{"id":10616,"date":"2026-02-15T10:00:01","date_gmt":"2026-02-15T02:00:01","guid":{"rendered":"http:\/\/www.jointchina.com\/index.php\/uncategorized\/10616\/"},"modified":"2026-02-15T10:00:01","modified_gmt":"2026-02-15T02:00:01","slug":"sql%e6%8a%a5%e9%94%99%e9%a2%91%e5%8f%91%ef%bc%9f2025%e5%b9%b4%e6%95%b0%e6%8d%ae%e5%ba%93%e4%bf%ae%e5%a4%8d%e5%ae%9e%e6%88%98%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"http:\/\/www.jointchina.com\/index.php\/new\/10616\/","title":{"rendered":"SQL\u62a5\u9519\u9891\u53d1\uff1f2025\u5e74\u6570\u636e\u5e93\u4fee\u590d\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"<p>\u5357\u4eac\u6570\u636e\u6062\u590d<\/p>\n<p>\u6df1\u591c\u8b66\u62a5\u54cd\u8d77\uff0c\u5de5\u7a0b\u5e08\u5c0f\u738b\u76ef\u7740\u5c4f\u5e55\u4e0a\u7684\u201cORA-00942: \u8868\u6216\u89c6\u56fe\u4e0d\u5b58\u5728\u201d\u51b7\u6c57\u76f4\u6d41\u3002\u8fd9\u4e0d\u662f\u4e2a\u4f8b\u2014\u20142025\u5e74\u7b2c\u4e00\u5b63\u5ea6\uff0c\u5168\u7403\u56e0SQL\u9519\u8bef\u5bfc\u81f4\u7684\u4e1a\u52a1\u4e2d\u65ad\u4e8b\u4ef6\u540c\u6bd4\u6fc0\u589e37%\u3002\u968f\u7740\u6df7\u5408\u4e91\u67b6\u6784\u666e\u53ca\u548c\u5b9e\u65f6\u6570\u636e\u6d41\u7206\u70b8\u6027\u589e\u957f\uff0c\u4e00\u6761\u95ee\u9898SQL\u7684\u7834\u574f\u529b\u8fdc\u8d85\u60f3\u8c61\u3002\u5f53\u4f60\u5728\u641c\u7d22\u5f15\u64ce\u8f93\u5165\u201c\u600e\u4e48\u4fee\u590dSQL\u201d\u65f6\uff0c\u771f\u6b63\u9700\u8981\u7684\u4e0d\u4ec5\u662f\u8bed\u6cd5\u7ea0\u9519\uff0c\u800c\u662f\u4ece\u707e\u96be\u9884\u9632\u5230\u7cbe\u51c6\u6392\u96f7\u7684\u5168\u5957\u751f\u5b58\u6cd5\u5219\u3002<\/p>\n<p><\/p>\n<p><strong>\u81f4\u547d\u9677\u9631\uff1a2025\u5e74\u9ad8\u9891SQL\u707e\u96be\u73b0\u573a\u5b9e\u5f55<\/strong><\/p>\n<p>\u67d0\u8de8\u5883\u7535\u5546\u57282025\u5e74\u4fc3\u9500\u5b63\u906d\u9047\u201c\u9b3c\u8ba2\u5355\u201d\u5371\u673a\u3002\u51cc\u6668\u4e0a\u7ebf\u7684\u4f18\u60e0\u6d3b\u52a8\u4ee3\u7801\u4e2d\uff0c\u4e00\u53e5\u672a\u7ecf\u9a8c\u8bc1\u7684<code>UPDATE inventory SET stock = stock - $qty<\/code>\u5f15\u53d1\u8fde\u73af\u96ea\u5d29\u3002\u7531\u4e8e\u7f3a\u5c11\u4e8b\u52a1\u9694\u79bb\u4e0e\u5e93\u5b58\u9501\uff0c\u8d85\u5356\u6bd4\u4f8b\u9ad8\u8fbe210%\uff0c\u76f4\u63a5\u635f\u5931\u8d85\u5343\u4e07\u3002\u66f4\u9690\u853d\u7684\u662f\u65b0\u578b\u201c\u6162\u67e5\u8be2\u523a\u6740\u201d\uff1a\u67d0\u91d1\u878d\u5e73\u53f0\u57282025\u5e743\u6708\u56e0\u7d22\u5f15\u5931\u6548\uff0c\u5bfc\u81f4\u8d44\u91d1\u5bf9\u8d26SQL\u4ece0.2\u79d2\u9aa4\u589e\u81f347\u5206\u949f\uff0c\u5f15\u53d1\u76d1\u7ba1\u9884\u8b66\u3002<\/p>\n<p>\u4e91\u670d\u52a1\u5546\u66b4\u9732\u7684\u6f0f\u6d1e\u66f4\u89e6\u76ee\u60ca\u5fc3\u30022025\u5e742\u6708\uff0c\u67d0\u5927\u5382\u4e91\u6570\u636e\u5e93\u88ab\u66dd\u6743\u9650\u914d\u7f6e\u7f3a\u9677\uff0c\u653b\u51fb\u8005\u901a\u8fc7\u6076\u610f\u6784\u9020\u7684<code>UNION SELECT<\/code>\u6ce8\u5165\u8bed\u53e5\uff0c\u7ed5\u8fc7WAF\u7a83\u53d6\u767e\u4e07\u7ea7\u7528\u6237\u9690\u79c1\u3002\u8fd9\u4e9b\u8840\u6dcb\u6dcb\u7684\u6848\u4f8b\u63ed\u793a\uff1a\u4fee\u590dSQL\u5df2\u4ece\u5355\u7eaf\u7684\u8bed\u6cd5\u4fee\u6b63\uff0c\u5347\u7ea7\u4e3a\u67b6\u6784\u5b89\u5168\u3001\u6027\u80fd\u4f18\u5316\u3001\u707e\u5907\u4f53\u7cfb\u7684\u7efc\u5408\u6218\u5f79\u3002<\/p>\n<p><\/p>\n<p><strong>\u7d27\u6025\u6b62\u8840\uff1a\u4e94\u6b65\u4fee\u590dSQL\u7684\u9ec4\u91d1\u64cd\u4f5c\u6d41<\/strong><\/p>\n<p>\u5f53\u751f\u4ea7\u73af\u5883SQL\u70b8\u88c2\u65f6\uff0c\u8d44\u6df1DBA\u7684\u4fee\u590d\u6d41\u7a0b\u5982\u540c\u62c6\u5f39\u4e13\u5bb6\u3002\u7b2c\u4e00\u6b65\u6c38\u8fdc\u662f\u201c\u51bb\u7ed3\u73b0\u573a\u201d\uff1a\u901a\u8fc7<code>SHOW PROCESSLIST<\/code>\u6216<code>pg_stat_activity<\/code>\u5b9a\u4f4d\u95ee\u9898\u4f1a\u8bdd\uff0c\u7528<code>KILL [ID]<\/code>\u53ca\u65f6\u6b62\u635f\u30022025\u5e74\u4e3b\u6d41\u6570\u636e\u5e93\u5df2\u652f\u6301\u201c\u67e5\u8be2\u6025\u6551\u5305\u201d\uff0c\u5982MySQL 9.0\u7684<code>EXPLAIN ANALYZE FORMAT=JSON<\/code>\u53ef\u751f\u62103D\u6267\u884c\u8def\u5f84\u56fe\uff0c\u76f4\u89c2\u66b4\u9732\u5168\u8868\u626b\u63cf\u6b7b\u7a74\u3002<\/p>\n<p>\u7b2c\u4e8c\u6b65\u8fdb\u5165\u6df1\u5ea6\u4fee\u590d\u73af\u8282\u3002\u9762\u5bf9\u9501\u51b2\u7a81\uff0c\u91c7\u7528<code>SELECT ... FOR UPDATE NOWAIT<\/code>\u907f\u514d\u7ebf\u7a0b\u963b\u585e\uff1b\u9488\u5bf9N+1\u67e5\u8be2\u987d\u75be\uff0c2025\u5e74\u65b0\u7248ORM\u6846\u67b6\u5df2\u652f\u6301\u201c\u9884\u52a0\u8f7d\u63a2\u6d4b\u5668\u201d\uff0c\u81ea\u52a8\u5c06\u5206\u6563\u67e5\u8be2\u5408\u5e76\u4e3a\u6279\u91cf\u64cd\u4f5c\u3002\u6700\u5173\u952e\u7684\u7b2c\u4e09\u6b65\u662f\u9a8c\u8bc1\u4fee\u590d\uff1a\u901a\u8fc7\u5f00\u6e90\u5de5\u5177SQLReplay\u5bf9\u4fee\u590d\u524d\u540e\u7684\u8bed\u53e5\u8fdb\u884c\u6d41\u91cf\u56de\u653e\uff0c\u786e\u4fddTPS\u6ce2\u52a8\u5c0f\u4e8e5%\u4e14\u7ed3\u679c\u96c60\u5dee\u5f02\u3002<\/p>\n<p><\/p>\n<p><strong>\u6839\u6cbb\u4e4b\u9053\uff1a2025\u5e74\u6570\u636e\u5e93\u97e7\u6027\u67b6\u6784\u8bbe\u8ba1<\/strong><\/p>\n<p>\u771f\u6b63\u9ad8\u660e\u7684\u4fee\u590d\u53d1\u751f\u5728\u95ee\u9898\u51fa\u73b0\u524d\u30022025\u5e74\u9886\u5148\u4f01\u4e1a\u5df2\u666e\u53ca\u201cSQL\u5b89\u5168\u5de6\u79fb\u201d\u7b56\u7565\uff1a\u5728CI\/CD\u7ba1\u9053\u5d4c\u5165SQL\u8d28\u91cf\u95e8\u7981\u3002TiDB\u7684AST\u89e3\u6790\u5668\u80fd\u81ea\u52a8\u62e6\u622a<code>DELETE FROM table<\/code>\u8fd9\u7c7b\u88f8\u5220\u9664\u64cd\u4f5c\uff0c\u800c\u963f\u91cc\u4e91DAS\u7684\u667a\u80fd\u7d22\u5f15\u63a8\u8350\u5f15\u64ce\uff0c\u53ef\u5728\u5f00\u53d1\u9636\u6bb5\u5c31\u751f\u6210\u6700\u4f18\u7d22\u5f15\u65b9\u6848\u3002<\/p>\n<p>\u707e\u5907\u4f53\u7cfb\u66f4\u662f\u751f\u547d\u7ebf\u30022025\u5e74\u70ed\u95e8\u7684\u201c\u4e09\u526f\u672c\u5b9e\u65f6\u4fee\u590d\u201d\u67b6\u6784\uff0c\u5f53\u4e3b\u526f\u672c\u68c0\u6d4b\u5230SQL\u6267\u884c\u5f02\u5e38\u65f6\uff0c\u5907\u526f\u672c\u4f1a\u572850ms\u5185\u63a5\u7ba1\u5e76\u542f\u52a8\u81ea\u52a8\u4fee\u590d\u3002\u67d0\u94f6\u884c\u91c7\u7528PostgreSQL\u7684pg_repack\u63d2\u4ef6\uff0c\u5b9e\u73b0\u4e1a\u52a1\u65e0\u611f\u77e5\u7684\u788e\u7247\u91cd\u6574\uff0c\u8ba9\u6bcf\u6708\u9700\u8981\u7d27\u6025\u4fee\u590d\u7684\u6162SQL\u4e0b\u964d91%\u3002\u66f4\u503c\u5f97\u5173\u6ce8\u7684\u662fAI\u9a71\u52a8\u7684\u9884\u6d4b\u6027\u4fee\u590d\uff1a\u57fa\u4e8e\u5386\u53f2SQL\u6267\u884c\u6307\u7eb9\u7684\u8bad\u7ec3\u6a21\u578b\uff0c\u53ef\u63d0\u524d48\u5c0f\u65f6\u9884\u8b66\u6f5c\u5728\u95ee\u9898\u70b9\u3002<\/p>\n<p><\/p>\n<p><strong>\u95ee\u98981\uff1aSQL\u4fee\u590d\u540e\u5982\u4f55\u9a8c\u8bc1\u6570\u636e\u4e00\u81f4\u6027\uff1f<\/strong><br \/>\n\u7b54\uff1a2025\u5e74\u4e3b\u6d41\u65b9\u6848\u662f\u91c7\u7528\u201c\u91cf\u5b50\u9a8c\u8bc1\u201d\u6280\u672f\u3002\u901a\u8fc7\u5bf9\u6bd4\u6e90\u5e93\u4e0e\u4fee\u590d\u5e93\u7684\u54c8\u5e0c\u6307\u7eb9\uff08\u5982MySQL\u7684CHECKSUM TABLE\uff09\uff0c\u7ed3\u5408\u903b\u8f91\u5bfc\u51fa\u5de5\u5177\uff08mysqldump &#8211;skip-extended-insert\uff09\u9010\u884c\u6bd4\u5bf9\u3002\u65b0\u578b\u5de5\u5177\u5982Bytebase\u652f\u6301\u81ea\u52a8\u5316\u4fee\u590d\u5de5\u5355\uff0c\u5728SQL\u6267\u884c\u524d\u540e\u81ea\u52a8\u751f\u6210\u6570\u636e\u5feb\u7167\u5bf9\u6bd4\u62a5\u544a\u3002<\/p>\n<p><\/p>\n<p><strong>\u95ee\u98982\uff1a\u4e91\u73af\u5883\u4e0bSQL\u4fee\u590d\u6709\u4f55\u7279\u6b8a\u98ce\u9669\uff1f<\/strong><br \/>\n\u7b54\uff1a\u6700\u5927\u98ce\u9669\u662f\u914d\u7f6e\u6f02\u79fb\u30022025\u5e74\u591a\u8d77\u4e8b\u6545\u6e90\u4e8e\u4fee\u590d\u540e\u672a\u540c\u6b65\u4e91\u5e73\u53f0\u53c2\u6570\uff08\u5982RDS\u7684parallel_workers\uff09\u3002\u5efa\u8bae\u91c7\u7528IaC\u5de5\u5177\uff08Terraform+Ansible\uff09\u56fa\u5316\u914d\u7f6e\uff0c\u5e76\u4f7f\u7528CloudHealth\u7b49\u5e73\u53f0\u76d1\u63a7\u914d\u7f6e\u53d8\u66f4\u3002\u9700\u8b66\u60d5\u8de8\u53ef\u7528\u533a\u5ef6\u8fdf\uff0c\u4fee\u590d\u64cd\u4f5c\u5e94\u4f18\u5148\u5728\u540cAZ\u6267\u884c\u3002<\/p>\n<p>\u897f\u6570\u79d1\u6280\u6570\u636e\u6062\u590d  \u7f51\u7ad9\uff1ahttp:\/\/www.jointchina.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5357\u4eac\u6570\u636e\u6062\u590d<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-10616","post","type-post","status-publish","format-standard","hentry","category-new"],"_links":{"self":[{"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/posts\/10616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/comments?post=10616"}],"version-history":[{"count":0,"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/posts\/10616\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/media?parent=10616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/categories?post=10616"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jointchina.com\/index.php\/wp-json\/wp\/v2\/tags?post=10616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}