{"id":196291,"date":"2024-11-13T22:02:24","date_gmt":"2024-11-13T14:02:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196291\/"},"modified":"2024-11-13T22:02:25","modified_gmt":"2024-11-13T14:02:25","slug":"%e6%95%b4%e7%90%86%e6%8a%8amssql-%e7%a2%8e%e7%89%87%e6%95%b4%e7%90%86%ef%bc%9a%e4%b8%80%e5%80%8b%e5%bf%85%e4%b8%8d%e5%8f%af%e5%b0%91%e7%9a%84%e9%81%8e%e7%a8%8b%ef%bc%88mssql-%e7%a2%8e%e7%89%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196291\/","title":{"rendered":"\u6574\u7406\u628amssql \u788e\u7247\u6574\u7406\uff1a\u4e00\u500b\u5fc5\u4e0d\u53ef\u5c11\u7684\u904e\u7a0b\uff08mssql \u788e\u7247\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%b4%e7%90%86%e6%8a%8amssql%e7%a2%8e%e7%89%87%e6%95%b4%e7%90%86%ef%bc%9a%e4%b8%80%e5%80%8b%e5%bf%85%e4%b8%8d%e5%8f%af%e5%b0%91%e7%9a%84%e9%81%8e%e7%a8%8b-tgWhGDuGBs\">\u6574\u7406\u628aMSSQL\u788e\u7247\u6574\u7406\uff1a\u4e00\u500b\u5fc5\u4e0d\u53ef\u5c11\u7684\u904e\u7a0b<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u788e\u7247\u5316\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528Microsoft SQL Server\uff08MSSQL\uff09\u6642\u3002\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\u548c\u8b8a\u66f4\uff0c\u6578\u64da\u5eab\u4e2d\u7684\u7d22\u5f15\u548c\u6578\u64da\u9801\u9762\u53ef\u80fd\u6703\u8b8a\u5f97\u4e0d\u9023\u7e8c\uff0c\u9019\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u548c\u6574\u9ad4\u7cfb\u7d71\u6548\u7387\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u9032\u884c\u788e\u7247\u6574\u7406\u662f\u4e00\u500b\u5fc5\u4e0d\u53ef\u5c11\u7684\u904e\u7a0b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%a2%8e%e7%89%87%e5%8c%96%ef%bc%9f-tgWhGDuGBs\">\u4ec0\u9ebc\u662f\u788e\u7247\u5316\uff1f<\/h2>\n<p>\u788e\u7247\u5316\u662f\u6307\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u9801\u9762\u4e0d\u518d\u9023\u7e8c\u5b58\u5132\uff0c\u5c0e\u81f4\u8b80\u53d6\u6578\u64da\u6642\u9700\u8981\u66f4\u591a\u7684I\/O\u64cd\u4f5c\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li>\u983b\u7e41\u7684\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\u3002<\/li>\n<li>\u4f7f\u7528\u53ef\u8b8a\u9577\u5ea6\u7684\u6578\u64da\u985e\u578b\uff0c\u5982VARCHAR\u6216NVARCHAR\u3002<\/li>\n<li>\u7d22\u5f15\u7684\u91cd\u5efa\u6216\u91cd\u7d44\u4e0d\u7576\u3002<\/li>\n<\/ul>\n<p>\u788e\u7247\u5316\u4e3b\u8981\u5206\u70ba\u5169\u7a2e\u985e\u578b\uff1a\u908f\u8f2f\u788e\u7247\u548c\u7269\u7406\u788e\u7247\u3002\u908f\u8f2f\u788e\u7247\u662f\u6307\u7d22\u5f15\u9801\u9762\u4e4b\u9593\u7684\u908f\u8f2f\u9806\u5e8f\u4e0d\u518d\u9023\u7e8c\uff0c\u800c\u7269\u7406\u788e\u7247\u5247\u662f\u6307\u6578\u64da\u9801\u9762\u5728\u78c1\u789f\u4e0a\u7684\u5be6\u969b\u5b58\u5132\u4f4d\u7f6e\u4e0d\u9023\u7e8c\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e8%a6%81%e6%95%b4%e7%90%86%e7%a2%8e%e7%89%87%ef%bc%9f-tgWhGDuGBs\">\u70ba\u4ec0\u9ebc\u8981\u6574\u7406\u788e\u7247\uff1f<\/h2>\n<p>\u6574\u7406\u788e\u7247\u7684\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u7576\u788e\u7247\u5316\u56b4\u91cd\u6642\uff0c\u67e5\u8a62\u6027\u80fd\u6703\u4e0b\u964d\uff0c\u56e0\u70ba\u7cfb\u7d71\u9700\u8981\u82b1\u8cbb\u66f4\u591a\u7684\u6642\u9593\u4f86\u8b80\u53d6\u4e0d\u9023\u7e8c\u7684\u6578\u64da\u9801\u9762\u3002\u9019\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u5ef6\u9072\uff0c\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u97ff\u61c9\u6642\u9593\u3002\u6b64\u5916\uff0c\u788e\u7247\u5316\u9084\u6703\u589e\u52a0\u78c1\u789f\u7684I\/O\u8ca0\u64d4\uff0c\u9032\u4e00\u6b65\u964d\u4f4e\u7cfb\u7d71\u7684\u6574\u9ad4\u6548\u7387\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%aa%a2%e6%9f%a5%e7%a2%8e%e7%89%87%e5%8c%96%e7%a8%8b%e5%ba%a6%ef%bc%9f-tgWhGDuGBs\">\u5982\u4f55\u6aa2\u67e5\u788e\u7247\u5316\u7a0b\u5ea6\uff1f<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u7d22\u5f15\u7684\u788e\u7247\u5316\u7a0b\u5ea6\uff1a<\/p>\n<pre><code>\nSELECT \n    DB_NAME(database_id) AS DatabaseName,\n    OBJECT_NAME(object_id) AS TableName,\n    index_id,\n    name AS IndexName,\n    avg_fragmentation_in_percent\nFROM \n    sys.dm_db_index_physical_stats(DB_ID(), NULL, NULL, NULL, NULL)\nWHERE \n    avg_fragmentation_in_percent &gt; 10\nORDER BY \n    avg_fragmentation_in_percent DESC;\n<\/code><\/pre>\n<p>\u9019\u6bb5\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u788e\u7247\u5316\u7a0b\u5ea6\u8d85\u904e10%\u7684\u7d22\u5f15\uff0c\u5e6b\u52a9\u7ba1\u7406\u54e1\u8b58\u5225\u9700\u8981\u6574\u7406\u7684\u7d22\u5f15\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%95%b4%e7%90%86%e7%a2%8e%e7%89%87%ef%bc%9f-tgWhGDuGBs\">\u5982\u4f55\u6574\u7406\u788e\u7247\uff1f<\/h2>\n<p>MSSQL\u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u788e\u7247\u6574\u7406\u65b9\u6cd5\uff1a\u91cd\u7d44\uff08REORGANIZE\uff09\u548c\u91cd\u5efa\uff08REBUILD\uff09\u3002<\/p>\n<h3 id=\"1-%e9%87%8d%e7%b5%84%ef%bc%88reorganize%ef%bc%89-tgWhGDuGBs\">1. \u91cd\u7d44\uff08REORGANIZE\uff09<\/h3>\n<p>\u91cd\u7d44\u662f\u4e00\u7a2e\u5728\u7dda\u64cd\u4f5c\uff0c\u9069\u5408\u65bc\u8f15\u5ea6\u788e\u7247\u5316\u7684\u60c5\u6cc1\u3002\u5b83\u6703\u91cd\u65b0\u6392\u5217\u7d22\u5f15\u9801\u9762\uff0c\u4f7f\u5176\u66f4\u9023\u7e8c\uff0c\u4f46\u4e0d\u6703\u9396\u5b9a\u6574\u500b\u8868\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u91cd\u7d44\uff1a<\/p>\n<pre><code>\nALTER INDEX IndexName ON TableName REORGANIZE;\n<\/code><\/pre>\n<h3 id=\"2-%e9%87%8d%e5%bb%ba%ef%bc%88rebuild%ef%bc%89-tgWhGDuGBs\">2. \u91cd\u5efa\uff08REBUILD\uff09<\/h3>\n<p>\u91cd\u5efa\u662f\u4e00\u7a2e\u66f4\u5fb9\u5e95\u7684\u64cd\u4f5c\uff0c\u9069\u5408\u65bc\u56b4\u91cd\u788e\u7247\u5316\u7684\u60c5\u6cc1\u3002\u5b83\u6703\u5b8c\u5168\u91cd\u5efa\u7d22\u5f15\uff0c\u4e26\u4e14\u5728\u64cd\u4f5c\u671f\u9593\u6703\u9396\u5b9a\u6574\u500b\u8868\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u91cd\u5efa\uff1a<\/p>\n<pre><code>\nALTER INDEX IndexName ON TableName REBUILD;\n<\/code><\/pre>\n<p>\u5728\u9032\u884c\u91cd\u5efa\u6642\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u4e00\u4e9b\u9078\u9805\uff0c\u4f8b\u5982\u6307\u5b9a\u586b\u5145\u56e0\u5b50\uff08FILLFACTOR\uff09\uff0c\u4ee5\u63a7\u5236\u9801\u9762\u7684\u586b\u5145\u7a0b\u5ea6\uff0c\u5f9e\u800c\u6e1b\u5c11\u672a\u4f86\u7684\u788e\u7247\u5316\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-tgWhGDuGBs\">\u7e3d\u7d50<\/h2>\n<p>\u6574\u7406MSSQL\u788e\u7247\u662f\u4e00\u500b\u91cd\u8981\u7684\u7dad\u8b77\u904e\u7a0b\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u548c\u6574\u7406\u788e\u7247\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u4f9b\u66f4\u597d\u7684\u8cc7\u6e90\u548c\u652f\u6301\uff0c\u9032\u4e00\u6b65\u63d0\u5347\u6578\u64da\u5eab\u7684\u904b\u884c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MSSQL\u788e\u7247\u6574\u7406\u7684\u91cd\u8981\u6027\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u78ba\u4fdd\u7cfb\u7d71\u904b\u884c\u6d41\u66a2\uff0c\u907f\u514d\u8cc7\u6e90\u6d6a\u8cbb\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-196291","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196291","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=196291"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196291\/revisions"}],"predecessor-version":[{"id":196292,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196291\/revisions\/196292"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}