password';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3anewuser\u7684\u7528\u6237\uff0c\u5e76\u4e3a\u8be5\u7528\u6237\u6307\u5b9a\u4e86\u5bc6\u7801password\u3002@&#8217;localhost&#8217;\u6307\u5b9a\u4e86\u8be5\u7528\u6237\u53ea\u80fd\u4ece\u672c\u5730\u4e3b\u673a\u767b\u5f55\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>DROP USER<\/li>\n<\/ol>\n\n\n\n<p>DROP USER\u8bed\u53e5\u7528\u4e8e\u5220\u9664\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u7528\u6237\u3002\u5728\u5220\u9664\u7528\u6237\u65f6\uff0c\u5fc5\u987b\u6307\u5b9a\u7528\u6237\u540d\u548c\u4e3b\u673a\u540d\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528DROP USER\u8bed\u53e5\u5220\u9664\u7528\u6237\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DROP USER 'newuser'@'localhost';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u5220\u9664\u540d\u4e3anewuser\u7684\u7528\u6237\uff0c\u5e76\u6307\u5b9a\u8be5\u7528\u6237\u53ea\u80fd\u4ece\u672c\u5730\u4e3b\u673a\u767b\u5f55\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528CREATE USER\u548cDROP USER\u8bed\u53e5\u6765\u521b\u5efa\u548c\u5220\u9664\u7528\u6237\u3002\u901a\u8fc7\u521b\u5efa\u548c\u5220\u9664\u7528\u6237\uff0c\u7528\u6237\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u548c\u63a7\u5236\u6570\u636e\u5e93\u8bbf\u95ee\u548c\u64cd\u4f5c\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u7528\u6237\u6743\u9650\u7ba1\u7406\uff08GRANT\uff0cREVOKE\uff09<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u7528\u6237\u6743\u9650\u662f\u7528\u4e8e\u63a7\u5236\u7528\u6237\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u548c\u64cd\u4f5c\u7684\u91cd\u8981\u6982\u5ff5\u3002\u901a\u8fc7\u4f7f\u7528GRANT\u548cREVOKE\u8bed\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u6388\u4e88\u548c\u64a4\u9500\u7528\u6237\u7684\u6743\u9650\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662fMySQL\u4e2d\u5e38\u7528\u7684\u7528\u6237\u6743\u9650\u7ba1\u7406\u8bed\u53e5\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>GRANT<\/li>\n<\/ol>\n\n\n\n<p>GRANT\u8bed\u53e5\u7528\u4e8e\u6388\u4e88\u7528\u6237\u6743\u9650\uff0c\u4f8b\u5982SELECT\u3001INSERT\u3001UPDATE\u3001DELETE\u7b49\u3002\u5728\u6388\u4e88\u6743\u9650\u65f6\uff0c\u5fc5\u987b\u6307\u5b9a\u7528\u6237\u3001\u4e3b\u673a\u548c\u6743\u9650\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528GRANT\u8bed\u53e5\u6388\u4e88\u7528\u6237SELECT\u6743\u9650\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>GRANT SELECT ON mydb.* TO 'newuser'@'localhost';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u6388\u4e88\u540d\u4e3anewuser\u7684\u7528\u6237\u4ece\u672c\u5730\u4e3b\u673a\u8bbf\u95eemydb\u6570\u636e\u5e93\u7684SELECT\u6743\u9650\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>REVOKE<\/li>\n<\/ol>\n\n\n\n<p>REVOKE\u8bed\u53e5\u7528\u4e8e\u64a4\u9500\u7528\u6237\u7684\u6743\u9650\u3002\u5728\u64a4\u9500\u6743\u9650\u65f6\uff0c\u5fc5\u987b\u6307\u5b9a\u7528\u6237\u3001\u4e3b\u673a\u548c\u6743\u9650\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528REVOKE\u8bed\u53e5\u64a4\u9500\u7528\u6237SELECT\u6743\u9650\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>REVOKE SELECT ON mydb.* FROM 'newuser'@'localhost';\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u8bed\u53e5\u5c06\u64a4\u9500\u540d\u4e3anewuser\u7684\u7528\u6237\u4ece\u672c\u5730\u4e3b\u673a\u8bbf\u95eemydb\u6570\u636e\u5e93\u7684SELECT\u6743\u9650\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528GRANT\u548cREVOKE\u8bed\u53e5\u6765\u6388\u4e88\u548c\u64a4\u9500\u7528\u6237\u7684\u6743\u9650\u3002\u901a\u8fc7\u6743\u9650\u7ba1\u7406\uff0c\u7528\u6237\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u548c\u64cd\u4f5c\uff0c\u4fdd\u8bc1\u6570\u636e\u5e93\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6570\u636e\u5e93\u5907\u4efd\uff08mysqldump\uff09<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u5907\u4efd\u662f\u6307\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u548c\u7ed3\u6784\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\u7684\u8fc7\u7a0b\u3002\u5907\u4efd\u53ef\u4ee5\u7528\u4e8e\u6062\u590d\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u4ee5\u9632\u6b62\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\u3002\u5176\u4e2d\uff0cmysqldump\u662fMySQL\u4e2d\u4e00\u4e2a\u5e38\u7528\u7684\u5907\u4efd\u5de5\u5177\uff0c\u53ef\u4ee5\u5907\u4efdMySQL\u4e2d\u7684\u6574\u4e2a\u6570\u636e\u5e93\u6216\u5355\u4e2a\u8868\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662fmysqldump\u5907\u4efd\u5de5\u5177\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5907\u4efd\u6574\u4e2a\u6570\u636e\u5e93<\/li>\n<\/ol>\n\n\n\n<p>\u8981\u5907\u4efd\u6574\u4e2a\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>mysqldump -u username -p password database_name &gt; backup_file.sql\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cusername\u662f\u6570\u636e\u5e93\u7684\u7528\u6237\u540d\uff0cpassword\u662f\u6570\u636e\u5e93\u7684\u5bc6\u7801\uff0cdatabase_name\u662f\u8981\u5907\u4efd\u7684\u6570\u636e\u5e93\u7684\u540d\u79f0\uff0cbackup_file.sql\u662f\u5907\u4efd\u6587\u4ef6\u7684\u540d\u79f0\u548c\u8def\u5f84\u3002\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u5c06\u5907\u4efd\u6574\u4e2a\u6570\u636e\u5e93\u5e76\u5c06\u5176\u4fdd\u5b58\u5230backup_file.sql\u6587\u4ef6\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5907\u4efd\u5355\u4e2a\u8868<\/li>\n<\/ol>\n\n\n\n<p>\u8981\u5907\u4efd\u5355\u4e2a\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>mysqldump -u username -p password database_name table_name &gt; backup_file.sql\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cusername\u662f\u6570\u636e\u5e93\u7684\u7528\u6237\u540d\uff0cpassword\u662f\u6570\u636e\u5e93\u7684\u5bc6\u7801\uff0cdatabase_name\u662f\u8981\u5907\u4efd\u7684\u6570\u636e\u5e93\u7684\u540d\u79f0\uff0ctable_name\u662f\u8981\u5907\u4efd\u7684\u8868\u7684\u540d\u79f0\uff0cbackup_file.sql\u662f\u5907\u4efd\u6587\u4ef6\u7684\u540d\u79f0\u548c\u8def\u5f84\u3002\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u5c06\u5907\u4efd\u5355\u4e2a\u8868\u5e76\u5c06\u5176\u4fdd\u5b58\u5230backup_file.sql\u6587\u4ef6\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u8fd8\u539f\u5907\u4efd<\/li>\n<\/ol>\n\n\n\n<p>\u8981\u8fd8\u539f\u5907\u4efd\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>mysql -u username -p password database_name &lt; backup_file.sql\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cusername\u662f\u6570\u636e\u5e93\u7684\u7528\u6237\u540d\uff0cpassword\u662f\u6570\u636e\u5e93\u7684\u5bc6\u7801\uff0cdatabase_name\u662f\u8981\u8fd8\u539f\u5907\u4efd\u7684\u6570\u636e\u5e93\u7684\u540d\u79f0\uff0cbackup_file.sql\u662f\u5907\u4efd\u6587\u4ef6\u7684\u540d\u79f0\u548c\u8def\u5f84\u3002\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u5c06\u4ecebackup_file.sql\u6587\u4ef6\u4e2d\u8fd8\u539f\u6570\u636e\u5e76\u5c06\u5176\u4fdd\u5b58\u5230\u6307\u5b9a\u7684\u6570\u636e\u5e93\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5907\u4efd\u662f\u4fdd\u62a4\u6570\u636e\u5e93\u6570\u636e\u7684\u91cd\u8981\u65b9\u6cd5\u3002\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528mysqldump\u5907\u4efd\u5de5\u5177\u6765\u5907\u4efd\u6574\u4e2a\u6570\u636e\u5e93\u6216\u5355\u4e2a\u8868\u3002\u5907\u4efd\u53ef\u4ee5\u7528\u4e8e\u6062\u590d\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u4ee5\u9632\u6b62\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6570\u636e\u5e93\u6062\u590d<\/p>\n\n\n\n<p>\u5728MySQL\u4e2d\uff0c\u6570\u636e\u5e93\u6062\u590d\u662f\u6307\u5c06\u5907\u4efd\u7684\u6570\u636e\u8fd8\u539f\u5230\u6570\u636e\u5e93\u4e2d\u7684\u8fc7\u7a0b\u3002\u5982\u679c\u6570\u636e\u5e93\u53d1\u751f\u4e86\u6545\u969c\u6216\u6570\u636e\u4e22\u5931\uff0c\u53ef\u4ee5\u4f7f\u7528\u5907\u4efd\u6570\u636e\u6765\u6062\u590d\u6570\u636e\u5e93\uff0c\u4ee5\u4fbf\u91cd\u65b0\u542f\u52a8\u6570\u636e\u5e93\u5e76\u6062\u590d\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662fMySQL\u6570\u636e\u5e93\u6062\u590d\u7684\u8be6\u7ec6\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u51c6\u5907\u5907\u4efd\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u8fdb\u884c\u6570\u636e\u5e93\u6062\u590d\u4e4b\u524d\uff0c\u5fc5\u987b\u51c6\u5907\u597d\u5907\u4efd\u6587\u4ef6\u3002\u5907\u4efd\u6587\u4ef6\u53ef\u4ee5\u662f\u901a\u8fc7mysqldump\u5907\u4efd\u5de5\u5177\u521b\u5efa\u7684.sql\u6587\u4ef6\u6216\u901a\u8fc7\u5176\u4ed6\u5907\u4efd\u5de5\u5177\u521b\u5efa\u7684\u5907\u4efd\u6587\u4ef6\u3002\u786e\u4fdd\u5907\u4efd\u6587\u4ef6\u662f\u6700\u65b0\u7684\uff0c\u5e76\u4e14\u5305\u542b\u8981\u6062\u590d\u7684\u6570\u636e\u548c\u8868\u7ed3\u6784\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u505c\u6b62MySQL\u670d\u52a1<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u8fdb\u884c\u6570\u636e\u5e93\u6062\u590d\u4e4b\u524d\uff0c\u5fc5\u987b\u505c\u6b62MySQL\u670d\u52a1\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u505c\u6b62MySQL\u670d\u52a1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>sudo service mysql stop\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u5220\u9664\u6570\u636e\u76ee\u5f55<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u8fdb\u884c\u6570\u636e\u5e93\u6062\u590d\u4e4b\u524d\uff0c\u5fc5\u987b\u5220\u9664MySQL\u6570\u636e\u76ee\u5f55\u4e2d\u7684\u6240\u6709\u6587\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5220\u9664MySQL\u6570\u636e\u76ee\u5f55\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bashCopy code<code>sudo rm -rf \/var\/lib\/mysql\/*\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u8fd8\u539f\u5907\u4efd\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u8fdb\u884c\u6570\u636e\u5e93\u6062\u590d\u4e4b\u524d\uff0c\u5fc5\u987b\u5c06\u5907\u4efd\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u8fd8\u539f\u5230MySQL\u6570\u636e\u76ee\u5f55\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fd8\u539f\u5907\u4efd\u6587\u4ef6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>sudo mysql -u username -p database_name &lt; backup_file.sql\n<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\uff0cusername\u662fMySQL\u7528\u6237\u540d\uff0cdatabase_name\u662f\u8981\u8fd8\u539f\u5907\u4efd\u7684\u6570\u636e\u5e93\u7684\u540d\u79f0\uff0cbackup_file.sql\u662f\u5907\u4efd\u6587\u4ef6\u7684\u540d\u79f0\u548c\u8def\u5f84\u3002\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u5c06\u4ece\u5907\u4efd\u6587\u4ef6\u4e2d\u8fd8\u539f\u6570\u636e\u5e76\u5c06\u5176\u4fdd\u5b58\u5230MySQL\u6570\u636e\u76ee\u5f55\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u542f\u52a8MySQL\u670d\u52a1<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u5c06\u5907\u4efd\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u8fd8\u539f\u5230MySQL\u6570\u636e\u76ee\u5f55\u540e\uff0c\u5fc5\u987b\u542f\u52a8MySQL\u670d\u52a1\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u542f\u52a8MySQL\u670d\u52a1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>sudo service mysql start\n<\/code><\/pre>\n\n\n\n<p>\u542f\u52a8MySQL\u670d\u52a1\u540e\uff0c\u5c06\u91cd\u65b0\u542f\u52a8MySQL\u5e76\u52a0\u8f7d\u65b0\u8fd8\u539f\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5907\u4efd\u6587\u4ef6\u6765\u6062\u590d\u6570\u636e\u5e93\u3002\u6062\u590d\u6570\u636e\u5e93\u9700\u8981\u51c6\u5907\u597d\u5907\u4efd\u6587\u4ef6\u3001\u505c\u6b62MySQL\u670d\u52a1\u3001\u5220\u9664MySQL\u6570\u636e\u76ee\u5f55\u4e2d\u7684\u6240\u6709\u6587\u4ef6\u3001\u8fd8\u539f\u5907\u4efd\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u5e76\u542f\u52a8MySQL\u670d\u52a1\u3002\u901a\u8fc7\u6267\u884c\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u53ef\u4ee5\u5c06\u5907\u4efd\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u8fd8\u539f\u5230MySQL\u4e2d\uff0c\u4ee5\u6062\u590d\u6570\u636e\u5e93\u5e76\u91cd\u65b0\u542f\u52a8\u670d\u52a1\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8fdb\u884cMySql\u6559\u7a0b\u56de\u987e<\/p>\n\n\n\n<p>\u5728\u672c\u6b21MySQL\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5b66\u4e60\u4e86\u8bb8\u591a\u6709\u5173MySQL\u7684\u77e5\u8bc6\u3002\u4ee5\u4e0b\u662fMySQL\u6559\u7a0b\u7684\u56de\u987e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>MySQL\u7b80\u4ecb\uff1a\u6211\u4eec\u4e86\u89e3\u4e86MySQL\u662f\u4ec0\u4e48\uff0cMySQL\u7684\u5e94\u7528\u573a\u666f\u548c\u4f18\u52bf\u3002<\/li>\n\n\n\n<li>MySQL\u7684\u5b89\u88c5\u548c\u914d\u7f6e\uff1a\u6211\u4eec\u5b66\u4e60\u4e86\u5982\u4f55\u4e0b\u8f7d\u548c\u5b89\u88c5MySQL\uff0c\u5982\u4f55\u914d\u7f6eMySQL\u73af\u5883\u53d8\u91cf\uff0c\u5982\u4f55\u542f\u52a8\u548c\u5173\u95edMySQL\u670d\u52a1\u3002<\/li>\n\n\n\n<li>MySQL\u57fa\u672c\u6982\u5ff5\uff1a\u6211\u4eec\u5b66\u4e60\u4e86MySQL\u4e2d\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u5305\u62ec\u6570\u636e\u5e93\u3001\u6570\u636e\u8868\u3001\u5b57\u6bb5\u3001\u8bb0\u5f55\u3001\u4e3b\u952e\u3001\u5916\u952e\u7b49\u3002<\/li>\n\n\n\n<li>MySQL\u5ba2\u6237\u7aef\u5de5\u5177\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86MySQL\u5ba2\u6237\u7aef\u5de5\u5177\uff0c\u5305\u62ecMySQL Shell\u3001MySQL Workbench\u548c\u547d\u4ee4\u884c\u5ba2\u6237\u7aef\u3002<\/li>\n\n\n\n<li>SQL\u8bed\u8a00\u7b80\u4ecb\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86SQL\u8bed\u8a00\u662f\u4ec0\u4e48\uff0c\u4ee5\u53caSQL\u8bed\u53e5\u7684\u7c7b\u578b\uff0c\u5305\u62ecDDL\u3001DML\u548cDCL\u3002<\/li>\n\n\n\n<li>SQL\u8bed\u53e5\u7684\u4f7f\u7528\uff1a\u6211\u4eec\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528SQL\u8bed\u53e5\uff0c\u5305\u62ecCREATE DATABASE\u3001CREATE TABLE\u3001INSERT\u3001SELECT\u3001UPDATE\u3001DELETE\u7b49\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86MySQL\u4e2d\u7684\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\uff0c\u5305\u62ec\u6570\u503c\u7c7b\u578b\u3001\u65e5\u671f\u548c\u65f6\u95f4\u7c7b\u578b\u3001\u5b57\u7b26\u4e32\u7c7b\u578b\u3001\u4e3b\u952e\u3001\u5916\u952e\u3001\u552f\u4e00\u6027\u7ea6\u675f\u7b49\u3002<\/li>\n\n\n\n<li>\u7d22\u5f15\u67e5\u8be2\u4f18\u5316\uff1a\u6211\u4eec\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528\u7d22\u5f15\u6765\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u5206\u6790\u67e5\u8be2\u6027\u80fd\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528EXPLAIN\u8bed\u53e5\u6765\u5206\u6790\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u805a\u5408\u51fd\u6570\uff1a\u6211\u4eec\u5b66\u4e60\u4e86COUNT\u3001SUM\u3001AVG\u3001MIN\u3001MAX\u7b49\u805a\u5408\u51fd\u6570\u7684\u4f7f\u7528\u3002<\/li>\n\n\n\n<li>GROUP BY\u5b50\u53e5\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528GROUP BY\u5b50\u53e5\u6765\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u5206\u7ec4\u3002<\/li>\n\n\n\n<li>HAVING\u5b50\u53e5\uff1a\u6211\u4eec\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528HAVING\u5b50\u53e5\u6765\u8fc7\u6ee4\u5206\u7ec4\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u8fde\u63a5\u7c7b\u578b\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86INNER JOIN\u3001LEFT JOIN\u3001RIGHT JOIN\u7b49\u8fde\u63a5\u7c7b\u578b\u7684\u4f7f\u7528\u3002<\/li>\n\n\n\n<li>\u5b50\u67e5\u8be2\uff1a\u6211\u4eec\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528\u5b50\u67e5\u8be2\u6765\u8fdb\u884c\u590d\u6742\u7684\u67e5\u8be2\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li>\u4e8b\u52a1\u7684\u6982\u5ff5\u548c\u63a7\u5236\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86\u4ec0\u4e48\u662f\u4e8b\u52a1\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528START TRANSACTION\u3001COMMIT\u548cROLLBACK\u7b49\u8bed\u53e5\u6765\u63a7\u5236\u4e8b\u52a1\u3002<\/li>\n\n\n\n<li>\u7528\u6237\u6743\u9650\u7ba1\u7406\uff1a\u6211\u4eec\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528GRANT\u548cREVOKE\u8bed\u53e5\u6765\u7ba1\u7406\u7528\u6237\u6743\u9650\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u5907\u4efd\u548c\u6062\u590d\uff1a\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528mysqldump\u5907\u4efd\u5de5\u5177\u6765\u5907\u4efdMySQL\u6570\u636e\u5e93\uff0c\u5e76\u8bb2\u89e3\u4e86\u5982\u4f55\u5728\u6570\u636e\u5e93\u51fa\u73b0\u95ee\u9898\u65f6\u4f7f\u7528\u5907\u4efd\u6587\u4ef6\u6765\u6062\u590d\u6570\u636e\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0a\u662f\u672c\u6b21MySQL\u6559\u7a0b\u7684\u56de\u987e\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8fdb\u884c\u5b66\u4e60\u8d44\u6e90\u63a8\u8350<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5b66\u4e60MySQL\u7684\u8d44\u6e90\u63a8\u8350\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b98\u65b9\u6587\u6863\uff1aMySQL\u5b98\u65b9\u63d0\u4f9b\u4e86\u8be6\u7ec6\u7684\u6587\u6863\uff0c\u5305\u62ec\u5b89\u88c5\u3001\u914d\u7f6e\u3001\u4f7f\u7528\u7b49\u65b9\u9762\u7684\u5185\u5bb9\uff0c\u975e\u5e38\u9002\u5408\u521d\u5b66\u8005\u9605\u8bfb\u3002<\/li>\n\n\n\n<li>MySQL Tutorial\uff1aMySQL Tutorial\u662f\u4e00\u4e2a\u514d\u8d39\u7684\u5728\u7ebfMySQL\u6559\u7a0b\uff0c\u6db5\u76d6\u4e86\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u7684\u6240\u6709\u5185\u5bb9\u3002<\/li>\n\n\n\n<li>W3Schools\uff1aW3Schools\u662f\u4e00\u4e2a\u5e7f\u53d7\u6b22\u8fce\u7684Web\u5f00\u53d1\u6559\u7a0b\u7f51\u7ad9\uff0c\u63d0\u4f9b\u4e86MySQL\u6559\u7a0b\u548c\u7ec3\u4e60\u3002<\/li>\n\n\n\n<li>Udemy\uff1aUdemy\u662f\u4e00\u4e2a\u5728\u7ebf\u6559\u80b2\u5e73\u53f0\uff0c\u63d0\u4f9b\u4e86\u591a\u79cdMySQL\u8bfe\u7a0b\uff0c\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u90fd\u6709\u6db5\u76d6\u3002<\/li>\n\n\n\n<li>Coursera\uff1aCoursera\u662f\u4e00\u4e2a\u5728\u7ebf\u6559\u80b2\u5e73\u53f0\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e9b\u7531\u4e16\u754c\u9876\u7ea7\u5927\u5b66\u6559\u6388\u7684MySQL\u8bfe\u7a0b\u3002<\/li>\n\n\n\n<li>Youtube\uff1aYouTube\u4e0a\u6709\u5f88\u591aMySQL\u89c6\u9891\u6559\u7a0b\uff0c\u5305\u62ec\u57fa\u7840\u3001\u9ad8\u7ea7\u548c\u5b9e\u6218\u7b49\u65b9\u9762\u7684\u5185\u5bb9\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5b66\u4e60MySQL\u9700\u8981\u4e0d\u65ad\u5730\u638c\u63e1\u77e5\u8bc6\u548c\u5b9e\u8df5\u7ecf\u9a8c\uff0c\u4ee5\u4e0a\u63a8\u8350\u7684\u5b66\u4e60\u8d44\u6e90\u53ef\u4ee5\u5e2e\u52a9\u4f60\u52a0\u5f3a\u7406\u8bba\u77e5\u8bc6\u548c\u5b9e\u8df5\u80fd\u529b\u3002\u5e0c\u671b\u4f60\u80fd\u591f\u627e\u5230\u9002\u5408\u81ea\u5df1\u7684\u5b66\u4e60\u65b9\u5f0f\uff0c\u4e0d\u65ad\u63d0\u9ad8\u81ea\u5df1\u7684MySQL\u6280\u80fd\uff01<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caMySql\u7684\u53d1\u5c55\u8d8b\u52bf<\/p>\n\n\n\n<p>MySQL\u5728\u6570\u636e\u5e93\u9886\u57df\u4e00\u76f4\u90fd\u662f\u975e\u5e38\u6d41\u884c\u7684\u5f00\u6e90\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5b83\u7684\u53d1\u5c55\u8d8b\u52bf\u4e5f\u5728\u4e0d\u65ad\u5730\u53d8\u5316\u548c\u8fdb\u6b65\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662fMySQL\u7684\u53d1\u5c55\u8d8b\u52bf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9762\u5411\u4e91\u8ba1\u7b97\uff1a\u968f\u7740\u4e91\u8ba1\u7b97\u6280\u672f\u7684\u666e\u53ca\u548c\u53d1\u5c55\uff0cMySQL\u4e5f\u5f00\u59cb\u5411\u4e91\u8ba1\u7b97\u65b9\u5411\u53d1\u5c55\u3002MySQL\u63d0\u4f9b\u4e86\u5404\u79cd\u4e0e\u4e91\u8ba1\u7b97\u76f8\u5173\u7684\u529f\u80fd\u548c\u5de5\u5177\uff0c\u4f8b\u5982MySQL Cluster\u3001MySQL Enterprise Backup\u3001MySQL Enterprise Monitor\u7b49\uff0c\u4ee5\u5e2e\u52a9\u7528\u6237\u5728\u4e91\u73af\u5883\u4e2d\u7ba1\u7406\u548c\u8fd0\u8425MySQL\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n<li>\u652f\u6301NoSQL\uff1aMySQL\u5728\u652f\u6301\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u540c\u65f6\uff0c\u4e5f\u5f00\u59cb\u652f\u6301NoSQL\u6570\u636e\u5e93\u3002MySQL 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