{"id":774,"date":"2020-08-03T10:32:18","date_gmt":"2020-08-03T02:32:18","guid":{"rendered":"http:\/\/www.gbase8.cn\/?p=774"},"modified":"2020-11-10T09:07:08","modified_gmt":"2020-11-10T01:07:08","slug":"gbase-8a%e6%95%b0%e6%8d%ae%e5%ba%93%e9%9b%86%e7%be%a4%e4%b8%9a%e5%8a%a1sql%e6%89%a7%e8%a1%8c%e6%85%a2%e7%9a%84%e5%8f%af%e8%83%bd%e5%8e%9f%e5%9b%a0","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/774","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u4e1a\u52a1SQL\u6267\u884c\u6162\u7684\u53ef\u80fd\u539f\u56e0"},"content":{"rendered":"\n<p>GBase 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ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#2%E3%80%81%E5%86%85%E5%AD%98%E4%B8%8D%E8%B6%B3\" >2\u3001\u5185\u5b58\u4e0d\u8db3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#3%E3%80%81%E7%BD%91%E7%BB%9C%E9%97%AE%E9%A2%98\" >3\u3001\u7f51\u7edc\u95ee\u9898<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#4%E3%80%81CPU%E9%97%AE%E9%A2%98\" >4\u3001CPU\u95ee\u9898<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#%E4%BA%8C%E3%80%81%E4%B8%9A%E5%8A%A1%E9%97%AE%E9%A2%98\" >\u4e8c\u3001\u4e1a\u52a1\u95ee\u9898<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#1%E3%80%81%E6%B6%89%E5%8F%8A%E7%9A%84%E8%A1%A8%E6%95%B0%E6%8D%AE%E9%87%8F\" >1\u3001\u6d89\u53ca\u7684\u8868\u6570\u636e\u91cf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#2%E3%80%81%E4%B8%9A%E5%8A%A1%E8%A1%A8%E5%9C%A8join%E7%AD%89%E6%93%8D%E4%BD%9C%E7%94%9F%E6%88%90%E7%9A%84%E4%B8%AD%E9%97%B4%E7%BB%93%E6%9E%9C%EF%BC%8C%E6%95%B0%E6%8D%AE%E9%87%8F%E5%A4%A7\" >2\u3001\u4e1a\u52a1\u8868\u5728join\u7b49\u64cd\u4f5c\u751f\u6210\u7684\u4e2d\u95f4\u7ed3\u679c\uff0c\u6570\u636e\u91cf\u5927<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#3%E3%80%81%E5%9C%A8%E7%AD%89%E5%BE%85%E9%94%81%E3%80%82\" >3\u3001\u5728\u7b49\u5f85\u9501\u3002<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#4%E3%80%81%E4%B8%9A%E5%8A%A1%E7%B9%81%E5%BF%99%EF%BC%8C%E5%8D%A0%E7%94%A8%E8%B5%84%E6%BA%90%E9%AB%98\" >4\u3001\u4e1a\u52a1\u7e41\u5fd9\uff0c\u5360\u7528\u8d44\u6e90\u9ad8<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#%E4%B8%89%E3%80%81%E4%BC%98%E5%8C%96%E9%97%AE%E9%A2%98\" >\u4e09\u3001\u4f18\u5316\u95ee\u9898<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#1%E3%80%81%E6%95%B0%E6%8D%AE%E5%80%BE%E6%96%9C\" >1\u3001\u6570\u636e\u503e\u659c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#2%E3%80%81%E6%B2%A1%E6%9C%89%E5%B9%B6%E8%A1%8C\" >2\u3001\u6ca1\u6709\u5e76\u884c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#3%E3%80%81%E7%AE%97%E6%B3%95%E9%80%89%E6%8B%A9%E4%B8%8D%E5%AF%B9\" >3\u3001\u7b97\u6cd5\u9009\u62e9\u4e0d\u5bf9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#4%E3%80%81%E7%AC%9B%E5%8D%A1%E5%B0%94%E7%A7%AF\" >4\u3001\u7b1b\u5361\u5c14\u79ef<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#5%E3%80%81%E5%86%85%E9%83%A8%E9%80%BB%E8%BE%91%E7%AD%89%E5%BE%85\" >5\u3001\u5185\u90e8\u903b\u8f91\u7b49\u5f85<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#6%E3%80%81%E7%BD%91%E7%BB%9C%E6%95%85%E9%9A%9C\" >6\u3001\u7f51\u7edc\u6545\u969c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#%E5%9B%9B%E3%80%81BUG\" >\u56db\u3001BUG<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#1%E3%80%81%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E5%8D%A1%E6%AD%BB\" >1\u3001\u64cd\u4f5c\u7cfb\u7edf\u5361\u6b7b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.gbase8.cn\/en\/774\/#2%E3%80%81%E6%95%B0%E6%8D%AE%E5%BA%93BUG\" >2\u3001\u6570\u636e\u5e93BUG<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%B8%80%E3%80%81%E5%85%88%E6%8E%92%E9%99%A4%E7%A1%AC%E4%BB%B6%E5%92%8C%E7%8E%AF%E5%A2%83%E5%8E%9F%E5%9B%A0\"><\/span>\u4e00\u3001\u5148\u6392\u9664\u786c\u4ef6\u548c\u73af\u5883\u539f\u56e0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1%E3%80%81%E7%A3%81%E7%9B%98%E6%80%A7%E8%83%BD%E5%B7%AE\"><\/span>1\u3001\u78c1\u76d8\u6027\u80fd\u5dee<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%A3%81%E7%9B%98%E6%8D%9F%E5%9D%8F\"><\/span>\u78c1\u76d8\u635f\u574f<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\u9996\u5148\u786e\u8ba4\u64cd\u4f5c\u7cfb\u7edf\u65e5\u5fd7\u662f\u5426\u5df2\u7ecf\u62a5\u9519\uff0c\u67e5\u770b\/var\/log\/messages\u6216\u8005\u5f52\u6863\u65e5\u5fd7\uff0c\u67e5\u770b\u662f\u5426\u6709\u78c1\u76d8\u76f8\u5173\u7684\u62a5\u9519\uff0c\u5305\u62ec\u6247\u533a\u7c7b sector\uff0c\u6587\u4ef6\u7cfb\u7edf\u7c7b ext4 \u3001xfs\u3001ext3\u62a5\u9519\u7b49\u3002\u57fa\u672c\u90fd\u5305\u542b sda, sdb\u7b49\uff0c \u6216\u8005 err\u5b57\u6837\u3002<\/p>\n\n\n\n<p>\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>kernel: &#91;29652410.762413] end_request: critical target error, dev sdb, sector 9771301434\nkernel: &#91;29652404.273769] sd 0:0:0:1: &#91;sdb]  Add. Sense: Unrecovered read error<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>load kernel: EXT4-fs warning (device sdb4):ext4_dx_add_entry:Directory index full\uff01<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%A3%81%E7%9B%98%E6%80%A7%E8%83%BD%E9%97%AE%E9%A2%98\"><\/span>\u78c1\u76d8\u6027\u80fd\u95ee\u9898<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\u53ef\u4ee5\u901a\u8fc7fio \u505a\u78c1\u76d8\u968f\u673a\u8bfb\u5199\u6027\u80fd\u6d4b\u8bd5\u3002\u5982\u679c\u6267\u884c\u671f\u95f4\u90e8\u5206\u8282\u70b9\u8fd9\u6837\uff0c\u90a3\u5c31\u53ef\u80fd\u662f\u90e8\u5206\u673a\u5668\u6027\u80fd\u4e0d\u5747\u8861\u5bfc\u81f4\u3002\u5177\u4f53\u53c2\u6570\u548c\u53c2\u8003\u7ed3\u679c\uff0c\u8bf7\u53c2\u8003<\/p>\n\n\n\n<p><a class=\"\" href=\"http:\/\/www.gbase8.cn\/?p=483\">fio\u78c1\u76d8\u6027\u80fd\u6d4b\u8bd5\u53c2\u6570<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2%E3%80%81%E5%86%85%E5%AD%98%E4%B8%8D%E8%B6%B3\"><\/span>2\u3001\u5185\u5b58\u4e0d\u8db3<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u51fa\u73b0\u4e86SWAP. \u8fd9\u4e2a\u53ef\u4ee5\u901a\u8fc7\u5728\u6bcf\u4e2a\u8282\u70b9\u6267\u884c free \u68c0\u67e5\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3%E3%80%81%E7%BD%91%E7%BB%9C%E9%97%AE%E9%A2%98\"><\/span>3\u3001\u7f51\u7edc\u95ee\u9898<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u73b0\u573a\u51fa\u73b0\u8fc7\u7f51\u5361\u6545\u969c\uff0c\u5bfc\u81f4\u964d\u901f\u6210\u767e\u5146\u7684\u60c5\u51b5\uff0c\u6216\u8005\u4e22\u5305\u4e25\u91cd\u3002\u5df2\u7ecf\u51fa\u73b0\u8fc7\u51e0\u6b21\u67d0\u53f0\u670d\u52a1\u5668\u7f51\u5361\u964d\u901f\uff0c\u5bfc\u81f4\u6574\u4f53\u6027\u80fd\u4e0b\u964d\u3002\u91cd\u542f\u7f51\u5361\u540e\u89e3\u51b3\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4%E3%80%81CPU%E9%97%AE%E9%A2%98\"><\/span>4\u3001CPU\u95ee\u9898<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u51fa\u73b0\u8fc7CPU\u964d\u9891\uff0c\u751a\u81f3\u9891\u7387\u4e0d\u5b9a\u7684\u60c5\u51b5\u3002 \u964d\u9891\u53ef\u4ee5\u901a\u8fc7\u53bb\u6389\u8282\u80fd\u6a21\u5f0f\uff0c\u542f\u7528\u957f\u671f\u6027\u80fd\u6a21\u5f0f\u89e3\u51b3\uff0c\u9891\u7387\u6545\u969c\u90a3\u4e2a\u662f\u66f4\u6362\u4e86CPU\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%BA%8C%E3%80%81%E4%B8%9A%E5%8A%A1%E9%97%AE%E9%A2%98\"><\/span>\u4e8c\u3001\u4e1a\u52a1\u95ee\u9898<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1%E3%80%81%E6%B6%89%E5%8F%8A%E7%9A%84%E8%A1%A8%E6%95%B0%E6%8D%AE%E9%87%8F\"><\/span>1\u3001\u6d89\u53ca\u7684\u8868\u6570\u636e\u91cf<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u8868\u6570\u636e\u91cf\u5f88\u5927\uff0c\u8017\u65f6\u80af\u5b9a\u589e\u52a0\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2%E3%80%81%E4%B8%9A%E5%8A%A1%E8%A1%A8%E5%9C%A8join%E7%AD%89%E6%93%8D%E4%BD%9C%E7%94%9F%E6%88%90%E7%9A%84%E4%B8%AD%E9%97%B4%E7%BB%93%E6%9E%9C%EF%BC%8C%E6%95%B0%E6%8D%AE%E9%87%8F%E5%A4%A7\"><\/span>2\u3001\u4e1a\u52a1\u8868\u5728join\u7b49\u64cd\u4f5c\u751f\u6210\u7684\u4e2d\u95f4\u7ed3\u679c\uff0c\u6570\u636e\u91cf\u5927<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u6bd4\u5982\u5927\u8868\u5173\u8054\uff0c\u6216\u8005\u591a\u7ea7\u5173\u8054\u3002\u73b0\u573a\u51fa\u73b0\u8fc7\u51e0\u4e07\u7684\u8868\uff0c\u5728\u8fdb\u884c\u591a\u4e2a\u8868\u7684join\u540e\uff0c\u7ed3\u679c\u96c6\u8fbe\u52301\u4e07\u4ebf\u884c\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3%E3%80%81%E5%9C%A8%E7%AD%89%E5%BE%85%E9%94%81%E3%80%82\"><\/span>3\u3001\u5728\u7b49\u5f85\u9501\u3002<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u6709\u5176\u4ed6\u4e1a\u52a1\u62ff\u5230\u4e86\u9501\uff0c\u9700\u8981\u7b49\u5f85\u3002\u53ef\u4ee5\u901a\u8fc7 gcadmin showlock \u67e5\u770b\u9501\u5360\u7528\u60c5\u51b5\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/www.gbase8.cn\/24\">GBase8a MPP Cluster\u67e5\u770b\u96c6\u7fa4\u9501 showlock<\/a><\/p>\n\n\n\n<p>\u4e5f\u53ef\u4ee5\u901a\u8fc7show detail processlist \u67e5\u770b\u5f53\u524dSQL\u7684\u9501\u60c5\u51b5\u3002<\/p>\n\n\n\n<p><a class=\"\" href=\"http:\/\/www.gbase8.cn\/65\">GBase8a \u663e\u793a\u96c6\u7fa4\u6b63\u5728\u8dd1\u7684SQL\u8fdb\u7a0bshow [full | detail] processlist<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4%E3%80%81%E4%B8%9A%E5%8A%A1%E7%B9%81%E5%BF%99%EF%BC%8C%E5%8D%A0%E7%94%A8%E8%B5%84%E6%BA%90%E9%AB%98\"><\/span>4\u3001\u4e1a\u52a1\u7e41\u5fd9\uff0c\u5360\u7528\u8d44\u6e90\u9ad8<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u901a\u8fc7 show processlist \u67e5\u770b\u5f53\u524d\u6b63\u5728\u8dd1\u7684SQL\uff0c\u662f\u4e0d\u662f\u5f88\u591a\u3002<\/p>\n\n\n\n<p><a class=\"\" href=\"http:\/\/www.gbase8.cn\/65\">GBase8a \u663e\u793a\u96c6\u7fa4\u6b63\u5728\u8dd1\u7684SQL\u8fdb\u7a0bshow [full | detail] processlist<\/a><\/p>\n\n\n\n<p>\u901a\u8fc7nmon\u3001iostat\u7b49\u67e5\u770b\u78c1\u76d8\u4f7f\u7528\u7e41\u5fd9\u7a0b\u5ea6\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/www.gbase8.cn\/1257\">Linux \u67e5\u770b\u8fdb\u7a0b\u5360\u7528\u78c1\u76d8\u8bfb\u5199\u60c5\u51b5 iostat iotop pidstat<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%B8%89%E3%80%81%E4%BC%98%E5%8C%96%E9%97%AE%E9%A2%98\"><\/span>\u4e09\u3001\u4f18\u5316\u95ee\u9898<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1%E3%80%81%E6%95%B0%E6%8D%AE%E5%80%BE%E6%96%9C\"><\/span>1\u3001\u6570\u636e\u503e\u659c<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u4e3b\u8981\u662f\u5206\u5e03\u5217\u6216\u8005group\u7684\u7b2c\u4e00\u4e2a\u5217\u91cd\u590d\u503c\u975e\u5e38\u9ad8\uff0c\u5bfc\u81f4\u6570\u636e\u5728\u67d01\u4e2a\u6216\u51e0\u4e2a\u4e0a\u51fa\u73b0\u503e\u659c\uff0c\u5bfc\u81f4\u867d\u7136\u8282\u70b9\u5f88\u591a\uff0c\u4f46\u6027\u80fd\u4f9d\u7136\u5f88\u6162\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2%E3%80%81%E6%B2%A1%E6%9C%89%E5%B9%B6%E8%A1%8C\"><\/span>2\u3001\u6ca1\u6709\u5e76\u884c<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u5305\u62ec\u7cfb\u7edf\u5e76\u53d1\u592a\u9ad8\uff0c\u5bfc\u81f4\u540e\u9762\u7684SQL\u6ca1\u6709\u66f4\u591a\u7684\u7ebf\u7a0b\u53ef\u7528\uff0c\u5bfc\u81f4\u5185\u90e8\u4e32\u884c\u6267\u884c\u3002\u5177\u4f53\u53c2\u8003\u6570\u636e\u5e93\u53c2\u6570\u914d\u7f6e gbase_parallel_degree\u53c2\u6570\u3002 <\/p>\n\n\n\n<p><a class=\"\" href=\"http:\/\/www.gbase8.cn\/?p=776\">GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4SQL\u5e76\u884c\u8bfb\u53c2\u6570<\/a><\/p>\n\n\n\n<p>\u4e5f\u53ef\u80fd\u662f\u67d0\u4e9b\u7b97\u5b50\u6216\u51fd\u6570\uff0c\u6570\u636e\u5e93\u5185\u90e8\u5f53\u524d\u7248\u672c\u6ca1\u6709\u5b9e\u73b0\u5e76\u884c\uff0c\u8fd9\u4e2a\u9700\u8981\u54a8\u8be2\u5382\u5546\u5224\u65ad\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3%E3%80%81%E7%AE%97%E6%B3%95%E9%80%89%E6%8B%A9%E4%B8%8D%E5%AF%B9\"><\/span>3\u3001\u7b97\u6cd5\u9009\u62e9\u4e0d\u5bf9<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u6570\u636e\u5e93\u5185\u90e8\u8bc4\u4f30\u91c7\u6837\u9009\u62e9\u7b97\u6cd5\u65f6\u51fa\u73b0\u5931\u8bef\uff0c\u6bd4\u5982group\u65f6\u3002\u6b64\u65f6\u53ef\u4ee5\u4eba\u5de5\u8bbe\u7f6e\u53c2\u6570(\u901a\u8fc7hint)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4%E3%80%81%E7%AC%9B%E5%8D%A1%E5%B0%94%E7%A7%AF\"><\/span>4\u3001\u7b1b\u5361\u5c14\u79ef<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u8fd9\u4e2a\u7c7b\u4f3c\u4e1a\u52a1\u95ee\u9898\uff0c\u533a\u522b\u662f\u8fd9\u4e2a\u662fSQL\u4e66\u5199\u95ee\u9898\uff0c\u662f\u53ef\u4ee5\u4f18\u5316\u7684\u3002\u90a3\u4e2a\u662f\u4e1a\u52a1\u672c\u8eab\u5c31\u662f\u7ed3\u679c\u96c6\u5927\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/www.gbase8.cn\/?p=372\">GBase 8a\u96c6\u7fa4\u9650\u5236\u7ed3\u679c\u96c6\u884c\u6570\uff0c\u907f\u514d\u7684\u7b1b\u5361\u5c14\u5360\u7528\u5927\u91cf\u78c1\u76d8<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5%E3%80%81%E5%86%85%E9%83%A8%E9%80%BB%E8%BE%91%E7%AD%89%E5%BE%85\"><\/span>5\u3001\u5185\u90e8\u903b\u8f91\u7b49\u5f85<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u6bd4\u5982\u5728\u7b49\u5176\u5b83\u8fdb\u7a0b\u91ca\u653e\u9501\uff0c\u7279\u522b\u662fDML \u548c  DQL\u4e4b\u95f4\u3002 \u65b0\u7248\u672c\u96c6\u7fa4\u5df2\u7ecf\u652f\u6301DQL\u4e0d\u518d\u5361\u4f4fDML\u7684\u8ffd\u52a0(insert load)\u6a21\u5f0f\uff0c\u4f46\u4f9d\u7136\u4f1a\u963b\u585eupdate\u7b49\u3002<br>\u6216\u8005\u4f60\u5728delete\u6216\u8005drop\u8868\uff0c\u4f46\u6709\u4e2a\u8be5\u8868\u7684\u957f\u67e5\u8be2\u5728\u8dd1\uff0c\u4e5f\u9700\u8981\u7b49\u5f85\u5176\u6267\u884c\u5b8c\u6bd5\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6%E3%80%81%E7%BD%91%E7%BB%9C%E6%95%85%E9%9A%9C\"><\/span>6\u3001\u7f51\u7edc\u6545\u969c<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u8282\u70b9\u7f51\u7edc\u6545\u969c\uff0c\u4f1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u51fa\u73b0\u957f\u65f6\u95f4\u7b49\u5f85\uff0c\u800c\u9ed8\u8ba4\u6570\u636e\u5e93\u8bfb\u5199\u8d85\u65f6\u53c2\u6570\u662f100\u4e07\u79d2\u3002 \u8fd9\u4e2a\u9700\u8981\u4e1a\u52a1\u6839\u636e\u5b9e\u9645\u60c5\u51b5\uff0c\u8bbe\u7f6e\u5408\u9002\u7684\u8d85\u65f6\u53c2\u6570\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%9B%9B%E3%80%81BUG\"><\/span>\u56db\u3001BUG<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1%E3%80%81%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E5%8D%A1%E6%AD%BB\"><\/span>1\u3001\u64cd\u4f5c\u7cfb\u7edf\u5361\u6b7b<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u6bd4\u5982\u7cfb\u7edf\u5df2\u7ecf\u65e0\u6cd5ssh, 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