{"id":195881,"date":"2024-11-13T18:41:20","date_gmt":"2024-11-13T10:41:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195881\/"},"modified":"2024-11-13T18:41:21","modified_gmt":"2024-11-13T10:41:21","slug":"%e9%80%a0%e6%88%90sql-server%e6%9f%a5%e8%a9%a2%e9%80%9f%e5%ba%a6%e6%85%a2%e7%9a%84%e5%8e%9f%e5%9b%a0%e8%88%87%e5%84%aa%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195881\/","title":{"rendered":"\u9020\u6210SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\u8207\u512a\u5316"},"content":{"rendered":"

\u9020\u6210SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\u8207\u512a\u5316<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cSQL Server\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u696d\u52d9\u74b0\u5883\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\u548c\u67e5\u8a62\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u8a31\u591a\u7528\u6236\u6703\u767c\u73fe\u5176\u67e5\u8a62\u901f\u5ea6\u8b8a\u5f97\u7de9\u6162\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9020\u6210SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u512a\u5316\u5efa\u8b70\u3002<\/p>\n

\u9020\u6210\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0<\/h2>\n

1. \u4e0d\u826f\u7684\u67e5\u8a62\u8a2d\u8a08<\/h3>\n

\u67e5\u8a62\u7684\u8a2d\u8a08\u5c0d\u6027\u80fd\u6709\u8457\u76f4\u63a5\u5f71\u97ff\u3002\u8907\u96dc\u7684\u67e5\u8a62\u3001\u904e\u591a\u7684\u806f\u63a5\uff08JOIN\uff09\u64cd\u4f5c\u4ee5\u53ca\u4e0d\u5fc5\u8981\u7684\u5b50\u67e5\u8a62\u90fd\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8a62\u53ef\u80fd\u6703\u56e0\u70ba\u4e0d\u5fc5\u8981\u7684\u806f\u63a5\u800c\u8b8a\u5f97\u7de9\u6162\uff1a<\/p>\n

SELECT a.*, b.*\nFROM TableA a\nJOIN TableB b ON a.id = b.a_id\nWHERE a.status = 'active';<\/code><\/pre>\n
\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u7c21\u5316\u67e5\u8a62\u6216\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
2. \u7f3a\u4e4f\u7d22\u5f15<\/h3>\n
\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u95dc\u9375\u3002\u7f3a\u4e4f\u9069\u7576\u7684\u7d22\u5f15\u6703\u5c0e\u81f4SQL Server\u5728\u67e5\u8a62\u6642\u9032\u884c\u5168\u8868\u6383\u63cf\uff0c\u9019\u6703\u6d88\u8017\u5927\u91cf\u7684\u6642\u9593\u548c\u8cc7\u6e90\u3002\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u53ef\u4ee5\u6aa2\u67e5\u8868\u7684\u7d22\u5f15\u60c5\u6cc1\uff1a<\/p>\n
SELECT * \nFROM sys.indexes \nWHERE object_id = OBJECT_ID('TableA');<\/code><\/pre>\n
\u6839\u64da\u67e5\u8a62\u7d50\u679c\uff0c\u9069\u7576\u5730\u6dfb\u52a0\u6216\u8abf\u6574\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u6539\u5584\u67e5\u8a62\u901f\u5ea6\u3002<\/p>\n
3. \u9396\u5b9a\u548c\u963b\u585e<\/h3>\n
\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\uff0c\u9396\u5b9a\u548c\u963b\u585e\u662f\u5e38\u898b\u7684\u6027\u80fd\u74f6\u9838\u3002\u7576\u4e00\u500b\u67e5\u8a62\u6b63\u5728\u57f7\u884c\u6642\uff0c\u5176\u4ed6\u67e5\u8a62\u53ef\u80fd\u6703\u88ab\u963b\u585e\uff0c\u5c0e\u81f4\u6574\u9ad4\u6027\u80fd\u4e0b\u964d\u3002\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u53ef\u4ee5\u6aa2\u67e5\u7576\u524d\u7684\u9396\u5b9a\u60c5\u6cc1\uff1a<\/p>\n
SELECT * \nFROM sys.dm_tran_locks;<\/code><\/pre>\n
\u901a\u904e\u512a\u5316\u67e5\u8a62\u548c\u6e1b\u5c11\u9396\u5b9a\u6642\u9593\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u963b\u585e\u7684\u60c5\u6cc1\u3002<\/p>\n
4. \u786c\u9ad4\u8cc7\u6e90\u4e0d\u8db3<\/h3>\n
\u786c\u9ad4\u8cc7\u6e90\u7684\u4e0d\u8db3\uff0c\u5982CPU\u3001\u5167\u5b58\u548c\u78c1\u789fI\/O\uff0c\u6703\u76f4\u63a5\u5f71\u97ffSQL Server\u7684\u6027\u80fd\u3002\u5982\u679c\u4f3a\u670d\u5668\u7684\u8cc7\u6e90\u4e0d\u8db3\uff0c\u5247\u5373\u4f7f\u67e5\u8a62\u672c\u8eab\u8a2d\u8a08\u826f\u597d\uff0c\u4e5f\u53ef\u80fd\u7121\u6cd5\u9054\u5230\u7406\u60f3\u7684\u6027\u80fd\u3002\u5b9a\u671f\u76e3\u63a7\u4f3a\u670d\u5668\u7684\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1\u662f\u5fc5\u8981\u7684\u3002<\/p>\n
\u512a\u5316\u5efa\u8b70<\/h2>\n
1. \u67e5\u8a62\u91cd\u69cb<\/h3>\n
\u5c0d\u65bc\u6027\u80fd\u8f03\u5dee\u7684\u67e5\u8a62\uff0c\u8003\u616e\u91cd\u69cb\u67e5\u8a62\u4ee5\u6e1b\u5c11\u8907\u96dc\u6027\u3002\u4f8b\u5982\uff0c\u5c07\u591a\u500b\u806f\u63a5\u5408\u4f75\u70ba\u4e00\u500b\u67e5\u8a62\uff0c\u6216\u4f7f\u7528CTE\uff08\u516c\u7528\u8868\u8868\u9054\u5f0f\uff09\u4f86\u7c21\u5316\u67e5\u8a62\u908f\u8f2f\u3002<\/p>\n
2. \u6dfb\u52a0\u7d22\u5f15<\/h3>\n
\u6839\u64da\u67e5\u8a62\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u5b9a\u671f\u8a55\u4f30\u4e26\u6dfb\u52a0\u5fc5\u8981\u7684\u7d22\u5f15\u3002\u53ef\u4ee5\u4f7f\u7528SQL Server\u7684\u67e5\u8a62\u5206\u6790\u5de5\u5177\u4f86\u8b58\u5225\u9700\u8981\u7d22\u5f15\u7684\u5217\u3002<\/p>\n
3. \u4f7f\u7528\u67e5\u8a62\u8a08\u5283<\/h3>\n
\u5206\u6790\u67e5\u8a62\u8a08\u5283\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u6027\u80fd\u74f6\u9838\u3002\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u53ef\u4ee5\u67e5\u770b\u67e5\u8a62\u8a08\u5283\uff1a<\/p>\n
SET SHOWPLAN_XML ON;\nGO\n-- Your query here\nGO\nSET SHOWPLAN_XML OFF;<\/code><\/pre>\n
\u6839\u64da\u67e5\u8a62\u8a08\u5283\u7684\u7d50\u679c\uff0c\u8abf\u6574\u67e5\u8a62\u6216\u7d22\u5f15\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
4. \u786c\u9ad4\u5347\u7d1a<\/h3>\n
\u5982\u679c\u7d93\u904e\u512a\u5316\u5f8c\u4ecd\u7136\u7121\u6cd5\u6eff\u8db3\u6027\u80fd\u9700\u6c42\uff0c\u8003\u616e\u5347\u7d1a\u4f3a\u670d\u5668\u786c\u9ad4\uff0c\u589e\u52a0CPU\u3001\u5167\u5b58\u6216\u4f7f\u7528\u66f4\u5feb\u7684\u78c1\u789f\u7cfb\u7d71\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\u591a\u7a2e\u591a\u6a23\uff0c\u5305\u62ec\u4e0d\u826f\u7684\u67e5\u8a62\u8a2d\u8a08\u3001\u7f3a\u4e4f\u7d22\u5f15\u3001\u9396\u5b9a\u548c\u963b\u585e\u4ee5\u53ca\u786c\u9ad4\u8cc7\u6e90\u4e0d\u8db3\u3002\u901a\u904e\u91cd\u69cb\u67e5\u8a62\u3001\u6dfb\u52a0\u7d22\u5f15\u3001\u5206\u6790\u67e5\u8a62\u8a08\u5283\u548c\u5347\u7d1a\u786c\u9ad4\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u6216 \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u904b\u884c\u7684\u7a69\u5b9a\u6027\u548c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u8a0eSQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\u53ca\u512a\u5316\u7b56\u7565\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u7a69\u5b9a\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-195881","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195881","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=195881"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195881\/revisions"}],"predecessor-version":[{"id":195882,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195881\/revisions\/195882"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}