{"id":1171,"date":"2023-04-16T10:39:46","date_gmt":"2023-04-16T01:39:46","guid":{"rendered":"http:\/\/edu.ujhb.org\/?p=1171"},"modified":"2023-04-16T10:39:46","modified_gmt":"2023-04-16T01:39:46","slug":"hive%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=1171","title":{"rendered":"Hive\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\u4eceHive\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\uff0c\u6211\u53ef\u4ee5\u4e3a\u60a8\u63d0\u4f9b\u4e00\u4efdHive\u6559\u7a0b\u7684\u5185\u5bb9\u5927\u7eb2\uff0c\u4ee5\u4e0b\u662f\u53ef\u80fd\u7684\u4e3b\u9898\u548c\u5b50\u4e3b\u9898\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Hive\u6982\u8ff0\n<ul class=\"wp-block-list\">\n<li>\u4ecb\u7ecdHive\u662f\u4ec0\u4e48<\/li>\n\n\n\n<li>Hive\u7684\u5386\u53f2\u548c\u53d1\u5c55<\/li>\n\n\n\n<li>Hive\u7684\u5e94\u7528\u573a\u666f<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Hive\u57fa\u7840\u77e5\u8bc6\n<ul class=\"wp-block-list\">\n<li>Hive\u67b6\u6784\u548c\u7ec4\u4ef6<\/li>\n\n\n\n<li>Hive\u6570\u636e\u6a21\u578b\u548c\u6570\u636e\u7c7b\u578b<\/li>\n\n\n\n<li>Hive\u67e5\u8be2\u8bed\u8a00\u548cSQL\u8bed\u53e5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Hive\u8868\u7ba1\u7406\n<ul class=\"wp-block-list\">\n<li>\u521b\u5efa\u8868\u548c\u5220\u9664\u8868<\/li>\n\n\n\n<li>\u8868\u7684\u5143\u6570\u636e<\/li>\n\n\n\n<li>\u8868\u7684\u5206\u533a\u548c\u6876<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Hive\u6570\u636e\u7ba1\u7406\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u7684\u5bfc\u5165\u548c\u5bfc\u51fa<\/li>\n\n\n\n<li>\u6570\u636e\u7684\u67e5\u8be2\u548c\u8fc7\u6ee4<\/li>\n\n\n\n<li>\u6570\u636e\u7684\u805a\u5408\u548c\u6392\u5e8f<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Hive\u9ad8\u7ea7\u7279\u6027\n<ul class=\"wp-block-list\">\n<li>Hive UDF\u548cUDAF<\/li>\n\n\n\n<li>Hive\u89c6\u56fe\u548c\u7d22\u5f15<\/li>\n\n\n\n<li>Hive\u4e8b\u52a1\u548c\u9501\u5b9a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Hive\u4f18\u5316\u548c\u8c03\u4f18\n<ul class=\"wp-block-list\">\n<li>Hive\u6027\u80fd\u8c03\u4f18<\/li>\n\n\n\n<li>Hive\u67e5\u8be2\u4f18\u5316<\/li>\n\n\n\n<li>Hive\u6570\u636e\u538b\u7f29\u548c\u5f52\u6863<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0a\u5185\u5bb9\u662f\u4e00\u4e2a\u6bd4\u8f83\u5168\u9762\u7684Hive\u6559\u7a0b\u5927\u7eb2\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u8fdb\u884c\u8c03\u6574\u548c\u5b8c\u5584\u3002\u5728\u5236\u4f5c\u89c6\u9891\u6559\u7a0b\u65f6\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4e0a\u8ff0\u5927\u7eb2\u7684\u987a\u5e8f\u9010\u6b65\u8bb2\u89e3\uff0c\u6216\u8005\u6839\u636e\u81ea\u5df1\u7684\u7406\u89e3\u548c\u7ecf\u9a8c\u5bf9\u4e0d\u540c\u7684\u4e3b\u9898\u8fdb\u884c\u4f18\u5148\u7ea7\u6392\u5e8f\u548c\u8be6\u7ec6\u8bb2\u89e3\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\u91caHive\u662f\u4ec0\u4e48<\/p>\n\n\n\n<p>Hive\u662f\u4e00\u4e2a\u57fa\u4e8eHadoop\u7684\u6570\u636e\u4ed3\u5e93\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7c7bSQL\u7684\u67e5\u8be2\u8bed\u8a00HiveQL\uff0c\u53ef\u4ee5\u5c06SQL\u8bed\u53e5\u8f6c\u6362\u6210Hadoop MapReduce\u4f5c\u4e1a\u6765\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u96c6\u3002Hive\u53ef\u4ee5\u5c06\u6570\u636e\u5b58\u50a8\u5728Hadoop\u7684\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edfHDFS\u4e2d\uff0c\u540c\u65f6\u652f\u6301\u5176\u4ed6\u5b58\u50a8\u7cfb\u7edf\u5982HBase\u3001Amazon S3\u7b49\u3002<\/p>\n\n\n\n<p>Hive\u7684\u4e3b\u8981\u76ee\u6807\u662f\u8ba9\u90a3\u4e9b\u719f\u6089SQL\u8bed\u8a00\u7684\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c\u4e8eSQL\u7684\u8bed\u8a00\u6765\u5904\u7406Hadoop\u4e2d\u7684\u6570\u636e\u3002Hive\u652f\u6301\u5404\u79cd\u7c7b\u578b\u7684\u67e5\u8be2\uff0c\u5305\u62ec\u7b80\u5355\u7684\u67e5\u8be2\u3001\u805a\u5408\u67e5\u8be2\u548c\u8fde\u63a5\u67e5\u8be2\u7b49\uff0c\u540c\u65f6\u4e5f\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u636e\u683c\u5f0f\u7684\u652f\u6301\uff0c\u5305\u62ec\u6587\u672c\u6587\u4ef6\u3001RC\u6587\u4ef6\u3001\u5e8f\u5217\u6587\u4ef6\u7b49\u3002<\/p>\n\n\n\n<p>\u9664\u4e86HiveQL\uff0cHive\u8fd8\u63d0\u4f9b\u4e86\u8bb8\u591a\u5de5\u5177\u548cAPI\uff0c\u5982\u547d\u4ee4\u884c\u754c\u9762\u3001Web\u754c\u9762\u3001ODBC\u548cJDBC\u63a5\u53e3\u7b49\uff0c\u65b9\u4fbf\u7528\u6237\u8fdb\u884c\u4ea4\u4e92\u5f0f\u67e5\u8be2\u548c\u96c6\u6210Hive\u5230\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u4e3a\u7528\u6237\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u3001\u7075\u6d3b\u3001\u9ad8\u6548\u7684\u65b9\u5f0f\u6765\u5904\u7406\u548c\u5206\u6790\u5927\u89c4\u6a21\u6570\u636e\u96c6\uff0c\u5c24\u5176\u9002\u7528\u4e8e\u90a3\u4e9b\u719f\u6089SQL\u8bed\u8a00\u7684\u5f00\u53d1\u8005\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\u91caHive\u7684\u5386\u53f2\u548c\u53d1\u5c55<\/p>\n\n\n\n<p>Hive\u6700\u521d\u7531Facebook\u516c\u53f8\u4e8e2007\u5e74\u5f00\u53d1\uff0c\u65e8\u5728\u4e3a\u5176\u6570\u636e\u5206\u6790\u5de5\u4f5c\u63d0\u4f9b\u4e00\u4e2a\u9ad8\u6548\u4e14\u6613\u4e8e\u4f7f\u7528\u7684\u5de5\u5177\u3002\u5728\u8fc7\u53bb\u7684\u5341\u591a\u5e74\u4e2d\uff0cHive\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u53d1\u5c55\uff0c\u4ee5\u4e0b\u662fHive\u7684\u5386\u53f2\u548c\u53d1\u5c55\u7684\u4e00\u4e9b\u5173\u952e\u8282\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2007\u5e74\uff0cFacebook\u516c\u53f8\u5f00\u59cb\u5f00\u53d1Hive\uff0c\u6700\u521d\u79f0\u4e3aHadoopDB\u3002<\/li>\n\n\n\n<li>2008\u5e74\uff0cHive\u6210\u4e3a\u4e86Apache\u7684\u4e00\u4e2a\u5f00\u6e90\u9879\u76ee\uff0c\u5e76\u5728Apache Hadoop\u7684\u5b50\u9879\u76ee\u4e2d\u5f97\u5230\u652f\u6301\u3002<\/li>\n\n\n\n<li>2010\u5e74\uff0cHive\u53d1\u5e03\u4e86\u7b2c\u4e00\u4e2a\u7a33\u5b9a\u7248\u672c\uff0c\u652f\u6301\u4e86\u66f4\u591a\u7684\u6570\u636e\u7c7b\u578b\u3001\u7528\u6237\u5b9a\u4e49\u51fd\u6570\u548c\u4f18\u5316\u6280\u672f\u7b49\u3002<\/li>\n\n\n\n<li>2012\u5e74\uff0cHive 0.10\u7248\u672c\u53d1\u5e03\uff0c\u5f15\u5165\u4e86HiveServer2\u548cHive Metastore\u670d\u52a1\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u53ef\u4f38\u7f29\u6027\u3002<\/li>\n\n\n\n<li>2013\u5e74\uff0cHive 0.11\u7248\u672c\u53d1\u5e03\uff0c\u5f15\u5165\u4e86Hive-on-Tez\uff0c\u901a\u8fc7\u5c06Hive\u67e5\u8be2\u8f6c\u6362\u6210Apache Tez\u7684\u4efb\u52a1\u6765\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n\n\n\n<li>2015\u5e74\uff0cHive 1.0\u7248\u672c\u53d1\u5e03\uff0c\u5f15\u5165\u4e86\u65b0\u7684\u6267\u884c\u5f15\u64ceHive LLAP\uff0c\u901a\u8fc7\u5b9e\u65f6\u67e5\u8be2\u548c\u4f4e\u5ef6\u8fdf\u54cd\u5e94\u6765\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n\n\n\n<li>2017\u5e74\uff0cHive 2.0\u7248\u672c\u53d1\u5e03\uff0c\u5f15\u5165\u4e86\u8bb8\u591a\u65b0\u7279\u6027\uff0c\u5982ACID\u4e8b\u52a1\u3001\u7d22\u5f15\u3001\u5411\u91cf\u5316\u67e5\u8be2\u7b49\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86Hive\u7684\u6027\u80fd\u548c\u529f\u80fd\u3002<\/li>\n\n\n\n<li>2020\u5e74\uff0cHive 3.0\u7248\u672c\u53d1\u5e03\uff0c\u5f15\u5165\u4e86\u8bb8\u591a\u65b0\u7279\u6027\uff0c\u5982\u5411\u91cf\u5316\u67e5\u8be2\u7684\u6269\u5c55\u3001\u5916\u90e8\u8868\u683c\u7684\u589e\u5f3a\u7b49\uff0c\u7ee7\u7eed\u4f18\u5316Hive\u7684\u6027\u80fd\u548c\u529f\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u7684\u53d1\u5c55\u5386\u7a0b\u4e2d\u4e0d\u65ad\u63a8\u9648\u51fa\u65b0\uff0c\u4ece\u6700\u521d\u7684HadoopDB\u5230\u73b0\u5728\u7684Hive 3.0\uff0c\u5b83\u4e0d\u65ad\u5f15\u5165\u65b0\u7279\u6027\u548c\u4f18\u5316\uff0c\u63d0\u9ad8\u4e86\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\uff0c\u6210\u4e3a\u4e86Hadoop\u751f\u6001\u7cfb\u7edf\u4e2d\u91cd\u8981\u7684\u6570\u636e\u4ed3\u5e93\u5de5\u5177\u4e4b\u4e00\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\u91caHive\u7684\u5e94\u7528\u573a\u666f<\/p>\n\n\n\n<p>Hive\u53ef\u4ee5\u5e94\u7528\u4e8e\u591a\u79cd\u573a\u666f\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u4ed3\u5e93\u548c\u6570\u636e\u5206\u6790\uff1aHive\u662f\u4e00\u4e2a\u6570\u636e\u4ed3\u5e93\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5c06\u5927\u89c4\u6a21\u6570\u636e\u96c6\u5b58\u50a8\u5728Hadoop\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u79cd\u7c7b\u4f3c\u4e8eSQL\u7684\u67e5\u8be2\u8bed\u8a00HiveQL\uff0c\u65b9\u4fbf\u7528\u6237\u8fdb\u884c\u6570\u636e\u67e5\u8be2\u3001\u8fc7\u6ee4\u3001\u805a\u5408\u3001\u6392\u5e8f\u7b49\u64cd\u4f5c\u3002\u8fd9\u4f7f\u5f97Hive\u6210\u4e3a\u4e86\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u96c6\u548c\u8fdb\u884c\u6570\u636e\u5206\u6790\u7684\u9996\u9009\u5de5\u5177\u4e4b\u4e00\u3002<\/li>\n\n\n\n<li>\u65e5\u5fd7\u5206\u6790\uff1aHive\u53ef\u4ee5\u7528\u4e8e\u5206\u6790\u5927\u91cf\u7684\u65e5\u5fd7\u6570\u636e\uff0c\u5982\u7f51\u7edc\u65e5\u5fd7\u3001\u670d\u52a1\u5668\u65e5\u5fd7\u3001\u5e94\u7528\u7a0b\u5e8f\u65e5\u5fd7\u7b49\u3002Hive\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u65e5\u5fd7\u6570\u636e\u5b58\u50a8\u5728Hadoop\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u7136\u540e\u4f7f\u7528HiveQL\u8fdb\u884c\u67e5\u8be2\u548c\u5206\u6790\uff0c\u4ece\u800c\u83b7\u53d6\u6709\u4ef7\u503c\u7684\u4fe1\u606f\u548c\u6d1e\u5bdf\u529b\u3002<\/li>\n\n\n\n<li>\u5546\u4e1a\u667a\u80fd\uff1aHive\u53ef\u4ee5\u4e0e\u5546\u4e1a\u667a\u80fd\u5de5\u5177\u96c6\u6210\uff0c\u5982Tableau\u3001QlikView\u7b49\u3002\u901a\u8fc7\u4f7f\u7528HiveQL\u548c\u5546\u4e1a\u667a\u80fd\u5de5\u5177\uff0c\u7528\u6237\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u548c\u5206\u6790\u5927\u89c4\u6a21\u6570\u636e\u96c6\uff0c\u4ece\u800c\u505a\u51fa\u66f4\u660e\u667a\u7684\u51b3\u7b56\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u6316\u6398\uff1aHive\u53ef\u4ee5\u7528\u4e8e\u6570\u636e\u6316\u6398\u548c\u673a\u5668\u5b66\u4e60\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528HiveQL\u8fdb\u884c\u6570\u636e\u5904\u7406\u548c\u7279\u5f81\u63d0\u53d6\uff0c\u7136\u540e\u5c06\u6570\u636e\u96c6\u96c6\u6210\u5230\u673a\u5668\u5b66\u4e60\u6a21\u578b\u4e2d\u8fdb\u884c\u8bad\u7ec3\u548c\u9884\u6d4b\u3002<\/li>\n\n\n\n<li>\u5b9e\u65f6\u67e5\u8be2\uff1aHive LLAP\u53ef\u4ee5\u7528\u4e8e\u5b9e\u65f6\u67e5\u8be2\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528HiveQL\u67e5\u8be2\u5b9e\u65f6\u6570\u636e\uff0c\u83b7\u5f97\u4f4e\u5ef6\u8fdf\u7684\u67e5\u8be2\u7ed3\u679c\u3002\u8fd9\u4f7f\u5f97Hive\u53ef\u4ee5\u5e94\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u5206\u6790\u548c\u6d41\u5f0f\u5904\u7406\u7b49\u573a\u666f\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u53ef\u4ee5\u5e94\u7528\u4e8e\u591a\u79cd\u573a\u666f\uff0c\u5176\u4f18\u70b9\u5305\u62ec\u53ef\u6269\u5c55\u6027\u3001\u7075\u6d3b\u6027\u548c\u6613\u4e8e\u4f7f\u7528\u6027\u3002\u65e0\u8bba\u662f\u6570\u636e\u4ed3\u5e93\u3001\u6570\u636e\u5206\u6790\u3001\u65e5\u5fd7\u5206\u6790\u3001\u5546\u4e1a\u667a\u80fd\u3001\u6570\u636e\u6316\u6398\u8fd8\u662f\u5b9e\u65f6\u67e5\u8be2\uff0cHive\u90fd\u53ef\u4ee5\u4e3a\u7528\u6237\u63d0\u4f9b\u9ad8\u6548\u3001\u5feb\u901f\u7684\u89e3\u51b3\u65b9\u6848\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\u91caHive\u67b6\u6784\u548c\u7ec4\u4ef6<\/p>\n\n\n\n<p>Hive\u662f\u4e00\u4e2a\u57fa\u4e8eHadoop\u7684\u6570\u636e\u4ed3\u5e93\u5de5\u5177\uff0c\u5b83\u7684\u67b6\u6784\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u7ec4\u4ef6\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Hive\u5ba2\u6237\u7aef\uff1aHive\u5ba2\u6237\u7aef\u662f\u4e0eHive\u4ea4\u4e92\u7684\u7528\u6237\u754c\u9762\uff0c\u5b83\u53ef\u4ee5\u662f\u547d\u4ee4\u884c\u754c\u9762\u3001Web\u754c\u9762\u6216\u901a\u8fc7ODBC\/JDBC\u63a5\u53e3\u7684\u5e94\u7528\u7a0b\u5e8f\u3002Hive\u5ba2\u6237\u7aef\u5c06\u7528\u6237\u63d0\u4ea4\u7684HiveQL\u67e5\u8be2\u7ffb\u8bd1\u6210MapReduce\u4efb\u52a1\u5e76\u5411Hadoop\u96c6\u7fa4\u63d0\u4ea4\u4f5c\u4e1a\u3002<\/li>\n\n\n\n<li>Hive Metastore\uff1aHive Metastore\u662f\u4e00\u4e2a\u5143\u6570\u636e\u5b58\u50a8\u670d\u52a1\uff0c\u5b83\u5b58\u50a8\u4e86Hive\u8868\u3001\u5206\u533a\u3001\u5217\u548c\u8868\u683c\u7edf\u8ba1\u4fe1\u606f\u7b49\u5143\u6570\u636e\u4fe1\u606f\u3002Hive Metastore\u4f7f\u7528RDBMS\u6216\u7c7b\u4f3c\u7684\u6301\u4e45\u5316\u5b58\u50a8\u670d\u52a1\u6765\u5b58\u50a8\u5143\u6570\u636e\u3002<\/li>\n\n\n\n<li>Hive Driver\uff1aHive Driver\u662fHive\u5ba2\u6237\u7aef\u548cHive\u6267\u884c\u5f15\u64ce\u4e4b\u95f4\u7684\u4e2d\u95f4\u4ef6\uff0c\u5b83\u63a5\u6536\u7528\u6237\u63d0\u4ea4\u7684HiveQL\u67e5\u8be2\uff0c\u5c06\u67e5\u8be2\u8f6c\u6362\u6210\u9002\u5f53\u7684MapReduce\u4f5c\u4e1a\uff0c\u5e76\u5c06\u4f5c\u4e1a\u63d0\u4ea4\u7ed9Hadoop\u96c6\u7fa4\u6267\u884c\u3002<\/li>\n\n\n\n<li>Hive\u6267\u884c\u5f15\u64ce\uff1aHive\u6267\u884c\u5f15\u64ce\u662fHive\u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u5b83\u6267\u884cHiveQL\u67e5\u8be2\u5e76\u5c06\u5176\u8f6c\u6362\u4e3aMapReduce\u4efb\u52a1\u3002Hive\u6267\u884c\u5f15\u64ce\u5305\u62ec\u4e24\u4e2a\u4e3b\u8981\u7ec4\u4ef6\uff1a\u7f16\u8bd1\u5668\u548c\u6267\u884c\u5668\u3002\u7f16\u8bd1\u5668\u5c06HiveQL\u67e5\u8be2\u7f16\u8bd1\u6210\u62bd\u8c61\u8bed\u6cd5\u6811\uff0c\u7136\u540e\u5c06\u5176\u8f6c\u6362\u4e3aMapReduce\u4f5c\u4e1a\u3002\u6267\u884c\u5668\u8d1f\u8d23\u8fd0\u884cMapReduce\u4f5c\u4e1a\u5e76\u5904\u7406\u67e5\u8be2\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>Hadoop\u96c6\u7fa4\uff1aHadoop\u96c6\u7fa4\u662fHive\u7684\u57fa\u7840\u8bbe\u65bd\uff0cHive\u9700\u8981\u4f7f\u7528Hadoop\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff08HDFS\uff09\u5b58\u50a8\u6570\u636e\uff0c\u5e76\u4f7f\u7528Hadoop MapReduce\u4f5c\u4e1a\u6765\u5904\u7406\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u5b58\u50a8\uff1aHive\u53ef\u4ee5\u5c06\u6570\u636e\u5b58\u50a8\u5728Hadoop\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff08HDFS\uff09\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u5b58\u50a8\u5728\u5176\u4ed6\u5b58\u50a8\u7cfb\u7edf\uff0c\u5982HBase\u3001Amazon S3\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u7684\u67b6\u6784\u5305\u62ec\u591a\u4e2a\u7ec4\u4ef6\uff0c\u5305\u62ec\u5ba2\u6237\u7aef\u3001\u5143\u6570\u636e\u5b58\u50a8\u670d\u52a1\u3001\u9a71\u52a8\u7a0b\u5e8f\u3001\u6267\u884c\u5f15\u64ce\u3001Hadoop\u96c6\u7fa4\u548c\u6570\u636e\u5b58\u50a8\u3002\u8fd9\u4e9b\u7ec4\u4ef6\u5171\u540c\u5de5\u4f5c\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u636e\u4ed3\u5e93\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b58\u50a8\u3001\u7ba1\u7406\u548c\u5206\u6790\u5927\u89c4\u6a21\u6570\u636e\u96c6\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\u91caHive\u6570\u636e\u6a21\u578b<\/p>\n\n\n\n<p>Hive\u6570\u636e\u6a21\u578b\u662fHive\u7528\u4e8e\u5904\u7406\u548c\u7ba1\u7406\u6570\u636e\u7684\u57fa\u672c\u7ed3\u6784\u3002Hive\u6570\u636e\u6a21\u578b\u57fa\u4e8e\u8868\u548c\u5206\u533a\u7684\u6982\u5ff5\uff0c\u5e76\u652f\u6301\u7ed3\u6784\u5316\u548c\u975e\u7ed3\u6784\u5316\u6570\u636e\u7684\u5b58\u50a8\u548c\u7ba1\u7406\u3002\u4ee5\u4e0b\u662fHive\u6570\u636e\u6a21\u578b\u7684\u4e3b\u8981\u7ec4\u6210\u90e8\u5206\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8868\uff1aHive\u4e2d\u7684\u8868\u662f\u4e00\u79cd\u903b\u8f91\u7ed3\u6784\uff0c\u5b83\u7c7b\u4f3c\u4e8e\u4f20\u7edf\u6570\u636e\u5e93\u4e2d\u7684\u8868\u3002\u8868\u7531\u5217\u7ec4\u6210\uff0c\u6bcf\u5217\u6709\u4e00\u4e2a\u5217\u540d\u548c\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\u3002Hive\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08\u5982\u5b57\u7b26\u4e32\u3001\u6574\u6570\u3001\u6d6e\u70b9\u6570\u7b49\uff09\u548c\u590d\u6742\u6570\u636e\u7c7b\u578b\uff08\u5982\u6570\u7ec4\u3001\u7ed3\u6784\u4f53\u7b49\uff09\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7CREATE TABLE\u8bed\u53e5\u521b\u5efa\u8868\uff0c\u5e76\u4f7f\u7528INSERT INTO\u8bed\u53e5\u5c06\u6570\u636e\u63d2\u5165\u8868\u4e2d\u3002<\/li>\n\n\n\n<li>\u5206\u533a\uff1aHive\u4e2d\u7684\u5206\u533a\u662f\u5c06\u8868\u6570\u636e\u6309\u7167\u67d0\u4e2a\u7279\u5b9a\u7684\u6807\u51c6\u5212\u5206\u6210\u591a\u4e2a\u90e8\u5206\u3002Hive\u652f\u6301\u4e24\u79cd\u7c7b\u578b\u7684\u5206\u533a\uff1a\u9759\u6001\u5206\u533a\u548c\u52a8\u6001\u5206\u533a\u3002\u9759\u6001\u5206\u533a\u662f\u5728\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u7684\uff0c\u800c\u52a8\u6001\u5206\u533a\u662f\u5728\u63d2\u5165\u6570\u636e\u65f6\u6839\u636e\u6570\u636e\u7684\u7279\u5b9a\u5c5e\u6027\u81ea\u52a8\u521b\u5efa\u7684\u3002\u5206\u533a\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u5feb\u5730\u67e5\u8be2\u548c\u8fc7\u6ee4\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u6876\uff1aHive\u4e2d\u7684\u6876\u662f\u5c06\u8868\u6570\u636e\u5212\u5206\u4e3a\u4e00\u5b9a\u6570\u91cf\u7684\u90e8\u5206\uff0c\u6bcf\u4e2a\u90e8\u5206\u79f0\u4e3a\u4e00\u4e2a\u6876\u3002\u6876\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u5728\u67e5\u8be2\u4e2d\u51cf\u5c11\u9700\u8981\u626b\u63cf\u7684\u6570\u636e\u91cf\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7CREATE TABLE\u8bed\u53e5\u6307\u5b9a\u6876\u7684\u6570\u91cf\u548c\u6876\u7684\u5217\uff0c\u4ee5\u53ca\u901a\u8fc7INSERT INTO\u8bed\u53e5\u5c06\u6570\u636e\u63d2\u5165\u6876\u4e2d\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u683c\u5f0f\uff1aHive\u652f\u6301\u591a\u79cd\u6570\u636e\u683c\u5f0f\uff0c\u5305\u62ec\u6587\u672c\u683c\u5f0f\u3001\u5e8f\u5217\u6587\u4ef6\u683c\u5f0f\u3001RC\u6587\u4ef6\u683c\u5f0f\u3001Parquet\u6587\u4ef6\u683c\u5f0f\u7b49\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7CREATE TABLE\u8bed\u53e5\u6307\u5b9a\u8868\u7684\u6570\u636e\u683c\u5f0f\uff0c\u5e76\u4f7f\u7528\u76f8\u5e94\u7684\u6570\u636e\u52a0\u8f7d\u5de5\u5177\u5c06\u6570\u636e\u52a0\u8f7d\u5230\u8868\u4e2d\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u7684\u6570\u636e\u6a21\u578b\u662f\u57fa\u4e8e\u8868\u548c\u5206\u533a\u7684\u6982\u5ff5\uff0c\u652f\u6301\u7ed3\u6784\u5316\u548c\u975e\u7ed3\u6784\u5316\u6570\u636e\u7684\u5b58\u50a8\u548c\u7ba1\u7406\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u8868\u3001\u5b9a\u4e49\u5206\u533a\u3001\u6307\u5b9a\u6876\u7b49\u64cd\u4f5c\u6765\u7ba1\u7406\u6570\u636e\uff0c\u5e76\u4f7f\u7528\u4e0d\u540c\u7684\u6570\u636e\u683c\u5f0f\u6765\u5904\u7406\u6570\u636e\u3002\u8fd9\u4e9b\u529f\u80fd\u4f7f\u5f97Hive\u6210\u4e3a\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u96c6\u548c\u8fdb\u884c\u6570\u636e\u5206\u6790\u7684\u5f3a\u5927\u5de5\u5177\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\u91caHive\u6570\u636e\u7c7b\u578b<\/p>\n\n\n\n<p>Hive\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u57fa\u672c\u6570\u636e\u7c7b\u578b\u548c\u590d\u6742\u6570\u636e\u7c7b\u578b\u3002\u4ee5\u4e0b\u662fHive\u652f\u6301\u7684\u4e3b\u8981\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>BOOLEAN\uff1a\u5e03\u5c14\u7c7b\u578b\uff0c\u53d6\u503c\u4e3atrue\u6216false\u3002<\/li>\n\n\n\n<li>TINYINT\uff1a8\u4f4d\u5e26\u7b26\u53f7\u6574\u6570\u7c7b\u578b\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-128\u5230127\u3002<\/li>\n\n\n\n<li>SMALLINT\uff1a16\u4f4d\u5e26\u7b26\u53f7\u6574\u6570\u7c7b\u578b\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-32768\u523032767\u3002<\/li>\n\n\n\n<li>INT\uff1a32\u4f4d\u5e26\u7b26\u53f7\u6574\u6570\u7c7b\u578b\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-2147483648\u52302147483647\u3002<\/li>\n\n\n\n<li>BIGINT\uff1a64\u4f4d\u5e26\u7b26\u53f7\u6574\u6570\u7c7b\u578b\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-9223372036854775808\u52309223372036854775807\u3002<\/li>\n\n\n\n<li>FLOAT\uff1a\u5355\u7cbe\u5ea6\u6d6e\u70b9\u6570\u7c7b\u578b\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-3.40282347E+38\u52303.40282347E+38\u3002<\/li>\n\n\n\n<li>DOUBLE\uff1a\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u7c7b\u578b\uff0c\u53d6\u503c\u8303\u56f4\u4e3a-1.7976931348623157E+308\u52301.7976931348623157E+308\u3002<\/li>\n\n\n\n<li>STRING\uff1a\u5b57\u7b26\u4e32\u7c7b\u578b\uff0c\u957f\u5ea6\u4e0d\u9650\u3002<\/li>\n\n\n\n<li>TIMESTAMP\uff1a\u65f6\u95f4\u6233\u7c7b\u578b\uff0c\u7cbe\u5ea6\u5230\u7eb3\u79d2\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u590d\u6742\u6570\u636e\u7c7b\u578b\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ARRAY\uff1a\u6570\u7ec4\u7c7b\u578b\uff0c\u5305\u542b\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u5217\u8868\u3002<\/li>\n\n\n\n<li>MAP\uff1a\u6620\u5c04\u7c7b\u578b\uff0c\u5305\u542b\u952e\u503c\u5bf9\u5217\u8868\uff0c\u952e\u548c\u503c\u53ef\u4ee5\u662f\u4efb\u610f\u6570\u636e\u7c7b\u578b\u3002<\/li>\n\n\n\n<li>STRUCT\uff1a\u7ed3\u6784\u4f53\u7c7b\u578b\uff0c\u5305\u542b\u547d\u540d\u5b57\u6bb5\u5217\u8868\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u53ef\u4ee5\u662f\u4efb\u610f\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u9664\u4e86\u4e0a\u8ff0\u6570\u636e\u7c7b\u578b\uff0cHive\u8fd8\u652f\u6301\u5176\u4ed6\u4e00\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u5982DATE\u3001DECIMAL\u3001BINARY\u7b49\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7CREATE TABLE\u8bed\u53e5\u6307\u5b9a\u8868\u7684\u5217\u548c\u6570\u636e\u7c7b\u578b\uff0c\u4ee5\u53ca\u901a\u8fc7INSERT INTO\u8bed\u53e5\u5c06\u6570\u636e\u63d2\u5165\u8868\u4e2d\u3002\u540c\u65f6\uff0c\u7528\u6237\u53ef\u4ee5\u5728HiveQL\u67e5\u8be2\u4e2d\u4f7f\u7528\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\u8fdb\u884c\u67e5\u8be2\u3001\u805a\u5408\u3001\u8fc7\u6ee4\u7b49\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u652f\u6301\u591a\u79cd\u57fa\u672c\u6570\u636e\u7c7b\u578b\u548c\u590d\u6742\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u5e03\u5c14\u3001\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u4e32\u3001\u65f6\u95f4\u6233\u3001\u6570\u7ec4\u3001\u6620\u5c04\u3001\u7ed3\u6784\u4f53\u7b49\u3002\u8fd9\u4e9b\u6570\u636e\u7c7b\u578b\u4f7f\u5f97Hive\u80fd\u591f\u5904\u7406\u5404\u79cd\u7c7b\u578b\u7684\u6570\u636e\uff0c\u5e76\u4e3a\u7528\u6237\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u67e5\u8be2\u548c\u5206\u6790\u9009\u9879\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\u91caHive\u67e5\u8be2\u8bed\u8a00\u548cSQL\u8bed\u53e5<\/p>\n\n\n\n<p>Hive\u67e5\u8be2\u8bed\u8a00\uff08HiveQL\uff09\u662fHive\u7528\u4e8e\u67e5\u8be2\u548c\u5904\u7406\u6570\u636e\u7684\u8bed\u8a00\uff0c\u5b83\u7c7b\u4f3c\u4e8eSQL\u8bed\u8a00\uff0c\u5e76\u652f\u6301SQL\u7684\u5927\u591a\u6570\u8bed\u6cd5\u548c\u51fd\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684HiveQL\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efa\u8868\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE table_name (column_name data_type, ...)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u8868\uff0c\u53ef\u4ee5\u6307\u5b9a\u8868\u540d\u3001\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u7b49\u4fe1\u606f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u63d2\u5165\u6570\u636e\uff1a<\/li>\n<\/ol>\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>\u8fd9\u4e2a\u8bed\u53e5\u7528\u4e8e\u5c06\u6570\u636e\u63d2\u5165\u5230\u5df2\u6709\u7684\u8868\u4e2d\uff0c\u53ef\u4ee5\u6307\u5b9a\u5217\u540d\u548c\u503c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u67e5\u8be2\u6570\u636e\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT column_name1, column_name2, ... FROM table_name WHERE condition\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u7528\u4e8e\u67e5\u8be2\u8868\u4e2d\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u6307\u5b9a\u5217\u540d\u3001\u6761\u4ef6\u7b49\u4fe1\u606f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u66f4\u65b0\u6570\u636e\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>UPDATE table_name SET column_name = value WHERE condition\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u6307\u5b9a\u5217\u540d\u3001\u65b0\u503c\u548c\u6761\u4ef6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u5220\u9664\u6570\u636e\uff1a<\/li>\n<\/ol>\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>\u8fd9\u4e2a\u8bed\u53e5\u7528\u4e8e\u5220\u9664\u8868\u4e2d\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u6307\u5b9a\u6761\u4ef6\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u4e0a\u8ff0\u8bed\u53e5\uff0cHiveQL\u8fd8\u652f\u6301\u5176\u4ed6\u4e00\u4e9b\u8bed\u6cd5\u548c\u51fd\u6570\uff0c\u5982GROUP BY\u3001ORDER BY\u3001JOIN\u3001COUNT\u3001SUM\u7b49\u3002HiveQL\u8bed\u53e5\u53ef\u4ee5\u5728Hive\u547d\u4ee4\u884c\u754c\u9762\u6216\u5176\u4ed6\u5ba2\u6237\u7aef\u5de5\u5177\u4e2d\u6267\u884c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHiveQL\u662f\u4e00\u79cd\u7c7b\u4f3c\u4e8eSQL\u7684\u67e5\u8be2\u8bed\u8a00\uff0c\u53ef\u4ee5\u7528\u4e8e\u67e5\u8be2\u548c\u5904\u7406\u6570\u636e\u3002\u5b83\u652f\u6301\u8bb8\u591a\u5e38\u7528\u7684SQL\u8bed\u6cd5\u548c\u51fd\u6570\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6269\u5c55\u529f\u80fd\uff0c\u5982\u6570\u7ec4\u3001\u6620\u5c04\u3001\u7ed3\u6784\u4f53\u7b49\u6570\u636e\u7c7b\u578b\u3002\u901a\u8fc7\u4f7f\u7528HiveQL\u8bed\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u67e5\u8be2\u3001\u66f4\u65b0\u3001\u5220\u9664\u7b49\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\u521b\u5efa\u8868\u548c\u5220\u9664\u8868<\/p>\n\n\n\n<p>\u521b\u5efa\u8868\u548c\u5220\u9664\u8868\u662fHive\u4e2d\u5e38\u7528\u7684\u64cd\u4f5c\u4e4b\u4e00\uff0c\u4ee5\u4e0b\u662f\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efa\u8868<\/li>\n<\/ol>\n\n\n\n<p>Hive\u4f7f\u7528CREATE TABLE\u8bed\u53e5\u521b\u5efa\u8868\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>CREATE TABLE [IF NOT EXISTS] table_name \n(column_name data_type [COMMENT column_comment], ...)\n[PARTITIONED BY (col_name data_type [COMMENT col_comment], ...)]\n[CLUSTERED BY (col_name, col_name, ...) [SORTED BY (col_name [ASC|DESC], ...)] INTO num_buckets BUCKETS]\n[ROW FORMAT row_format]\n[STORED AS file_format]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u5305\u62ec\u4e86\u8868\u7684\u540d\u79f0\u3001\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u5217\u6ce8\u91ca\u3001\u5206\u533a\u3001\u6876\u3001\u5b58\u50a8\u683c\u5f0f\u7b49\u4fe1\u606f\u3002\u5176\u4e2d\uff0cIF NOT EXISTS\u662f\u53ef\u9009\u7684\uff0c\u7528\u4e8e\u907f\u514d\u5728\u8868\u5df2\u7ecf\u5b58\u5728\u7684\u60c5\u51b5\u4e0b\u91cd\u590d\u521b\u5efa\u8868\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aemployee\u7684\u8868\uff0c\u5305\u62ec\u4e24\u5217id\u548cname\uff0c\u6570\u636e\u7c7b\u578b\u5206\u522b\u4e3aINT\u548cSTRING\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE employee (id INT, name STRING);\n<\/code><\/pre>\n\n\n\n<p>\u7528\u6237\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u5176\u4ed6\u53c2\u6570\u6765\u6307\u5b9a\u5206\u533a\u3001\u6876\u3001\u5b58\u50a8\u683c\u5f0f\u7b49\u4fe1\u606f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5220\u9664\u8868<\/li>\n<\/ol>\n\n\n\n<p>Hive\u4f7f\u7528DROP TABLE\u8bed\u53e5\u5220\u9664\u8868\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DROP TABLE [IF EXISTS] table_name\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u53ea\u9700\u8981\u6307\u5b9a\u8868\u7684\u540d\u79f0\u5373\u53ef\u5220\u9664\u8868\u3002\u5176\u4e2d\uff0cIF EXISTS\u662f\u53ef\u9009\u7684\uff0c\u7528\u4e8e\u907f\u514d\u5728\u8868\u4e0d\u5b58\u5728\u7684\u60c5\u51b5\u4e0b\u5220\u9664\u8868\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u7528\u4e8e\u5220\u9664\u540d\u4e3aemployee\u7684\u8868\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>DROP TABLE employee;\n<\/code><\/pre>\n\n\n\n<p>\u7528\u6237\u8fd8\u53ef\u4ee5\u5728\u8868\u540d\u540e\u6dfb\u52a0\u5176\u4ed6\u53c2\u6570\uff0c\u5982RESTRICT\u6216CASCADE\uff0c\u7528\u4e8e\u6307\u5b9a\u5220\u9664\u7ea6\u675f\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u521b\u5efa\u8868\u548c\u5220\u9664\u8868\u662fHive\u4e2d\u5e38\u7528\u7684\u64cd\u4f5c\u4e4b\u4e00\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528CREATE TABLE\u548cDROP TABLE\u8bed\u53e5\u6765\u521b\u5efa\u548c\u5220\u9664\u8868\u3002\u521b\u5efa\u8868\u53ef\u4ee5\u6307\u5b9a\u8868\u7684\u540d\u79f0\u3001\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u5217\u6ce8\u91ca\u3001\u5206\u533a\u3001\u6876\u3001\u5b58\u50a8\u683c\u5f0f\u7b49\u4fe1\u606f\uff0c\u800c\u5220\u9664\u8868\u53ea\u9700\u8981\u6307\u5b9a\u8868\u7684\u540d\u79f0\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\u91caHive\u8868\u7684\u5143\u6570\u636e<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u8868\u7684\u5143\u6570\u636e\u662f\u5b58\u50a8\u5728Hive Metastore\u4e2d\u7684\uff0c\u5b83\u5305\u542b\u4e86\u5173\u4e8e\u8868\u7684\u4fe1\u606f\uff0c\u5982\u8868\u7684\u540d\u79f0\u3001\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u5206\u533a\u3001\u6876\u3001\u5b58\u50a8\u683c\u5f0f\u3001\u8868\u7684\u6240\u6709\u8005\u7b49\u7b49\u3002\u4ee5\u4e0b\u662fHive\u8868\u5143\u6570\u636e\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8868\u7684\u540d\u79f0\uff1a\u8868\u7684\u540d\u79f0\u662f\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\u7684\uff0c\u5b83\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u3002<\/li>\n\n\n\n<li>\u5217\u7684\u540d\u79f0\u548c\u6570\u636e\u7c7b\u578b\uff1a\u5217\u7684\u540d\u79f0\u548c\u6570\u636e\u7c7b\u578b\u662f\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\u7684\uff0c\u5b83\u4eec\u63cf\u8ff0\u4e86\u8868\u4e2d\u5305\u542b\u7684\u5217\u548c\u5217\u7684\u6570\u636e\u7c7b\u578b\u3002<\/li>\n\n\n\n<li>\u5206\u533a\uff1a\u5206\u533a\u662f\u5c06\u8868\u6570\u636e\u6309\u7167\u67d0\u4e2a\u7279\u5b9a\u7684\u6807\u51c6\u5212\u5206\u6210\u591a\u4e2a\u90e8\u5206\u3002\u5206\u533a\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u5feb\u5730\u67e5\u8be2\u548c\u8fc7\u6ee4\u6570\u636e\u3002\u5206\u533a\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\uff0c\u4e5f\u53ef\u4ee5\u5728\u63d2\u5165\u6570\u636e\u65f6\u6839\u636e\u6570\u636e\u7684\u7279\u5b9a\u5c5e\u6027\u81ea\u52a8\u521b\u5efa\u3002<\/li>\n\n\n\n<li>\u6876\uff1a\u6876\u662f\u5c06\u8868\u6570\u636e\u5212\u5206\u4e3a\u4e00\u5b9a\u6570\u91cf\u7684\u90e8\u5206\uff0c\u6bcf\u4e2a\u90e8\u5206\u79f0\u4e3a\u4e00\u4e2a\u6876\u3002\u6876\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u5728\u67e5\u8be2\u4e2d\u51cf\u5c11\u9700\u8981\u626b\u63cf\u7684\u6570\u636e\u91cf\u3002\u6876\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\u3002<\/li>\n\n\n\n<li>\u5b58\u50a8\u683c\u5f0f\uff1a\u5b58\u50a8\u683c\u5f0f\u662f\u6307\u8868\u4e2d\u6570\u636e\u7684\u7269\u7406\u5b58\u50a8\u683c\u5f0f\uff0c\u5982\u6587\u672c\u683c\u5f0f\u3001\u5e8f\u5217\u6587\u4ef6\u683c\u5f0f\u3001RC\u6587\u4ef6\u683c\u5f0f\u3001Parquet\u6587\u4ef6\u683c\u5f0f\u7b49\u3002\u5b58\u50a8\u683c\u5f0f\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\u3002<\/li>\n\n\n\n<li>\u8868\u7684\u6240\u6709\u8005\uff1a\u8868\u7684\u6240\u6709\u8005\u662f\u521b\u5efa\u8868\u7684\u7528\u6237\uff0c\u4ed6\u4eec\u5bf9\u8868\u6709\u5b8c\u5168\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u6743\u9650\u3002<\/li>\n\n\n\n<li>\u8868\u7684\u521b\u5efa\u65f6\u95f4\u548c\u66f4\u65b0\u65f6\u95f4\uff1a\u8868\u7684\u521b\u5efa\u65f6\u95f4\u548c\u66f4\u65b0\u65f6\u95f4\u8bb0\u5f55\u4e86\u8868\u521b\u5efa\u548c\u66f4\u65b0\u7684\u65f6\u95f4\u6233\uff0c\u53ef\u4ee5\u7528\u4e8e\u8868\u7684\u7ba1\u7406\u548c\u7248\u672c\u63a7\u5236\u3002<\/li>\n\n\n\n<li>\u8868\u7684\u7edf\u8ba1\u4fe1\u606f\uff1a\u8868\u7684\u7edf\u8ba1\u4fe1\u606f\u5305\u62ec\u4e86\u8868\u7684\u5927\u5c0f\u3001\u884c\u6570\u3001\u5206\u533a\u6570\u91cf\u7b49\u4fe1\u606f\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u4f18\u5316Hive\u67e5\u8be2\u7684\u6027\u80fd\u3002<\/li>\n<\/ol>\n\n\n\n<p>Hive\u8868\u7684\u5143\u6570\u636e\u53ef\u4ee5\u901a\u8fc7DESCRIBE\u8bed\u53e5\u6765\u67e5\u770b\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528Hive Metastore API\u6765\u67e5\u8be2\u3002\u901a\u8fc7\u5143\u6570\u636e\uff0c\u7528\u6237\u53ef\u4ee5\u4e86\u89e3\u8868\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5e76\u5bf9\u8868\u8fdb\u884c\u7ba1\u7406\u548c\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u8868\u7684\u5143\u6570\u636e\u5305\u542b\u4e86\u5173\u4e8e\u8868\u7684\u5404\u79cd\u4fe1\u606f\uff0c\u5982\u8868\u7684\u540d\u79f0\u3001\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u5206\u533a\u3001\u6876\u3001\u5b58\u50a8\u683c\u5f0f\u3001\u8868\u7684\u6240\u6709\u8005\u7b49\u7b49\u3002\u5143\u6570\u636e\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u4e86\u89e3\u8868\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5e76\u5bf9\u8868\u8fdb\u884c\u7ba1\u7406\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\u91caHive\u8868\u7684\u5206\u533a<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u5206\u533a\u662f\u5c06\u8868\u6570\u636e\u6309\u7167\u67d0\u4e2a\u7279\u5b9a\u7684\u6807\u51c6\u5212\u5206\u6210\u591a\u4e2a\u90e8\u5206\u7684\u4e00\u79cd\u673a\u5236\u3002\u5206\u533a\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u5feb\u5730\u67e5\u8be2\u548c\u8fc7\u6ee4\u6570\u636e\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u5927\u578b\u6570\u636e\u96c6\u65f6\u3002\u4ee5\u4e0b\u662fHive\u8868\u5206\u533a\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u5206\u533a<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u5206\u533a\uff0c\u6307\u5b9a\u5206\u533a\u5217\u548c\u5206\u533a\u6570\u636e\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aemployee\u7684\u8868\uff0c\u5305\u62ec\u4e24\u5217id\u548cname\uff0c\u4ee5\u53ca\u6309\u7167\u90e8\u95e8\u5206\u533a\u7684\u5206\u533a\u5217department\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE employee (id INT, name STRING) PARTITIONED BY (department STRING);\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u63d2\u5165\u6570\u636e\u5230\u5206\u533a<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u63d2\u5165\u6570\u636e\u65f6\uff0c\u7528\u6237\u53ef\u4ee5\u6307\u5b9a\u5206\u533a\u5217\u7684\u503c\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT INTO TABLE employee PARTITION (department='sales') VALUES (1, 'John');\nINSERT INTO TABLE employee PARTITION (department='marketing') VALUES (2, 'Jane');\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06\u6570\u636e\u63d2\u5165\u5230employee\u8868\u4e2d\uff0c\u5e76\u6307\u5b9a\u6570\u636e\u6240\u5c5e\u7684\u90e8\u95e8\u5206\u533a\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u67e5\u8be2\u5206\u533a\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u4f7f\u7528SELECT\u8bed\u53e5\u67e5\u8be2\u7279\u5b9a\u5206\u533a\u7684\u6570\u636e\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT * FROM employee WHERE department='sales';\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u5c06\u53ea\u8fd4\u56dedepartment\u4e3asales\u7684\u6570\u636e\u884c\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6dfb\u52a0\u6216\u5220\u9664\u5206\u533a<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u4f7f\u7528ALTER TABLE\u8bed\u53e5\u6dfb\u52a0\u6216\u5220\u9664\u5206\u533a\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>ALTER TABLE employee ADD PARTITION (department='hr');\nALTER TABLE employee DROP PARTITION (department='marketing');\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u53ef\u4ee5\u6dfb\u52a0\u6216\u5220\u9664employee\u8868\u7684\u7279\u5b9a\u5206\u533a\u3002\u5728\u6dfb\u52a0\u5206\u533a\u65f6\uff0c\u7528\u6237\u9700\u8981\u6307\u5b9a\u5206\u533a\u5217\u7684\u503c\uff0c\u800c\u5728\u5220\u9664\u5206\u533a\u65f6\uff0c\u7528\u6237\u9700\u8981\u6307\u5b9a\u8981\u5220\u9664\u7684\u5206\u533a\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u8868\u5206\u533a\u662f\u5c06\u8868\u6570\u636e\u6309\u7167\u67d0\u4e2a\u7279\u5b9a\u7684\u6807\u51c6\u5212\u5206\u6210\u591a\u4e2a\u90e8\u5206\u7684\u4e00\u79cd\u673a\u5236\u3002\u7528\u6237\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u5206\u533a\uff0c\u4e5f\u53ef\u4ee5\u5728\u63d2\u5165\u6570\u636e\u65f6\u6307\u5b9a\u5206\u533a\u5217\u7684\u503c\u3002\u5206\u533a\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\uff0c\u5e76\u5141\u8bb8\u7528\u6237\u5bf9\u7279\u5b9a\u5206\u533a\u8fdb\u884c\u7ba1\u7406\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\u91caHive\u8868\u7684\u6876<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u6876\u662f\u5c06\u8868\u6570\u636e\u5212\u5206\u4e3a\u4e00\u5b9a\u6570\u91cf\u7684\u90e8\u5206\uff0c\u6bcf\u4e2a\u90e8\u5206\u79f0\u4e3a\u4e00\u4e2a\u6876\u3002\u6876\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u5728\u67e5\u8be2\u4e2d\u51cf\u5c11\u9700\u8981\u626b\u63cf\u7684\u6570\u636e\u91cf\u3002\u4ee5\u4e0b\u662fHive\u8868\u6876\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u6876<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u6876\uff0c\u6307\u5b9a\u6876\u5217\u548c\u6876\u6570\u91cf\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aemployee\u7684\u8868\uff0c\u5305\u62ec\u4e24\u5217id\u548cname\uff0c\u5e76\u5c06\u6570\u636e\u6839\u636eid\u5217\u5212\u5206\u4e3a8\u4e2a\u6876\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE employee (id INT, name STRING) CLUSTERED BY (id) INTO 8 BUCKETS;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06\u6570\u636e\u6839\u636eid\u5217\u5212\u5206\u4e3a8\u4e2a\u6876\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u63d2\u5165\u6570\u636e\u5230\u6876<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u63d2\u5165\u6570\u636e\u65f6\uff0c\u7528\u6237\u53ef\u4ee5\u6307\u5b9a\u6876\u5217\u7684\u503c\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT INTO TABLE employee CLUSTER BY (id) VALUES (1, 'John');\nINSERT INTO TABLE employee CLUSTER BY (id) VALUES (2, 'Jane');\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06\u6570\u636e\u63d2\u5165\u5230employee\u8868\u4e2d\uff0c\u5e76\u6307\u5b9a\u6570\u636e\u6240\u5c5e\u7684\u6876\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u67e5\u8be2\u6876\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u4f7f\u7528SELECT\u8bed\u53e5\u67e5\u8be2\u7279\u5b9a\u6876\u7684\u6570\u636e\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT * FROM employee WHERE id BETWEEN 1 AND 10;\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u8bed\u53e5\u5c06\u53ea\u626b\u63cfid\u57281\u523010\u4e4b\u95f4\u7684\u6570\u636e\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u91cd\u65b0\u5212\u5206\u6876<\/li>\n<\/ol>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u9700\u8981\u91cd\u65b0\u5212\u5206\u6876\uff0c\u53ef\u4ee5\u4f7f\u7528CLUSTERED BY\u8bed\u53e5\u91cd\u65b0\u5b9a\u4e49\u6876\u5217\u548c\u6876\u6570\u91cf\uff0c\u7136\u540e\u4f7f\u7528INSERT OVERWRITE\u8bed\u53e5\u5c06\u6570\u636e\u63d2\u5165\u5230\u65b0\u7684\u6876\u4e2d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE TABLE new_employee (id INT, name STRING) CLUSTERED BY (id) INTO 16 BUCKETS;\nINSERT OVERWRITE TABLE new_employee SELECT * FROM employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06employee\u8868\u7684\u6570\u636e\u91cd\u65b0\u5212\u5206\u4e3a16\u4e2a\u6876\uff0c\u5e76\u5c06\u6570\u636e\u63d2\u5165\u5230\u65b0\u7684\u6876\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u8868\u6876\u662f\u5c06\u8868\u6570\u636e\u5212\u5206\u4e3a\u4e00\u5b9a\u6570\u91cf\u7684\u90e8\u5206\uff0c\u6bcf\u4e2a\u90e8\u5206\u79f0\u4e3a\u4e00\u4e2a\u6876\u7684\u4e00\u79cd\u673a\u5236\u3002\u7528\u6237\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u6876\uff0c\u4e5f\u53ef\u4ee5\u5728\u63d2\u5165\u6570\u636e\u65f6\u6307\u5b9a\u6876\u5217\u7684\u503c\u3002\u6876\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\uff0c\u5e76\u5141\u8bb8\u7528\u6237\u91cd\u65b0\u5212\u5206\u6876\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u67e5\u8be2\u9700\u6c42\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\u91caHive\u6570\u636e\u7684\u5bfc\u5165\u548c\u5bfc\u51fa<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u6570\u636e\u7684\u5bfc\u5165\u548c\u5bfc\u51fa\u662f\u975e\u5e38\u91cd\u8981\u7684\u64cd\u4f5c\u3002Hive\u63d0\u4f9b\u4e86\u591a\u79cd\u5bfc\u5165\u548c\u5bfc\u51fa\u6570\u636e\u7684\u65b9\u5f0f\uff0c\u5305\u62ec\u4ece\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u3001HDFS\u3001HBase\u3001RDBMS\u7b49\u6570\u636e\u6e90\u4e2d\u5bfc\u5165\u6570\u636e\uff0c\u4ee5\u53ca\u5c06\u6570\u636e\u5bfc\u51fa\u5230\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u3001HDFS\u7b49\u76ee\u6807\u6570\u636e\u6e90\u4e2d\u3002\u4ee5\u4e0b\u662fHive\u6570\u636e\u5bfc\u5165\u548c\u5bfc\u51fa\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4ece\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u5bfc\u5165\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528LOAD DATA\u8bed\u53e5\u5c06\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230Hive\u8868\u4e2d\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u5c06\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\/data\/employee.txt\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>LOAD DATA LOCAL INPATH '\/data\/employee.txt' INTO TABLE employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230\u4e86Hive\u8868\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4eceHDFS\u5bfc\u5165\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528LOAD DATA\u8bed\u53e5\u5c06HDFS\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230Hive\u8868\u4e2d\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u5c06HDFS\u4e2d\u7684\/user\/hive\/employee.txt\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>LOAD DATA INPATH '\/user\/hive\/employee.txt' INTO TABLE employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06HDFS\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230\u4e86Hive\u8868\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4eceRDBMS\u5bfc\u5165\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528Sqoop\u7b49\u5de5\u5177\u5c06\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230Hive\u8868\u4e2d\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u547d\u4ee4\u5c06MySQL\u6570\u636e\u5e93\u4e2d\u7684employee\u8868\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">wasmCopy code<code>sqoop import --connect jdbc:mysql:\/\/localhost\/employee --username user --password pass --table employee --hive-import --hive-table employee\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u4f7f\u7528Sqoop\u5de5\u5177\u5c06MySQL\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u5bfc\u5165\u5230\u4e86Hive\u8868\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u5c06\u6570\u636e\u5bfc\u51fa\u5230\u672c\u5730\u6587\u4ef6\u7cfb\u7edf<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528INSERT OVERWRITE LOCAL DIRECTORY\u8bed\u53e5\u5c06Hive\u8868\u4e2d\u7684\u6570\u636e\u5bfc\u51fa\u5230\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u4e2d\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u5c06\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\u7684\u6570\u636e\u5bfc\u51fa\u5230\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u7684\/data\/employee.txt\u6587\u4ef6\u4e2d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT OVERWRITE LOCAL DIRECTORY '\/data' ROW FORMAT DELIMITED FIELDS TERMINATED BY ',' SELECT * FROM employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06Hive\u8868\u4e2d\u7684\u6570\u636e\u5bfc\u51fa\u5230\u4e86\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u5c06\u6570\u636e\u5bfc\u51fa\u5230HDFS<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528INSERT OVERWRITE DIRECTORY\u8bed\u53e5\u5c06Hive\u8868\u4e2d\u7684\u6570\u636e\u5bfc\u51fa\u5230HDFS\u4e2d\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u5c06\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\u7684\u6570\u636e\u5bfc\u51fa\u5230HDFS\u7684\/user\/hive\/employee\u76ee\u5f55\u4e2d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>INSERT OVERWRITE DIRECTORY '\/user\/hive\/employee' ROW FORMAT DELIMITED FIELDS TERMINATED BY ',' SELECT * FROM employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06Hive\u8868\u4e2d\u7684\u6570\u636e\u5bfc\u51fa\u5230\u4e86HDFS\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u636e\u5bfc\u5165\u548c\u5bfc\u51fa\u7684\u65b9\u5f0f\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u65b9\u5f0f\u6765\u5bfc\u5165\u548c\u5bfc\u51fa\u6570\u636e\u3002\u901a\u8fc7\u6570\u636e\u5bfc\u5165\u548c\u5bfc\u51fa\uff0c\u7528\u6237\u53ef\u4ee5\u5c06\u6570\u636e\u4ece\u4e0d\u540c\u7684\u6570\u636e\u6e90\u4e2d\u5bfc\u5165\u5230Hive\u4e2d\uff0c\u6216\u8005<\/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\u91caHive\u6570\u636e\u7684\u67e5\u8be2\u548c\u8fc7\u6ee4<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u67e5\u8be2\u548c\u8fc7\u6ee4\u6570\u636e\u662f\u6700\u5e38\u89c1\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002Hive\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u4e8eSQL\u7684\u67e5\u8be2\u8bed\u8a00\uff0c\u5141\u8bb8\u7528\u6237\u5bf9Hive\u8868\u8fdb\u884c\u67e5\u8be2\u548c\u8fc7\u6ee4\u3002\u4ee5\u4e0b\u662fHive\u6570\u636e\u67e5\u8be2\u548c\u8fc7\u6ee4\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u57fa\u672c\u67e5\u8be2<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u4f7f\u7528SELECT\u8bed\u53e5\u67e5\u8be2Hive\u8868\u4e2d\u7684\u6570\u636e\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\u6240\u6709\u7684\u6570\u636e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT * FROM employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u4f7f\u7528SELECT\u8bed\u53e5\u67e5\u8be2\u4e86Hive\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6761\u4ef6\u67e5\u8be2<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u5728SELECT\u8bed\u53e5\u4e2d\u4f7f\u7528WHERE\u5b50\u53e5\u6307\u5b9a\u67e5\u8be2\u6761\u4ef6\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT * FROM employee WHERE age &gt; 30;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u5927\u4e8e30\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u805a\u5408\u67e5\u8be2<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u5728SELECT\u8bed\u53e5\u4e2d\u4f7f\u7528\u805a\u5408\u51fd\u6570\uff0c\u5982SUM\u3001AVG\u3001MAX\u3001MIN\u7b49\u5bf9\u6570\u636e\u8fdb\u884c\u805a\u5408\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u7684\u5e73\u5747\u503c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT AVG(age) FROM employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u4f7f\u7528AVG\u51fd\u6570\u8ba1\u7b97\u4e86\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u5217\u7684\u5e73\u5747\u503c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6392\u5e8f\u67e5\u8be2<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u5728SELECT\u8bed\u53e5\u4e2d\u4f7f\u7528ORDER BY\u5b50\u53e5\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u5927\u4e8e30\u7684\u6570\u636e\uff0c\u5e76\u6309\u7167age\u964d\u5e8f\u6392\u5217\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT * FROM employee WHERE age &gt; 30 ORDER BY age DESC;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u67e5\u8be2\u4e86\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u5927\u4e8e30\u7684\u6570\u636e\uff0c\u5e76\u6309\u7167age\u964d\u5e8f\u6392\u5217\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u5206\u7ec4\u67e5\u8be2<\/li>\n<\/ol>\n\n\n\n<p>\u7528\u6237\u53ef\u4ee5\u5728SELECT\u8bed\u53e5\u4e2d\u4f7f\u7528GROUP BY\u5b50\u53e5\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\u6bcf\u4e2a\u90e8\u95e8\u7684\u5e73\u5747\u85aa\u8d44\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT department, AVG(salary) FROM employee GROUP BY department;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u5c06\u540d\u4e3aemployee\u7684Hive\u8868\u6309\u7167\u90e8\u95e8\u8fdb\u884c\u5206\u7ec4\uff0c\u5e76\u8ba1\u7b97\u6bcf\u4e2a\u90e8\u95e8\u7684\u5e73\u5747\u85aa\u8d44\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u4e8eSQL\u7684\u67e5\u8be2\u8bed\u8a00\uff0c\u5141\u8bb8\u7528\u6237\u5bf9Hive\u8868\u8fdb\u884c\u67e5\u8be2\u548c\u8fc7\u6ee4\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528SELECT\u8bed\u53e5\u8fdb\u884c\u57fa\u672c\u67e5\u8be2\uff0c\u4f7f\u7528WHERE\u5b50\u53e5\u6307\u5b9a\u67e5\u8be2\u6761\u4ef6\uff0c\u4f7f\u7528\u805a\u5408\u51fd\u6570\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff0c\u4f7f\u7528ORDER BY\u5b50\u53e5\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u4ee5\u53ca\u4f7f\u7528GROUP BY\u5b50\u53e5\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u67e5\u8be2\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\u91caHive\u6570\u636e\u7684\u805a\u5408\u548c\u6392\u5e8f<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u805a\u5408\u548c\u6392\u5e8f\u662f\u67e5\u8be2\u6570\u636e\u7684\u5e38\u89c1\u64cd\u4f5c\u4e4b\u4e00\u3002Hive\u63d0\u4f9b\u4e86\u591a\u79cd\u805a\u5408\u548c\u6392\u5e8f\u51fd\u6570\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5bf9\u6570\u636e\u8fdb\u884c\u7edf\u8ba1\u548c\u5206\u6790\u3002\u4ee5\u4e0b\u662fHive\u6570\u636e\u805a\u5408\u548c\u6392\u5e8f\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u805a\u5408\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>Hive\u63d0\u4f9b\u4e86\u591a\u79cd\u805a\u5408\u51fd\u6570\uff0c\u5982SUM\u3001AVG\u3001MAX\u3001MIN\u3001COUNT\u7b49\uff0c\u53ef\u4ee5\u5bf9\u6570\u636e\u8fdb\u884c\u805a\u5408\u7edf\u8ba1\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u7684\u5e73\u5747\u503c\u548c\u6700\u5927\u503c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>SELECT AVG(age), MAX(age) FROM employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u4f7f\u7528AVG\u548cMAX\u51fd\u6570\u8ba1\u7b97\u4e86\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u5217\u7684\u5e73\u5747\u503c\u548c\u6700\u5927\u503c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6392\u5e8f\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>Hive\u63d0\u4f9b\u4e86\u591a\u79cd\u6392\u5e8f\u51fd\u6570\uff0c\u5982ORDER BY\u3001SORT BY\u3001CLUSTER BY\u7b49\uff0c\u53ef\u4ee5\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u5927\u4e8e30\u7684\u6570\u636e\uff0c\u5e76\u6309\u7167age\u964d\u5e8f\u6392\u5217\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT * FROM employee WHERE age &gt; 30 ORDER BY age DESC;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u67e5\u8be2\u4e86\u540d\u4e3aemployee\u7684Hive\u8868\u4e2dage\u5927\u4e8e30\u7684\u6570\u636e\uff0c\u5e76\u6309\u7167age\u964d\u5e8f\u6392\u5217\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u7a97\u53e3\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>Hive\u8fd8\u63d0\u4f9b\u4e86\u7a97\u53e3\u51fd\u6570\uff0c\u53ef\u4ee5\u5bf9\u6570\u636e\u8fdb\u884c\u805a\u5408\u548c\u6392\u5e8f\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u67e5\u8be2\u7ed3\u679c\u4e2d\u663e\u793a\u6bcf\u4e2a\u805a\u5408\u503c\u7684\u884c\u6570\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u8bed\u53e5\u67e5\u8be2\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\u6bcf\u4e2a\u90e8\u95e8\u7684\u5e73\u5747\u85aa\u8d44\uff0c\u5e76\u663e\u793a\u6bcf\u4e2a\u90e8\u95e8\u7684\u85aa\u8d44\u6392\u540d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>SELECT department, AVG(salary), RANK() OVER (PARTITION BY department ORDER BY AVG(salary) DESC) AS rank FROM employee GROUP BY department;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u67e5\u8be2\u4e86\u540d\u4e3aemployee\u7684Hive\u8868\u4e2d\u6bcf\u4e2a\u90e8\u95e8\u7684\u5e73\u5747\u85aa\u8d44\uff0c\u5e76\u4f7f\u7528RANK\u51fd\u6570\u663e\u793a\u4e86\u6bcf\u4e2a\u90e8\u95e8\u7684\u85aa\u8d44\u6392\u540d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u63d0\u4f9b\u4e86\u591a\u79cd\u805a\u5408\u548c\u6392\u5e8f\u51fd\u6570\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5bf9\u6570\u636e\u8fdb\u884c\u7edf\u8ba1\u548c\u5206\u6790\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u805a\u5408\u51fd\u6570\u8ba1\u7b97\u6570\u636e\u7684\u7edf\u8ba1\u91cf\uff0c\u4f7f\u7528\u6392\u5e8f\u51fd\u6570\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u4ee5\u53ca\u4f7f\u7528\u7a97\u53e3\u51fd\u6570\u5bf9\u6570\u636e\u8fdb\u884c\u805a\u5408\u548c\u6392\u5e8f\uff0c\u5e76\u5728\u67e5\u8be2\u7ed3\u679c\u4e2d\u663e\u793a\u805a\u5408\u503c\u7684\u884c\u6570\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\u91caHive\u6027\u80fd\u8c03\u4f18<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u6027\u80fd\u8c03\u4f18\u662f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u548c\u52a0\u901f\u6570\u636e\u5904\u7406\u7684\u91cd\u8981\u6b65\u9aa4\u3002Hive\u63d0\u4f9b\u4e86\u591a\u79cd\u6027\u80fd\u8c03\u4f18\u7684\u65b9\u6cd5\u548c\u6280\u5de7\uff0c\u4ee5\u4e0b\u662fHive\u6027\u80fd\u8c03\u4f18\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u5b58\u50a8\u683c\u5f0f<\/li>\n<\/ol>\n\n\n\n<p>Hive\u652f\u6301\u591a\u79cd\u6570\u636e\u5b58\u50a8\u683c\u5f0f\uff0c\u5982\u6587\u672c\u683c\u5f0f\u3001\u5e8f\u5217\u5316\u683c\u5f0f\u3001\u538b\u7f29\u683c\u5f0f\u7b49\u3002\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5b58\u50a8\u683c\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5904\u7406\u548c\u67e5\u8be2\u6548\u7387\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u538b\u7f29\u683c\u5f0f\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8\u5360\u7528\u7a7a\u95f4\uff0c\u5e76\u52a0\u5feb\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6570\u636e\u5206\u533a\u548c\u6876<\/li>\n<\/ol>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u6570\u636e\u5206\u533a\u548c\u6876\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5904\u7406\u548c\u67e5\u8be2\u6548\u7387\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u67e5\u8be2\u9700\u6c42\u548c\u6570\u636e\u91cf\u7684\u5927\u5c0f\u6765\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5206\u533a\u548c\u6876\u3002\u6570\u636e\u5206\u533a\u53ef\u4ee5\u5c06\u6570\u636e\u5206\u6210\u66f4\u5c0f\u7684\u90e8\u5206\uff0c\u4ece\u800c\u51cf\u5c11\u6570\u636e\u626b\u63cf\u548c\u67e5\u8be2\u65f6\u95f4\uff1b\u6876\u53ef\u4ee5\u5c06\u6570\u636e\u5212\u5206\u4e3a\u4e00\u5b9a\u6570\u91cf\u7684\u90e8\u5206\uff0c\u4ece\u800c\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u67e5\u8be2\u4f18\u5316<\/li>\n<\/ol>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u67e5\u8be2\u4f18\u5316\u662f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528EXPLAIN\u547d\u4ee4\u6765\u67e5\u770b\u67e5\u8be2\u6267\u884c\u8ba1\u5212\uff0c\u5e76\u6839\u636e\u67e5\u8be2\u6267\u884c\u8ba1\u5212\u6765\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528JOIN\u8bed\u53e5\u4ee3\u66ff\u5b50\u67e5\u8be2\uff0c\u6216\u8005\u4f7f\u7528MAPJOIN\u6765\u63d0\u9ad8JOIN\u64cd\u4f5c\u7684\u6548\u7387\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6570\u636e\u538b\u7f29<\/li>\n<\/ol>\n\n\n\n<p>Hive\u652f\u6301\u591a\u79cd\u6570\u636e\u538b\u7f29\u65b9\u5f0f\uff0c\u5982LZO\u3001Snappy\u3001Gzip\u7b49\u3002\u4f7f\u7528\u6570\u636e\u538b\u7f29\u53ef\u4ee5\u51cf\u5c11\u6570\u636e\u5b58\u50a8\u548c\u4f20\u8f93\u7684\u5927\u5c0f\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u5904\u7406\u548c\u67e5\u8be2\u6548\u7387\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u6570\u636e\u7c7b\u578b\u548c\u67e5\u8be2\u9700\u6c42\u6765\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u538b\u7f29\u65b9\u5f0f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u8d44\u6e90\u8c03\u4f18<\/li>\n<\/ol>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u8d44\u6e90\u8c03\u4f18\u662f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u5185\u5b58\u3001CPU\u7b49\u8d44\u6e90\u6765\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u52a8\u6001\u5206\u533a\u5206\u914d\u5185\u5b58\u3001\u8bbe\u7f6emapred.reduce.tasks\u53c2\u6570\u6765\u8c03\u6574reduce\u4efb\u52a1\u6570\u7b49\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u6027\u80fd\u8c03\u4f18\u662f\u63d0\u9ad8\u6570\u636e\u5904\u7406\u548c\u67e5\u8be2\u6548\u7387\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u7528\u6237\u53ef\u4ee5\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5b58\u50a8\u683c\u5f0f\u3001\u6570\u636e\u5206\u533a\u548c\u6876\u3001\u67e5\u8be2\u4f18\u5316\u65b9\u5f0f\u3001\u6570\u636e\u538b\u7f29\u65b9\u5f0f\u4ee5\u53ca\u8d44\u6e90\u8c03\u4f18\u65b9\u5f0f\u6765\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u548c\u52a0\u901f\u6570\u636e\u5904\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\u91caHive\u67e5\u8be2\u4f18\u5316<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u67e5\u8be2\u4f18\u5316\u662f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u548c\u6027\u80fd\u7684\u5173\u952e\u6b65\u9aa4\u3002Hive\u63d0\u4f9b\u4e86\u591a\u79cd\u67e5\u8be2\u4f18\u5316\u6280\u5de7\u548c\u65b9\u6cd5\uff0c\u4ee5\u4e0b\u662fHive\u67e5\u8be2\u4f18\u5316\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f7f\u7528EXPLAIN\u547d\u4ee4<\/li>\n<\/ol>\n\n\n\n<p>\u4f7f\u7528EXPLAIN\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u67e5\u8be2\u6267\u884c\u8ba1\u5212\uff0c\u4ee5\u786e\u5b9a\u67e5\u8be2\u662f\u5426\u5b58\u5728\u6f5c\u5728\u7684\u6027\u80fd\u95ee\u9898\u3002\u901a\u8fc7\u67e5\u8be2\u6267\u884c\u8ba1\u5212\uff0c\u7528\u6237\u53ef\u4ee5\u4e86\u89e3\u67e5\u8be2\u7684\u6267\u884c\u987a\u5e8f\u3001\u6570\u636e\u5206\u5e03\u60c5\u51b5\u3001\u6570\u636e\u5927\u5c0f\u7b49\u4fe1\u606f\uff0c\u4ece\u800c\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4f7f\u7528\u9002\u5f53\u7684\u5b58\u50a8\u683c\u5f0f<\/li>\n<\/ol>\n\n\n\n<p>\u9009\u62e9\u9002\u5f53\u7684\u5b58\u50a8\u683c\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5904\u7406\u548c\u67e5\u8be2\u6548\u7387\u3002Hive\u652f\u6301\u591a\u79cd\u6570\u636e\u5b58\u50a8\u683c\u5f0f\uff0c\u5982\u6587\u672c\u683c\u5f0f\u3001\u5e8f\u5217\u5316\u683c\u5f0f\u3001\u538b\u7f29\u683c\u5f0f\u7b49\u3002\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5b58\u50a8\u683c\u5f0f\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8\u5360\u7528\u7a7a\u95f4\uff0c\u5e76\u52a0\u5feb\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4f7f\u7528\u9002\u5f53\u7684\u6570\u636e\u5206\u533a\u548c\u6876<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u636e\u5206\u533a\u548c\u6876\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5904\u7406\u548c\u67e5\u8be2\u6548\u7387\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u67e5\u8be2\u9700\u6c42\u548c\u6570\u636e\u91cf\u7684\u5927\u5c0f\u6765\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5206\u533a\u548c\u6876\u3002\u6570\u636e\u5206\u533a\u53ef\u4ee5\u5c06\u6570\u636e\u5206\u6210\u66f4\u5c0f\u7684\u90e8\u5206\uff0c\u4ece\u800c\u51cf\u5c11\u6570\u636e\u626b\u63cf\u548c\u67e5\u8be2\u65f6\u95f4\uff1b\u6876\u53ef\u4ee5\u5c06\u6570\u636e\u5212\u5206\u4e3a\u4e00\u5b9a\u6570\u91cf\u7684\u90e8\u5206\uff0c\u4ece\u800c\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u4f7f\u7528\u9002\u5f53\u7684JOIN\u65b9\u5f0f<\/li>\n<\/ol>\n\n\n\n<p>JOIN\u64cd\u4f5c\u662f\u67e5\u8be2\u4e2d\u6700\u5e38\u89c1\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002\u4f7f\u7528\u9002\u5f53\u7684JOIN\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u4f8b\u5982\uff0c\u4f7f\u7528MAPJOIN\u53ef\u4ee5\u5c06\u5c0f\u6570\u636e\u96c6\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u8fdb\u884cJOIN\u64cd\u4f5c\uff0c\u4ece\u800c\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\uff1b\u4f7f\u7528SORT-MERGE JOIN\u53ef\u4ee5\u5728\u4e24\u4e2a\u5927\u6570\u636e\u96c6\u4e4b\u95f4\u6267\u884cJOIN\u64cd\u4f5c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u907f\u514d\u4f7f\u7528SELECT *<\/li>\n<\/ol>\n\n\n\n<p>\u907f\u514d\u4f7f\u7528SELECT *\u53ef\u4ee5\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u548c\u67e5\u8be2\u65f6\u95f4\u3002\u4f7f\u7528SELECT *\u4f1a\u67e5\u8be2\u6240\u6709\u5217\uff0c\u5373\u4f7f\u6709\u4e9b\u5217\u4e0d\u9700\u8981\u3002\u7528\u6237\u5e94\u8be5\u53ea\u67e5\u8be2\u9700\u8981\u7684\u5217\uff0c\u4ece\u800c\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u548c\u67e5\u8be2\u65f6\u95f4\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>\u4f18\u5316WHERE\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>WHERE\u5b50\u53e5\u53ef\u4ee5\u8fc7\u6ee4\u4e0d\u9700\u8981\u7684\u6570\u636e\uff0c\u4ece\u800c\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002\u7528\u6237\u5e94\u8be5\u5c3d\u53ef\u80fd\u4f7f\u7528WHERE\u5b50\u53e5\u8fc7\u6ee4\u4e0d\u9700\u8981\u7684\u6570\u636e\uff0c\u4ece\u800c\u51cf\u5c11\u6570\u636e\u626b\u63cf\u548c\u67e5\u8be2\u65f6\u95f4\u3002\u7528\u6237\u8fd8\u53ef\u4ee5\u4f7f\u7528IN\u548cBETWEEN\u64cd\u4f5c\u7b26\uff0c\u4ece\u800c\u51cf\u5c11\u67e5\u8be2\u6761\u4ef6\u7684\u6570\u91cf\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"7\">\n<li>\u4f7f\u7528\u5206\u533a\u548c\u672c\u5730\u6a21\u5f0f<\/li>\n<\/ol>\n\n\n\n<p>\u4f7f\u7528\u5206\u533a\u548c\u672c\u5730\u6a21\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u7528\u6237\u53ef\u4ee5\u5c06\u5206\u533a\u6570\u636e\u52a0\u8f7d\u5230\u672c\u5730\u5185\u5b58\u4e2d\uff0c\u4ece\u800c\u51cf\u5c11\u78c1\u76d8\u8bbf\u95ee\u548c\u6570\u636e\u4f20\u8f93\u65f6\u95f4\u3002\u7528\u6237\u8fd8\u53ef\u4ee5\u4f7f\u7528\u672c\u5730\u6a21\u5f0f\uff0c\u5c06\u6570\u636e\u79fb\u52a8\u5230\u67e5\u8be2\u8282\u70b9\u4e0a\u8fdb\u884c\u5904\u7406\uff0c\u4ece\u800c\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u548c\u7f51\u7edc\u5f00\u9500\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cHive\u67e5\u8be2\u4f18\u5316\u662f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u548c\u6027\u80fd\u7684\u5173\u952e\u6b65\u9aa4\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528EXPLAIN\u547d\u4ee4\u67e5\u770b\u67e5\u8be2\u6267\u884c\u8ba1\u5212\uff0c\u9009\u62e9\u9002\u5f53\u7684\u5b58\u50a8\u683c\u5f0f\u3001\u6570\u636e\u5206\u533a\u548c\u6876\u3001JOIN\u65b9\u5f0f\u7b49\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\uff0c\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u4f18\u5316WHERE\u5b50\u53e5\uff0c\u4f7f\u7528\u5206\u533a\u548c\u672c\u5730\u6a21\u5f0f\u7b49\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\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\u91caHive\u6570\u636e\u538b\u7f29\u548c\u5f52\u6863<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u6570\u636e\u538b\u7f29\u548c\u5f52\u6863\u662f\u4f18\u5316\u6570\u636e\u5b58\u50a8\u548c\u63d0\u9ad8\u6570\u636e\u5904\u7406\u6548\u7387\u7684\u91cd\u8981\u6280\u5de7\u3002\u4ee5\u4e0b\u662fHive\u6570\u636e\u538b\u7f29\u548c\u5f52\u6863\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u538b\u7f29<\/li>\n<\/ol>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u6570\u636e\u538b\u7f29\u6280\u672f\u5c06\u6570\u636e\u5b58\u50a8\u5728\u538b\u7f29\u683c\u5f0f\u4e2d\uff0c\u4ece\u800c\u51cf\u5c11\u78c1\u76d8\u5360\u7528\u7a7a\u95f4\u548c\u52a0\u5feb\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6\u3002Hive\u652f\u6301\u591a\u79cd\u6570\u636e\u538b\u7f29\u683c\u5f0f\uff0c\u5982LZO\u3001Snappy\u3001Gzip\u7b49\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u6570\u636e\u7c7b\u578b\u548c\u67e5\u8be2\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u538b\u7f29\u65b9\u5f0f\u3002\u6570\u636e\u538b\u7f29\u7684\u597d\u5904\u5305\u62ec\u51cf\u5c11\u78c1\u76d8\u5360\u7528\u7a7a\u95f4\u3001\u52a0\u5feb\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6\u3001\u964d\u4f4e\u7f51\u7edc\u5f00\u9500\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6570\u636e\u5f52\u6863<\/li>\n<\/ol>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u6570\u636e\u5f52\u6863\u662f\u5c06\u65e7\u6570\u636e\u79fb\u52a8\u5230\u5f52\u6863\u76ee\u5f55\u4e2d\uff0c\u4ece\u800c\u51cf\u5c11\u78c1\u76d8\u5360\u7528\u7a7a\u95f4\u548c\u52a0\u5feb\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6\u3002\u5f52\u6863\u53ef\u4ee5\u901a\u8fc7\u5c06\u65e7\u6570\u636e\u79fb\u52a8\u5230\u72ec\u7acb\u7684\u76ee\u5f55\u4e2d\uff0c\u4ece\u800c\u51cf\u5c11\u5bf9\u6570\u636e\u7684\u626b\u63cf\u548c\u67e5\u8be2\u65f6\u95f4\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u6570\u636e\u7c7b\u578b\u548c\u67e5\u8be2\u9700\u6c42\u9009\u62e9\u9002\u5f53\u7684\u5f52\u6863\u7b56\u7565\u3002\u6570\u636e\u5f52\u6863\u7684\u597d\u5904\u5305\u62ec\u51cf\u5c11\u78c1\u76d8\u5360\u7528\u7a7a\u95f4\u3001\u52a0\u5feb\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6\u3001\u964d\u4f4e\u6570\u636e\u5907\u4efd\u548c\u6062\u590d\u65f6\u95f4\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u538b\u7f29\u548c\u5f52\u6863\u7684\u6700\u4f73\u5b9e\u8df5<\/li>\n<\/ol>\n\n\n\n<p>\u538b\u7f29\u548c\u5f52\u6863\u7684\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9009\u62e9\u5408\u9002\u7684\u538b\u7f29\u683c\u5f0f\u548c\u5f52\u6863\u7b56\u7565<\/li>\n\n\n\n<li>\u538b\u7f29\u548c\u5f52\u6863\u6570\u636e\u4e4b\u524d\u8fdb\u884c\u6570\u636e\u6e05\u6d17\u548c\u8fc7\u6ee4\uff0c\u4ee5\u51cf\u5c11\u6570\u636e\u91cf<\/li>\n\n\n\n<li>\u538b\u7f29\u548c\u5f52\u6863\u6570\u636e\u4e4b\u524d\u8fdb\u884c\u6570\u636e\u5206\u533a\u548c\u6876\u5212\u5206\uff0c\u4ee5\u63d0\u9ad8\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6<\/li>\n\n\n\n<li>\u5728\u6570\u636e\u538b\u7f29\u548c\u5f52\u6863\u8fc7\u7a0b\u4e2d\uff0c\u4fdd\u7559\u5fc5\u8981\u7684\u5143\u6570\u636e\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u53ef\u8bfb\u6027\u548c\u53ef\u64cd\u4f5c\u6027<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728Hive\u4e2d\uff0c\u6570\u636e\u538b\u7f29\u548c\u5f52\u6863\u662f\u4f18\u5316\u6570\u636e\u5b58\u50a8\u548c\u63d0\u9ad8\u6570\u636e\u5904\u7406\u6548\u7387\u7684\u91cd\u8981\u6280\u5de7\u3002\u7528\u6237\u53ef\u4ee5\u9009\u62e9\u9002\u5f53\u7684\u538b\u7f29\u683c\u5f0f\u548c\u5f52\u6863\u7b56\u7565\uff0c\u8fdb\u884c\u6570\u636e\u6e05\u6d17\u548c\u8fc7\u6ee4\uff0c\u8fdb\u884c\u6570\u636e\u5206\u533a\u548c\u6876\u5212\u5206\uff0c\u4fdd\u7559\u5fc5\u8981\u7684\u5143\u6570\u636e\uff0c\u4ece\u800c\u51cf\u5c11\u78c1\u76d8\u5360\u7528\u7a7a\u95f4\u548c\u52a0\u5feb\u6570\u636e\u8bfb\u53d6\u548c\u67e5\u8be2\u901f\u5ea6\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\u91caHive UDF\u548cUDAF<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0cUDF\u548cUDAF\u662f\u81ea\u5b9a\u4e49\u51fd\u6570\u548c\u805a\u5408\u51fd\u6570\u7684\u4e24\u79cd\u5f62\u5f0f\u3002\u4ee5\u4e0b\u662fHive UDF\u548cUDAF\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>UDF<\/li>\n<\/ol>\n\n\n\n<p>UDF\u662f\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u9700\u8981\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u4e8eHive\u67e5\u8be2\u4e2d\u3002Hive\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\uff0c\u5982Java\u3001Python\u7b49\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u7f16\u7a0b\u8bed\u8a00\u7f16\u5199UDF\u3002UDF\u7684\u4f18\u70b9\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u6570\u636e\u5904\u7406\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u9700\u6c42\u81ea\u5b9a\u4e49\u51fd\u6570<\/li>\n\n\n\n<li>\u53ef\u4ee5\u901a\u8fc7Java\u3001Python\u7b49\u7f16\u7a0b\u8bed\u8a00\u5b9e\u73b0UDF\uff0c\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7f16\u7a0b\u80fd\u529b\u548c\u53ef\u6269\u5c55\u6027<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>UDAF<\/li>\n<\/ol>\n\n\n\n<p>UDAF\u662f\u7528\u6237\u81ea\u5b9a\u4e49\u805a\u5408\u51fd\u6570\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u9700\u8981\u81ea\u5b9a\u4e49\u805a\u5408\u51fd\u6570\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u4e8eHive\u67e5\u8be2\u4e2d\u3002Hive\u652f\u6301\u591a\u79cd\u805a\u5408\u51fd\u6570\uff0c\u5982SUM\u3001AVG\u3001MAX\u3001MIN\u3001COUNT\u7b49\uff0c\u4f46\u7528\u6237\u53ef\u4ee5\u4f7f\u7528UDAF\u6765\u5b9e\u73b0\u81ea\u5df1\u7684\u805a\u5408\u51fd\u6570\u3002UDAF\u7684\u4f18\u70b9\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u805a\u5408\u51fd\u6570\u5b9e\u73b0\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u9700\u6c42\u81ea\u5b9a\u4e49\u805a\u5408\u51fd\u6570<\/li>\n\n\n\n<li>\u53ef\u4ee5\u5728Hive\u67e5\u8be2\u4e2d\u4f7f\u7528\uff0c\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u80fd\u529b\u548c\u53ef\u6269\u5c55\u6027<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>UDF\u548cUDAF\u7684\u4f7f\u7528<\/li>\n<\/ol>\n\n\n\n<p>\u4f7f\u7528UDF\u548cUDAF\u9700\u8981\u7528\u6237\u5b9a\u4e49\u51fd\u6570\u7684\u8f93\u5165\u548c\u8f93\u51fa\uff0c\u4ee5\u53ca\u51fd\u6570\u7684\u903b\u8f91\u5904\u7406\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u662f\u4e00\u4e2aJava\u7f16\u5199\u7684UDF\u793a\u4f8b\uff0c\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>import org.apache.hadoop.hive.ql.exec.UDF;\nimport org.apache.hadoop.io.Text;\n\npublic class Upper extends UDF {\n    public Text evaluate(Text str) {\n        if (str == null) {\n            return null;\n        }\n        return new Text(str.toString().toUpperCase());\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u4f7f\u7528UDF\u548cUDAF\u9700\u8981\u7528\u6237\u5728Hive\u4e2d\u6ce8\u518c\u51fd\u6570\uff0c\u4f8b\u5982\uff0c\u4e0b\u9762\u662f\u5728Hive\u4e2d\u6ce8\u518cUDF\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>ADD JAR \/path\/to\/upper.jar;\nCREATE TEMPORARY FUNCTION upper AS 'com.example.Upper';\nSELECT upper(name) FROM employee;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u7528\u6237\u5c06Java\u7f16\u5199\u7684UDF\u6253\u5305\u4e3aupper.jar\u6587\u4ef6\uff0c\u5e76\u5728Hive\u4e2d\u6ce8\u518cUDF\u3002\u7136\u540e\uff0c\u7528\u6237\u53ef\u4ee5\u5728Hive\u67e5\u8be2\u4e2d\u4f7f\u7528upper\u51fd\u6570\u5c06name\u5217\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728Hive\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528UDF\u548cUDAF\u81ea\u5b9a\u4e49\u51fd\u6570\u548c\u805a\u5408\u51fd\u6570\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u4e8eHive\u67e5\u8be2\u4e2d\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528Java\u3001Python\u7b49\u7f16\u7a0b\u8bed\u8a00\u7f16\u5199UDF\u548cUDAF\uff0c\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7f16\u7a0b\u80fd\u529b\u548c\u53ef\u6269\u5c55\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\u91caHive\u89c6\u56fe\u548c\u7d22\u5f15<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u89c6\u56fe\u548c\u7d22\u5f15\u662f\u4f18\u5316\u6570\u636e\u67e5\u8be2\u548c\u7ba1\u7406\u6570\u636e\u7684\u91cd\u8981\u6280\u5de7\u3002\u4ee5\u4e0b\u662fHive\u89c6\u56fe\u548c\u7d22\u5f15\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u89c6\u56fe<\/li>\n<\/ol>\n\n\n\n<p>\u89c6\u56fe\u662f\u903b\u8f91\u4e0a\u7684\u6570\u636e\u8868\uff0c\u5b83\u4e0d\u5305\u542b\u6570\u636e\uff0c\u800c\u662f\u57fa\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u5b9e\u9645\u8868\u7684\u67e5\u8be2\u7ed3\u679c\u3002\u89c6\u56fe\u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u6570\u636e\u8bbf\u95ee\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u5b9a\u4e49\u591a\u4e2a\u89c6\u56fe\u3002\u5728Hive\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528CREATE VIEW\u8bed\u53e5\u521b\u5efa\u89c6\u56fe\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u521b\u5efa\u89c6\u56fe\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>CREATE VIEW view_name AS\nSELECT column1, column2, ...\nFROM table_name\nWHERE condition;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u7528\u6237\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3aview_name\u7684\u89c6\u56fe\uff0c\u8be5\u89c6\u56fe\u57fa\u4e8e\u8868table_name\uff0c\u5e76\u5305\u542b\u6ee1\u8db3condition\u7684\u5217column1\u3001column2\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u7d22\u5f15<\/li>\n<\/ol>\n\n\n\n<p>\u7d22\u5f15\u662f\u7528\u4e8e\u4f18\u5316\u6570\u636e\u67e5\u8be2\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u52a0\u901f\u6570\u636e\u68c0\u7d22\u548c\u67e5\u8be2\u901f\u5ea6\u3002\u5728Hive\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528CREATE INDEX\u8bed\u53e5\u521b\u5efa\u7d22\u5f15\u3002\u7d22\u5f15\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u7b97\u6cd5\u5b9e\u73b0\uff0c\u5982B-Tree\u3001Hash\u7b49\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u521b\u5efa\u7d22\u5f15\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>CREATE INDEX index_name\nON table_name (column1, column2, ...);\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u7528\u6237\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3aindex_name\u7684\u7d22\u5f15\uff0c\u8be5\u7d22\u5f15\u57fa\u4e8e\u8868table_name\uff0c\u5e76\u5305\u542b\u5217column1\u3001column2\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u89c6\u56fe\u548c\u7d22\u5f15\u7684\u4f7f\u7528<\/li>\n<\/ol>\n\n\n\n<p>\u4f7f\u7528\u89c6\u56fe\u548c\u7d22\u5f15\u53ef\u4ee5\u4f18\u5316\u6570\u636e\u67e5\u8be2\u548c\u7ba1\u7406\u6570\u636e\u3002\u7528\u6237\u53ef\u4ee5\u5728\u89c6\u56fe\u4e2d\u5b9a\u4e49\u67e5\u8be2\u8bed\u53e5\uff0c\u4ece\u800c\u63d0\u4f9b\u65b9\u4fbf\u7684\u6570\u636e\u8bbf\u95ee\u65b9\u5f0f\uff1b\u7528\u6237\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u52a0\u901f\u6570\u636e\u68c0\u7d22\u548c\u67e5\u8be2\u901f\u5ea6\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u662f\u4f7f\u7528\u89c6\u56fe\u548c\u7d22\u5f15\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>-- \u521b\u5efa\u89c6\u56fe\nCREATE VIEW view_name AS\nSELECT column1, column2, ...\nFROM table_name\nWHERE condition;\n\n-- \u521b\u5efa\u7d22\u5f15\nCREATE INDEX index_name\nON table_name (column1, column2, ...);\n\n-- \u4f7f\u7528\u89c6\u56fe\u67e5\u8be2\u6570\u636e\nSELECT * FROM view_name;\n\n-- \u4f7f\u7528\u7d22\u5f15\u67e5\u8be2\u6570\u636e\nSELECT column1, column2, ...\nFROM table_name\nWHERE column1 = value;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u7528\u6237\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3aview_name\u7684\u89c6\u56fe\uff0c\u5e76\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3aindex_name\u7684\u7d22\u5f15\u3002\u7136\u540e\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u89c6\u56fe\u67e5\u8be2\u6570\u636e\uff0c\u6216\u4f7f\u7528\u7d22\u5f15\u67e5\u8be2\u7279\u5b9a\u5217\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728Hive\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u89c6\u56fe\u548c\u7d22\u5f15\u4f18\u5316\u6570\u636e\u67e5\u8be2\u548c\u7ba1\u7406\u6570\u636e\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528CREATE VIEW\u8bed\u53e5\u521b\u5efa\u89c6\u56fe\uff0c\u4f7f\u7528CREATE INDEX\u8bed\u53e5\u521b\u5efa\u7d22\u5f15\uff0c\u5e76\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u4f7f\u7528\u89c6\u56fe\u548c\u7d22\u5f15\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\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\u91caHive\u4e8b\u52a1\u548c\u9501\u5b9a<\/p>\n\n\n\n<p>\u5728Hive\u4e2d\uff0c\u4e8b\u52a1\u548c\u9501\u5b9a\u662f\u7ba1\u7406\u5e76\u53d1\u6570\u636e\u8bbf\u95ee\u548c\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u7684\u91cd\u8981\u6280\u5de7\u3002\u4ee5\u4e0b\u662fHive\u4e8b\u52a1\u548c\u9501\u5b9a\u7684\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e8b\u52a1<\/li>\n<\/ol>\n\n\n\n<p>\u4e8b\u52a1\u662f\u4e00\u7ec4\u76f8\u5173\u7684\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u5b83\u4eec\u88ab\u89c6\u4e3a\u4e00\u4e2a\u5355\u72ec\u7684\u64cd\u4f5c\u5355\u5143\uff0c\u5e76\u8981\u4e48\u5168\u90e8\u6267\u884c\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u56de\u6eda\u3002\u5728Hive\u4e2d\uff0c\u4e8b\u52a1\u662f\u901a\u8fc7ACID\uff08\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u79bb\u6027\u548c\u6301\u4e45\u6027\uff09\u7279\u6027\u5b9e\u73b0\u7684\u3002Hive\u652f\u6301ACID\u5c5e\u6027\u7684\u4e8b\u52a1\uff0c\u4f46\u53ea\u9002\u7528\u4e8e\u652f\u6301HDFS\u4e8b\u52a1\uff08HDFS 3.x\u6216\u66f4\u9ad8\u7248\u672c\uff09\u7684\u5b58\u50a8\u683c\u5f0f\uff0c\u5982ORC\u548cParquet\u3002\u4e8b\u52a1\u7684\u597d\u5904\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u4e86\u6570\u636e\u4e00\u81f4\u6027\u548c\u6570\u636e\u5b8c\u6574\u6027\u4fdd\u8bc1<\/li>\n\n\n\n<li>\u63d0\u4f9b\u4e86\u5e76\u53d1\u63a7\u5236\u548c\u6570\u636e\u8bbf\u95ee\u7ba1\u7406\u80fd\u529b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u9501\u5b9a<\/li>\n<\/ol>\n\n\n\n<p>\u9501\u5b9a\u662f\u63a7\u5236\u5e76\u53d1\u8bbf\u95ee\u548c\u7ef4\u62a4\u6570\u636e\u4e00\u81f4\u6027\u7684\u4e00\u79cd\u673a\u5236\u3002\u5728Hive\u4e2d\uff0c\u9501\u5b9a\u662f\u901a\u8fc7\u4e24\u79cd\u65b9\u5f0f\u5b9e\u73b0\u7684\uff1a\u5171\u4eab\u9501\u548c\u6392\u4ed6\u9501\u3002\u5171\u4eab\u9501\uff08SHARED\uff09\u7528\u4e8e\u9632\u6b62\u6570\u636e\u88ab\u5e76\u53d1\u8bfb\u53d6\u6216\u4fee\u6539\uff0c\u800c\u6392\u4ed6\u9501\uff08EXCLUSIVE\uff09\u7528\u4e8e\u9632\u6b62\u6570\u636e\u88ab\u5e76\u53d1\u4fee\u6539\u3002\u7528\u6237\u53ef\u4ee5\u5728Hive\u67e5\u8be2\u4e2d\u4f7f\u7528LOCK TABLE\u8bed\u53e5\u6765\u83b7\u53d6\u9501\u5b9a\u3002\u9501\u5b9a\u7684\u597d\u5904\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u4e86\u5e76\u53d1\u63a7\u5236\u548c\u6570\u636e\u8bbf\u95ee\u7ba1\u7406\u80fd\u529b<\/li>\n\n\n\n<li>\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u548c\u6570\u636e\u5b8c\u6574\u6027<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4e8b\u52a1\u548c\u9501\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5<\/li>\n<\/ol>\n\n\n\n<p>\u4f7f\u7528\u4e8b\u52a1\u548c\u9501\u5b9a\u9700\u8981\u7528\u6237\u4e86\u89e3\u5176\u6700\u4f73\u5b9e\u8df5\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u548c\u6570\u636e\u5b8c\u6574\u6027\u3002\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9009\u62e9\u652f\u6301\u4e8b\u52a1\u548c\u9501\u5b9a\u7684\u5b58\u50a8\u683c\u5f0f\uff0c\u5982ORC\u548cParquet<\/li>\n\n\n\n<li>\u5728\u8fdb\u884c\u4e8b\u52a1\u5904\u7406\u524d\uff0c\u5907\u4efd\u6570\u636e\uff0c\u4ee5\u9632\u6570\u636e\u635f\u574f\u6216\u4e22\u5931<\/li>\n\n\n\n<li>\u5728\u8fdb\u884c\u9501\u5b9a\u65f6\uff0c\u4f7f\u7528\u6700\u5c0f\u7684\u9501\u5b9a\u8303\u56f4\uff0c\u4ee5\u6700\u5927\u7a0b\u5ea6\u5730\u51cf\u5c11\u6570\u636e\u8bbf\u95ee\u963b\u585e<\/li>\n\n\n\n<li>\u5728\u4f7f\u7528\u9501\u5b9a\u65f6\uff0c\u907f\u514d\u957f\u65f6\u95f4\u6301\u6709\u9501\u5b9a\uff0c\u4ee5\u9632\u6b62\u6570\u636e\u8bbf\u95ee\u963b\u585e<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728Hive\u4e2d\uff0c\u4e8b\u52a1\u548c\u9501\u5b9a\u662f\u7ba1\u7406\u5e76\u53d1\u6570\u636e\u8bbf\u95ee\u548c\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u7684\u91cd\u8981\u6280\u5de7\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528ACID\u5c5e\u6027\u7684\u4e8b\u52a1\u548c\u9501\u5b9a\u673a\u5236\uff0c\u9009\u62e9\u652f\u6301\u4e8b\u52a1\u548c\u9501\u5b9a\u7684\u5b58\u50a8\u683c\u5f0f\uff0c\u5907\u4efd\u6570\u636e\uff0c\u6700\u5c0f\u5316\u9501\u5b9a\u8303\u56f4\uff0c\u5e76\u907f\u514d\u957f\u65f6\u95f4\u6301\u6709\u9501\u5b9a\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4e00\u81f4\u6027\u548c\u6570\u636e\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\u7ed9\u51faJava\u8bfb\u5199Hive\u7684\u4ee3\u7801\u793a\u4f8b<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2aJava\u8bfb\u5199Hive\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u4f7f\u7528Java JDBC\u548cApache Hive JDBC\u9a71\u52a8\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u914d\u7f6eHive JDBC\u9a71\u52a8\u7a0b\u5e8f<\/li>\n<\/ol>\n\n\n\n<p>\u9996\u5148\uff0c\u9700\u8981\u4e0b\u8f7d\u5e76\u914d\u7f6eApache Hive JDBC\u9a71\u52a8\u7a0b\u5e8f\u3002\u60a8\u53ef\u4ee5\u4eceHive\u5b98\u65b9\u7f51\u7ad9\uff08<a href=\"https:\/\/hive.apache.org\/downloads.html%EF%BC%89%E4%B8%8B%E8%BD%BD%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F%E3%80%82%E5%B0%86hive-jdbc-x.x.x-standalone.jar%E6%96%87%E4%BB%B6%E6%B7%BB%E5%8A%A0%E5%88%B0%E9%A1%B9%E7%9B%AE%E7%9A%84classpath%E4%B8%AD%E3%80%82\">https:\/\/hive.apache.org\/downloads.html\uff09\u4e0b\u8f7d\u9a71\u52a8\u7a0b\u5e8f\u3002\u5c06hive-jdbc-x.x.x-standalone.jar\u6587\u4ef6\u6dfb\u52a0\u5230\u9879\u76ee\u7684classpath\u4e2d\u3002<\/a><\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668<\/li>\n<\/ol>\n\n\n\n<p>\u5728Java\u4e2d\uff0c\u4f7f\u7528JDBC\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>import java.sql.*;\n\npublic class HiveConnection {\n   private static String driverName = \"org.apache.hive.jdbc.HiveDriver\";\n   private static String url = \"jdbc:hive2:\/\/localhost:10000\/default\";\n   private static String user = \"hive\";\n   private static String password = \"\";\n\n   public static void main(String[] args) throws SQLException {\n      try {\n         Class.forName(driverName);\n      } catch (ClassNotFoundException e) {\n         e.printStackTrace();\n         System.exit(1);\n      }\n      Connection con = DriverManager.getConnection(url, user, password);\n      Statement stmt = con.createStatement();\n      String tableName = \"employee\";\n      String sql = \"select * from \" + tableName;\n      ResultSet res = stmt.executeQuery(sql);\n      while (res.next()) {\n         System.out.println(res.getInt(1) + \"\\t\" + res.getString(2));\n      }\n   }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528JDBC\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u6267\u884cSQL\u67e5\u8be2\u5e76\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u63d2\u5165\u6570\u636e\u5230Hive\u8868<\/li>\n<\/ol>\n\n\n\n<p>\u8981\u5c06\u6570\u636e\u63d2\u5165Hive\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>import java.sql.*;\n\npublic class HiveInsert {\n   private static String driverName = \"org.apache.hive.jdbc.HiveDriver\";\n   private static String url = \"jdbc:hive2:\/\/localhost:10000\/default\";\n   private static String user = \"hive\";\n   private static String password = \"\";\n\n   public static void main(String[] args) throws SQLException {\n      try {\n         Class.forName(driverName);\n      } catch (ClassNotFoundException e) {\n         e.printStackTrace();\n         System.exit(1);\n      }\n      Connection con = DriverManager.getConnection(url, user, password);\n      Statement stmt = con.createStatement();\n      String tableName = \"employee\";\n      String sql = \"insert into \" + tableName + \" values (1, 'Tom'), (2, 'Jerry')\";\n      stmt.executeUpdate(sql);\n      System.out.println(\"Data inserted into \" + tableName + \" table.\");\n   }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528JDBC\u5c06\u6570\u636e\u63d2\u5165Hive\u8868\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u4f7f\u7528Java\u8bfb\u5199Hive\u9700\u8981\u4f7f\u7528JDBC\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u5e76\u6267\u884cSQL\u67e5\u8be2\u548c\u63d2\u5165\u64cd\u4f5c\u3002\u901a\u8fc7\u914d\u7f6eApache Hive JDBC\u9a71\u52a8\u7a0b\u5e8f\u548c\u7f16\u5199Java\u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u4f7f\u7528Java\u8bfb\u5199Hive\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\u7ed9\u51faScala\u8bfb\u5199Hive\u7684\u4ee3\u7801\u793a\u4f8b<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2aScala\u8bfb\u5199Hive\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u4f7f\u7528Scala JDBC\u548cApache Hive JDBC\u9a71\u52a8\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u914d\u7f6eHive JDBC\u9a71\u52a8\u7a0b\u5e8f<\/li>\n<\/ol>\n\n\n\n<p>\u9996\u5148\uff0c\u9700\u8981\u4e0b\u8f7d\u5e76\u914d\u7f6eApache Hive JDBC\u9a71\u52a8\u7a0b\u5e8f\u3002\u60a8\u53ef\u4ee5\u4eceHive\u5b98\u65b9\u7f51\u7ad9\uff08<a href=\"https:\/\/hive.apache.org\/downloads.html%EF%BC%89%E4%B8%8B%E8%BD%BD%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F%E3%80%82%E5%B0%86hive-jdbc-x.x.x-standalone.jar%E6%96%87%E4%BB%B6%E6%B7%BB%E5%8A%A0%E5%88%B0%E9%A1%B9%E7%9B%AE%E7%9A%84classpath%E4%B8%AD%E3%80%82\">https:\/\/hive.apache.org\/downloads.html\uff09\u4e0b\u8f7d\u9a71\u52a8\u7a0b\u5e8f\u3002\u5c06hive-jdbc-x.x.x-standalone.jar\u6587\u4ef6\u6dfb\u52a0\u5230\u9879\u76ee\u7684classpath\u4e2d\u3002<\/a><\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668<\/li>\n<\/ol>\n\n\n\n<p>\u5728Scala\u4e2d\uff0c\u4f7f\u7528JDBC\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>import java.sql.{Connection, DriverManager, ResultSet, SQLException}\n\nobject HiveConnection {\n  val driverName = \"org.apache.hive.jdbc.HiveDriver\"\n  val url = \"jdbc:hive2:\/\/localhost:10000\/default\"\n  val user = \"hive\"\n  val password = \"\"\n\n  def main(args: Array[String]): Unit = {\n    Class.forName(driverName)\n    val con: Connection = DriverManager.getConnection(url, user, password)\n    val stmt = con.createStatement()\n    val tableName = \"employee\"\n    val sql = \"select * from \" + tableName\n    val res: ResultSet = stmt.executeQuery(sql)\n    while (res.next()) {\n      println(res.getInt(1) + \"\\t\" + res.getString(2))\n    }\n  }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528JDBC\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u6267\u884cSQL\u67e5\u8be2\u5e76\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u63d2\u5165\u6570\u636e\u5230Hive\u8868<\/li>\n<\/ol>\n\n\n\n<p>\u8981\u5c06\u6570\u636e\u63d2\u5165Hive\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javaCopy code<code>import java.sql.{Connection, DriverManager, ResultSet, SQLException}\n\nobject HiveInsert {\n  val driverName = \"org.apache.hive.jdbc.HiveDriver\"\n  val url = \"jdbc:hive2:\/\/localhost:10000\/default\"\n  val user = \"hive\"\n  val password = \"\"\n\n  def main(args: Array[String]): Unit = {\n    Class.forName(driverName)\n    val con: Connection = DriverManager.getConnection(url, user, password)\n    val stmt = con.createStatement()\n    val tableName = \"employee\"\n    val sql = \"insert into \" + tableName + \" values (1, 'Tom'), (2, 'Jerry')\"\n    stmt.executeUpdate(sql)\n    println(\"Data inserted into \" + tableName + \" table.\")\n  }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528JDBC\u5c06\u6570\u636e\u63d2\u5165Hive\u8868\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u4f7f\u7528Scala\u8bfb\u5199Hive\u9700\u8981\u4f7f\u7528JDBC\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u5e76\u6267\u884cSQL\u67e5\u8be2\u548c\u63d2\u5165\u64cd\u4f5c\u3002\u901a\u8fc7\u914d\u7f6eApache Hive JDBC\u9a71\u52a8\u7a0b\u5e8f\u548c\u7f16\u5199Scala\u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u4f7f\u7528Scala\u8bfb\u5199Hive\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\u7ed9\u51faPySpark\u8bfb\u5199Hive\u7684\u4ee3\u7801\u793a\u4f8b<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2aPySpark\u8bfb\u5199Hive\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u4f7f\u7528PySpark\u548cPyHive\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b89\u88c5PyHive\u5e93<\/li>\n<\/ol>\n\n\n\n<p>PyHive\u662fPython\u4e2d\u4e0eHive\u7684\u901a\u4fe1\u63a5\u53e3\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5PyHive\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Copy code<code>pip install PyHive\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668<\/li>\n<\/ol>\n\n\n\n<p>\u5728PySpark\u4e2d\uff0c\u4f7f\u7528PyHive\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>from pyhive import hive\nconn = hive.Connection(host=\"localhost\", port=10000, username=\"hive\")\ncursor = conn.cursor()\ntable_name = \"employee\"\ncursor.execute(f\"select * from {table_name}\")\nrows = cursor.fetchall()\nfor row in rows:\n    print(row)\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528PyHive\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u6267\u884cSQL\u67e5\u8be2\u5e76\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u63d2\u5165\u6570\u636e\u5230Hive\u8868<\/li>\n<\/ol>\n\n\n\n<p>\u8981\u5c06\u6570\u636e\u63d2\u5165Hive\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>from pyhive import hive\nconn = hive.Connection(host=\"localhost\", port=10000, username=\"hive\")\ncursor = conn.cursor()\ntable_name = \"employee\"\nvalues = [(1, \"Tom\"), (2, \"Jerry\")]\nsql = f\"insert into {table_name} values %s\" % str(values).replace('[', '').replace(']', '')\ncursor.execute(sql)\nprint(\"Data inserted into \" + table_name + \" table.\")\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528PyHive\u5c06\u6570\u636e\u63d2\u5165Hive\u8868\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u5728PySpark\u4e2d\uff0c\u4f7f\u7528PyHive\u8fde\u63a5\u5230Hive\u670d\u52a1\u5668\uff0c\u5e76\u6267\u884cSQL\u67e5\u8be2\u548c\u63d2\u5165\u64cd\u4f5c\u3002\u901a\u8fc7\u5b89\u88c5PyHive\u5e93\u548c\u7f16\u5199PySpark\u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u4f7f\u7528PySpark\u8bfb\u5199Hive\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\u6709\u54ea\u4e9b\u57fa\u4e8eHive\u7684\u4f18\u79c0\u7cfb\u7edf<\/p>\n\n\n\n<p>\u57fa\u4e8eHive\u7684\u4f18\u79c0\u7cfb\u7edf\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u5176\u4e2d\u51e0\u4e2a\u5e38\u7528\u7684\u7cfb\u7edf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Apache Impala\uff1aImpala\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u9ad8\u6027\u80fd\u5206\u5e03\u5f0fSQL\u67e5\u8be2\u5f15\u64ce\uff0c\u65e8\u5728\u4e3aHadoop\u6570\u636e\u4ed3\u5e93\u63d0\u4f9b\u5feb\u901f\u3001\u4ea4\u4e92\u5f0f\u7684SQL\u67e5\u8be2\u3002\u5b83\u53ef\u4ee5\u4e0eHive\u5143\u6570\u636e\u670d\u52a1\u548cApache Sentry\u96c6\u6210\uff0c\u63d0\u4f9b\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u652f\u6301Kerberos\u548cLDAP\u8ba4\u8bc1\u7b49\u529f\u80fd\u3002<\/li>\n\n\n\n<li>Apache Drill\uff1aDrill\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5206\u5e03\u5f0fSQL\u67e5\u8be2\u5f15\u64ce\uff0c\u652f\u6301\u5728\u591a\u4e2a\u6570\u636e\u6e90\u4e2d\u8fdb\u884c\u67e5\u8be2\uff0c\u5305\u62ecHive\u3001HBase\u3001MongoDB\u548cJSON\u6587\u4ef6\u7b49\u3002Drill\u53ef\u4ee5\u901a\u8fc7REST API\u8fdb\u884c\u8bbf\u95ee\uff0c\u5e76\u652f\u6301\u4f7f\u7528\u6807\u51c6SQL\u67e5\u8be2\u6240\u6709\u6570\u636e\u6e90\u3002<\/li>\n\n\n\n<li>Apache Kylin\uff1aKylin\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5206\u5e03\u5f0f\u5206\u6790\u5f15\u64ce\uff0c\u65e8\u5728\u4e3aOLAP\u63d0\u4f9b\u9ad8\u6548\u7684\u591a\u7ef4\u5206\u6790\u80fd\u529b\u3002\u5b83\u652f\u6301\u4f7f\u7528Hive\u4f5c\u4e3a\u5b58\u50a8\u540e\u7aef\uff0c\u53ef\u4ee5\u5c06\u5927\u89c4\u6a21\u7684Hive\u8868\u8f6c\u6362\u4e3aKylin Cube\uff0c\u4ece\u800c\u52a0\u901f\u591a\u7ef4\u67e5\u8be2\u3002Kylin\u8fd8\u652f\u6301\u4f7f\u7528Spark\u4f5c\u4e3a\u8ba1\u7b97\u5f15\u64ce\u3002<\/li>\n\n\n\n<li>Apache Nifi\uff1aNifi\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u6570\u636e\u6d41\u5904\u7406\u7cfb\u7edf\uff0c\u53ef\u7528\u4e8e\u5b9e\u73b0\u6570\u636e\u7684\u63d0\u53d6\u3001\u8f6c\u6362\u548c\u52a0\u8f7d\uff08ETL\uff09\u64cd\u4f5c\u3002Nifi\u652f\u6301\u4f7f\u7528Hive\u4f5c\u4e3a\u76ee\u6807\u5b58\u50a8\uff0c\u5e76\u652f\u6301\u4f7f\u7528HiveQL\u67e5\u8be2\u548c\u8fc7\u6ee4\u6570\u636e\u6d41\u3002<\/li>\n\n\n\n<li>Apache Superset\uff1aSuperset\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u6570\u636e\u53ef\u89c6\u5316\u548c\u63a2\u7d22\u5e73\u53f0\uff0c\u53ef\u7528\u4e8e\u521b\u5efa\u4ea4\u4e92\u5f0f\u7684\u6570\u636e\u4eea\u8868\u677f\u548c\u62a5\u8868\u3002Superset\u652f\u6301\u4f7f\u7528Hive\u4f5c\u4e3a\u6570\u636e\u6e90\uff0c\u5e76\u63d0\u4f9b\u4e86\u591a\u79cd\u53ef\u89c6\u5316\u9009\u9879\uff0c\u5305\u62ec\u8868\u683c\u3001\u56fe\u8868\u548c\u5730\u56fe\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0c\u57fa\u4e8eHive\u7684\u4f18\u79c0\u7cfb\u7edf\u5305\u62ecImpala\u3001Drill\u3001Kylin\u3001Nifi\u548cSuperset\u7b49\u3002\u8fd9\u4e9b\u7cfb\u7edf\u63d0\u4f9b\u4e86\u591a\u79cd\u4e0d\u540c\u7684\u529f\u80fd\uff0c\u5305\u62ec\u9ad8\u6027\u80fdSQL\u67e5\u8be2\u3001\u591a\u7ef4\u5206\u6790\u3001\u6570\u636e\u6d41\u5904\u7406\u3001\u6570\u636e\u53ef\u89c6\u5316\u548c\u63a2\u7d22\u7b49\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u7cfb\u7edf\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u548c\u5206\u6790Hadoop\u6570\u636e\u4ed3\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>\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\u4eceELK\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\uff0c\u4ee5\u4e0b\u662fELK\u6559\u7a0b\u4e2d\u9700\u8981\u8bb2\u89e3\u7684\u5185\u5bb9\u4e00\u89c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4ec0\u4e48\u662fELK<\/li>\n\n\n\n<li>ELK\u7684\u67b6\u6784\u548c\u7ec4\u4ef6<\/li>\n\n\n\n<li>ELK\u7684\u5b89\u88c5\u548c\u914d\u7f6e<\/li>\n\n\n\n<li>Logstash\u7684\u4f7f\u7528\u548c\u914d\u7f6e<\/li>\n\n\n\n<li>Elasticsearch\u7684\u4f7f\u7528\u548c\u914d\u7f6e<\/li>\n\n\n\n<li>Kibana\u7684\u4f7f\u7528\u548c\u914d\u7f6e<\/li>\n\n\n\n<li>ELK\u7684\u65e5\u5fd7\u6536\u96c6\u548c\u5206\u6790<\/li>\n\n\n\n<li>ELK\u7684\u6570\u636e\u53ef\u89c6\u5316<\/li>\n\n\n\n<li>ELK\u7684\u9ad8\u7ea7\u7528\u6cd5\uff1a\u96c6\u7fa4\u548c\u76d1\u63a7<\/li>\n\n\n\n<li>ELK\u7684\u4f18\u5316\u548c\u6027\u80fd\u8c03\u4f18<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0a\u662fELK\u6559\u7a0b\u9700\u8981\u8bb2\u89e3\u7684\u4e3b\u8981\u5185\u5bb9\uff0c\u5176\u4e2d\u5305\u62ec\u4e86ELK\u7684\u57fa\u7840\u77e5\u8bc6\u3001\u7ec4\u4ef6\u7684\u4ecb\u7ecd\u3001\u5b89\u88c5\u548c\u914d\u7f6e\u65b9\u6cd5\u3001\u65e5\u5fd7\u6536\u96c6\u548c\u5206\u6790\u3001\u6570\u636e\u53ef\u89c6\u5316\u3001\u9ad8\u7ea7\u7528\u6cd5\u3001\u4f18\u5316\u548c\u6027\u80fd\u8c03\u4f18\u7b49\u5185\u5bb9\u3002\u5728\u89c6\u9891\u6559\u7a0b\u4e2d\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u8fd9\u4e9b\u4e3b\u9898\u9010\u4e00\u4ecb\u7ecdELK\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u548c\u64cd\u4f5c\u6f14\u793a\uff0c\u4ee5\u5e2e\u52a9\u5b66\u4e60\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u638c\u63e1ELK\u7684\u4f7f\u7528\u548c\u5e94\u7528\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\u4ec0\u4e48\u662fELK<\/p>\n\n\n\n<p>ELK\u662f\u6307Elasticsearch\u3001Logstash\u548cKibana\u4e09\u4e2a\u5f00\u6e90\u5de5\u5177\u7684\u7ec4\u5408\uff0c\u5e38\u7528\u4e8e\u5b9e\u65f6\u65e5\u5fd7\u6570\u636e\u7684\u6536\u96c6\u3001\u5b58\u50a8\u3001\u641c\u7d22\u3001\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Elasticsearch\uff1a\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5206\u5e03\u5f0f\u641c\u7d22\u548c\u5206\u6790\u5f15\u64ce\uff0c\u7528\u4e8e\u5b58\u50a8\u3001\u641c\u7d22\u548c\u5206\u6790\u6570\u636e\u3002\u5b83\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5168\u6587\u641c\u7d22\u548c\u590d\u6742\u805a\u5408\u529f\u80fd\uff0c\u5e76\u652f\u6301\u5b9e\u65f6\u6570\u636e\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002<\/li>\n\n\n\n<li>Logstash\uff1a\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u6570\u636e\u6536\u96c6\u5f15\u64ce\uff0c\u7528\u4e8e\u5c06\u4e0d\u540c\u683c\u5f0f\u7684\u6570\u636e\u6536\u96c6\u3001\u8f6c\u6362\u548c\u4f20\u8f93\u5230Elasticsearch\u4e2d\u3002\u5b83\u652f\u6301\u591a\u79cd\u6570\u636e\u6e90\u548c\u683c\u5f0f\uff0c\u5305\u62ec\u6587\u672c\u3001\u65e5\u5fd7\u3001JSON\u3001CSV\u548c\u6570\u636e\u5e93\u7b49\u3002<\/li>\n\n\n\n<li>Kibana\uff1a\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u6570\u636e\u53ef\u89c6\u5316\u5e73\u53f0\uff0c\u7528\u4e8e\u5c06\u5b58\u50a8\u5728Elasticsearch\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u53ef\u89c6\u5316\u3002\u5b83\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u67e5\u8be2\u548c\u8fc7\u6ee4\u529f\u80fd\uff0c\u4ee5\u53ca\u591a\u79cd\u53ef\u89c6\u5316\u9009\u9879\uff0c\u5305\u62ec\u56fe\u8868\u3001\u8868\u683c\u548c\u5730\u56fe\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<p>ELK\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5728\u5927\u89c4\u6a21\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u9ad8\u6548\u5730\u8fdb\u884c\u65e5\u5fd7\u6536\u96c6\u3001\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002\u5b83\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ef\u6269\u5c55\u6027\uff1aELK\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u66f4\u591a\u7684\u8282\u70b9\u6765\u8fdb\u884c\u6c34\u5e73\u6269\u5c55\uff0c\u5e76\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c\u914d\u7f6e\u3002<\/li>\n\n\n\n<li>\u5b9e\u65f6\u6027\uff1aELK\u80fd\u591f\u5904\u7406\u5b9e\u65f6\u6570\u636e\uff0c\u5e76\u53ef\u4ee5\u901a\u8fc7Kibana\u5b9e\u65f6\u5c55\u793a\u5206\u6790\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>\u7075\u6d3b\u6027\uff1aELK\u652f\u6301\u591a\u79cd\u6570\u636e\u6e90\u548c\u683c\u5f0f\uff0c\u53ef\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u6570\u636e\u6536\u96c6\u548c\u5206\u6790\u9700\u6c42\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0cELK\u662f\u4e00\u7ec4\u5f00\u6e90\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u5b9e\u65f6\u65e5\u5fd7\u6570\u636e\u7684\u6536\u96c6\u3001\u5b58\u50a8\u3001\u641c\u7d22\u3001\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002\u5b83\u662f\u5927\u89c4\u6a21\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u9ad8\u6548\u8fdb\u884c\u65e5\u5fd7\u6536\u96c6\u3001\u5206\u6790\u548c\u53ef\u89c6\u5316\u7684\u5e38\u7528\u5de5\u5177\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\u91caELK\u7684\u67b6\u6784\u548c\u7ec4\u4ef6<\/p>\n\n\n\n<p>ELK\u7684\u67b6\u6784\u7531\u4e09\u4e2a\u6838\u5fc3\u7ec4\u4ef6\u7ec4\u6210\uff0c\u5206\u522b\u662fElasticsearch\u3001Logstash\u548cKibana\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/YpM5Jcq.png\" alt=\"ELK\u67b6\u6784\"\/><\/figure>\n\n\n\n<ul 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