{"id":138445,"date":"2024-10-31T14:32:46","date_gmt":"2024-10-31T06:32:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/138445\/"},"modified":"2024-10-31T14:32:47","modified_gmt":"2024-10-31T06:32:47","slug":"sql-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%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/138445\/","title":{"rendered":"SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"

SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\u6709\u54ea\u4e9b\uff1f<\/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\u548c\u61c9\u7528\u7a0b\u5e8f\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\u53ef\u80fd\u6703\u9047\u5230\u67e5\u8a62\u901f\u5ea6\u8b8a\u6162\u7684\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0eSQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u5e7e\u500b\u4e3b\u8981\u539f\u56e0\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n

1. \u4e0d\u826f\u7684\u67e5\u8a62\u8a2d\u8a08<\/h2>\n

\u67e5\u8a62\u7684\u8a2d\u8a08\u5c0d\u6027\u80fd\u6709\u8457\u76f4\u63a5\u7684\u5f71\u97ff\u3002\u8907\u96dc\u7684\u67e5\u8a62\u3001\u904e\u591a\u7684\u806f\u63a5\uff08JOIN\uff09\u6216\u4e0d\u5fc5\u8981\u7684\u5b50\u67e5\u8a62\u90fd\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u901f\u5ea6\u8b8a\u6162\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';\n<\/code><\/pre>\n
\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u512a\u5316\u67e5\u8a62\u7d50\u69cb\uff0c\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u806f\u63a5\uff0c\u6216\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u90fd\u80fd\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
2. \u7f3a\u4e4f\u7d22\u5f15<\/h2>\n
\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u95dc\u9375\u3002\u7576\u8868\u4e2d\u6c92\u6709\u9069\u7576\u7684\u7d22\u5f15\u6642\uff0cSQL Server\u9700\u8981\u9032\u884c\u5168\u8868\u6383\u63cf\uff0c\u9019\u6703\u5c0e\u81f4\u67e5\u8a62\u901f\u5ea6\u8b8a\u6162\u3002\u70ba\u4e86\u6539\u5584\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u70ba\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u5275\u5efa\u7d22\u5f15\u3002\u4f8b\u5982\uff1a<\/p>\n
CREATE INDEX idx_status ON TableA(status);\n<\/code><\/pre>\n
\u9019\u6a23\u53ef\u4ee5\u52a0\u901f\u5c0d\u65bc\u72c0\u614b\u70ba’active’\u7684\u67e5\u8a62\u3002<\/p>\n
3. \u9396\u5b9a\u548c\u963b\u585e<\/h2>\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\u7528SQL Server\u7684\u52d5\u614b\u7ba1\u7406\u8996\u5716\uff08DMV\uff09\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u9396\u5b9a\u554f\u984c\u3002\u4f8b\u5982\uff1a<\/p>\n
SELECT * FROM sys.dm_exec_requests WHERE blocking_session_id  0;\n<\/code><\/pre>\n
\u901a\u904e\u5206\u6790\u9019\u4e9b\u6578\u64da\uff0c\u53ef\u4ee5\u627e\u51fa\u9020\u6210\u963b\u585e\u7684\u67e5\u8a62\u4e26\u9032\u884c\u512a\u5316\u3002<\/p>\n
4. \u786c\u9ad4\u8cc7\u6e90\u4e0d\u8db3<\/h2>\n
SQL Server\u7684\u6027\u80fd\u4e5f\u53d7\u5230\u786c\u9ad4\u8cc7\u6e90\u7684\u5f71\u97ff\u3002\u5982\u679c\u4f3a\u670d\u5668\u7684CPU\u3001\u5167\u5b58\u6216\u78c1\u789fI\/O\u6027\u80fd\u4e0d\u8db3\uff0c\u5c07\u6703\u5f71\u97ff\u67e5\u8a62\u7684\u57f7\u884c\u901f\u5ea6\u3002\u5b9a\u671f\u76e3\u63a7\u4f3a\u670d\u5668\u7684\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u5347\u7d1a\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n
5. \u4e0d\u7576\u7684\u914d\u7f6e<\/h2>\n
SQL Server\u7684\u914d\u7f6e\u5c0d\u6027\u80fd\u6709\u8457\u91cd\u8981\u5f71\u97ff\u3002\u932f\u8aa4\u7684\u5167\u5b58\u914d\u7f6e\u3001\u4e26\u884c\u8655\u7406\u8a2d\u7f6e\u6216\u5176\u4ed6\u53c3\u6578\u90fd\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u78ba\u4fddSQL Server\u7684\u914d\u7f6e\u7b26\u5408\u6700\u4f73\u5be6\u8e10\uff0c\u4e26\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/p>\n
6. \u6578\u64da\u5eab\u788e\u7247\u5316<\/h2>\n
\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\u548c\u522a\u9664\uff0c\u6578\u64da\u5eab\u53ef\u80fd\u6703\u51fa\u73fe\u788e\u7247\u5316\u73fe\u8c61\uff0c\u9019\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002\u5b9a\u671f\u9032\u884c\u7d22\u5f15\u91cd\u5efa\u6216\u91cd\u7d44\u53ef\u4ee5\u6e1b\u5c11\u788e\u7247\u5316\uff0c\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u4f8b\u5982\uff1a<\/p>\n
ALTER INDEX ALL ON TableA REBUILD;\n<\/code><\/pre>\n
\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u6539\u5584\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\u53ef\u80fd\u6d89\u53ca\u591a\u65b9\u9762\uff0c\u5305\u62ec\u4e0d\u826f\u7684\u67e5\u8a62\u8a2d\u8a08\u3001\u7f3a\u4e4f\u7d22\u5f15\u3001\u9396\u5b9a\u548c\u963b\u585e\u3001\u786c\u9ad4\u8cc7\u6e90\u4e0d\u8db3\u3001\u4e0d\u7576\u7684\u914d\u7f6e\u4ee5\u53ca\u6578\u64da\u5eab\u788e\u7247\u5316\u7b49\u3002\u901a\u904e\u91dd\u5c0d\u9019\u4e9b\u554f\u984c\u9032\u884c\u5206\u6790\u548c\u512a\u5316\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u6216\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\uff0c\u78ba\u4fdd\u696d\u52d9\u904b\u884c\u7684\u9ad8\u6548\u8207\u7a69\u5b9a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3SQL Server\u67e5\u8a62\u901f\u5ea6\u6162\u7684\u539f\u56e0\uff0c\u5305\u62ec\u7d22\u5f15\u7f3a\u5931\u3001\u67e5\u8a62\u512a\u5316\u3001\u8cc7\u6e90\u7af6\u722d\u53ca\u6578\u64da\u5eab\u8a2d\u8a08\u4e0d\u7576\u7b49\u56e0\u7d20\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-138445","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138445","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=138445"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138445\/revisions"}],"predecessor-version":[{"id":138446,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138445\/revisions\/138446"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=138445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=138445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=138445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}