{"id":141397,"date":"2024-10-31T21:42:19","date_gmt":"2024-10-31T13:42:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/141397\/"},"modified":"2024-10-31T21:42:20","modified_gmt":"2024-10-31T13:42:20","slug":"sql-server-%e4%b8%ad%e6%b8%85%e7%90%86%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e6%8f%90%e5%8d%87%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%8b%e8%a1%8c%e6%95%88%e7%8e%87%ef%bc%88sqlserver-%e6%b8%85%e5%b1%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/141397\/","title":{"rendered":"SQL Server \u4e2d\u6e05\u7406\u6578\u64da\u5eab\uff1a\u63d0\u5347\u6578\u64da\u5eab\u904b\u884c\u6548\u7387\uff08sqlserver \u6e05\u5c4f\uff09"},"content":{"rendered":"

SQL Server \u4e2d\u6e05\u7406\u6578\u64da\u5eab\uff1a\u63d0\u5347\u6578\u64da\u5eab\u904b\u884c\u6548\u7387<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002SQL Server \u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u65b9\u6cd5\u4f86\u6e05\u7406\u6578\u64da\u5eab\uff0c\u4ee5\u63d0\u5347\u5176\u904b\u884c\u6548\u7387\u3002\u672c\u6587\u5c07\u63a2\u8a0e SQL Server \u4e2d\u7684\u6578\u64da\u5eab\u6e05\u7406\u6280\u8853\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7406\u6578\u64da\u5eab\uff1f<\/h2>\n

\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u6578\u64da\u5eab\u4e2d\u6703\u7a4d\u7d2f\u5927\u91cf\u7684\u7121\u7528\u6578\u64da\uff0c\u4f8b\u5982\u904e\u671f\u7684\u8a18\u9304\u3001\u91cd\u8907\u7684\u6578\u64da\u548c\u81e8\u6642\u6578\u64da\u3002\u9019\u4e9b\u6578\u64da\u4e0d\u50c5\u4f54\u7528\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u53ef\u80fd\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\uff0c\u5c0e\u81f4\u6578\u64da\u5eab\u904b\u884c\u7de9\u6162\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6e05\u7406\u6578\u64da\u5eab\u662f\u4fdd\u6301\u5176\u9ad8\u6548\u904b\u884c\u7684\u5fc5\u8981\u6b65\u9a5f\u3002<\/p>\n

\u6e05\u7406\u6578\u64da\u5eab\u7684\u5e38\u898b\u65b9\u6cd5<\/h2>\n

1. \u522a\u9664\u904e\u671f\u6578\u64da<\/h3>\n

\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u6703\u751f\u6210\u81e8\u6642\u6578\u64da\u6216\u904e\u671f\u6578\u64da\uff0c\u9019\u4e9b\u6578\u64da\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u4e0d\u518d\u9700\u8981\u3002\u53ef\u4ee5\u4f7f\u7528 SQL \u67e5\u8a62\u4f86\u522a\u9664\u9019\u4e9b\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba Orders<\/code> \u7684\u8868\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u500b OrderDate<\/code> \u5217\uff0c\u6211\u5011\u53ef\u4ee5\u522a\u9664 30 \u5929\u524d\u7684\u8a02\u55ae\uff1a<\/p>\n

DELETE FROM Orders WHERE OrderDate < DATEADD(DAY, -30, GETDATE());<\/code><\/pre>\n
2. \u6e05\u7406\u91cd\u8907\u6578\u64da<\/h3>\n
\u91cd\u8907\u6578\u64da\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6027\uff0c\u4e26\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528 ROW_NUMBER()<\/code> \u51fd\u6578\u4f86\u8b58\u5225\u91cd\u8907\u7684\u8a18\u9304\uff0c\u7136\u5f8c\u522a\u9664\u591a\u9918\u7684\u884c\u3002\u4f8b\u5982\uff1a<\/p>\n
WITH CTE AS (\n    SELECT *,\n           ROW_NUMBER() OVER (PARTITION BY Email ORDER BY ID) AS RowNum\n    FROM Users\n)\nDELETE FROM CTE WHERE RowNum > 1;<\/code><\/pre>\n
3. \u512a\u5316\u7d22\u5f15<\/h3>\n
\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u91cd\u8981\u5de5\u5177\uff0c\u4f46\u96a8\u8457\u6578\u64da\u7684\u8b8a\u5316\uff0c\u7d22\u5f15\u53ef\u80fd\u6703\u8b8a\u5f97\u4e0d\u518d\u9ad8\u6548\u3002\u5b9a\u671f\u91cd\u5efa\u6216\u91cd\u7d44\u7d22\u5f15\u53ef\u4ee5\u63d0\u5347\u67e5\u8a62\u6027\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u91cd\u5efa\u7d22\u5f15\uff1a<\/p>\n
ALTER INDEX ALL ON TableName REBUILD;<\/code><\/pre>\n
4. \u6e05\u7406\u65e5\u8a8c\u6587\u4ef6<\/h3>\n
SQL Server \u7684\u65e5\u8a8c\u6587\u4ef6\u6703\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\u800c\u589e\u9577\uff0c\u9019\u53ef\u80fd\u6703\u4f54\u7528\u5927\u91cf\u7684\u78c1\u789f\u7a7a\u9593\u3002\u53ef\u4ee5\u5b9a\u671f\u5099\u4efd\u548c\u622a\u65b7\u65e5\u8a8c\u4f86\u91cb\u653e\u7a7a\u9593\uff1a<\/p>\n
BACKUP LOG DatabaseName TO DISK = 'C:BackupDatabaseName_Log.trn';\nDBCC SHRINKFILE (DatabaseName_Log, 1);<\/code><\/pre>\n
\u76e3\u63a7\u548c\u7dad\u8b77<\/h2>\n
\u9664\u4e86\u5b9a\u671f\u6e05\u7406\u6578\u64da\u5eab\u5916\uff0c\u9084\u61c9\u8a72\u76e3\u63a7\u6578\u64da\u5eab\u7684\u6027\u80fd\u6307\u6a19\uff0c\u5982\u67e5\u8a62\u57f7\u884c\u6642\u9593\u3001CPU \u4f7f\u7528\u7387\u548c\u78c1\u789f\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u3002\u53ef\u4ee5\u4f7f\u7528 SQL Server \u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u4f86\u7372\u53d6\u9019\u4e9b\u4fe1\u606f\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u6e05\u7406 SQL Server \u6578\u64da\u5eab\u662f\u63d0\u5347\u5176\u904b\u884c\u6548\u7387\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u5b9a\u671f\u522a\u9664\u904e\u671f\u6578\u64da\u3001\u6e05\u7406\u91cd\u8907\u6578\u64da\u3001\u512a\u5316\u7d22\u5f15\u548c\u7ba1\u7406\u65e5\u8a8c\u6587\u4ef6\uff0c\u53ef\u4ee5\u986f\u8457\u6539\u5584\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\uff0c\u9084\u80fd\u6e1b\u5c11\u5b58\u5132\u6210\u672c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc \u9999\u6e2f VPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u5728 SQL Server \u4e2d\u6e05\u7406\u6578\u64da\u5eab\uff0c\u4ee5\u63d0\u5347\u904b\u884c\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u7ba1\u7406\u7684\u9ad8\u6548\u6027\u548c\u7a69\u5b9a\u6027\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-141397","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141397","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=141397"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141397\/revisions"}],"predecessor-version":[{"id":141398,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141397\/revisions\/141398"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=141397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=141397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=141397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}