{"id":175155,"date":"2024-11-08T03:12:30","date_gmt":"2024-11-07T19:12:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175155\/"},"modified":"2024-11-08T03:12:31","modified_gmt":"2024-11-07T19:12:31","slug":"%e5%a6%82%e4%bd%95%e4%bd%bfsql-server-%e6%95%b8%e6%93%9a%e5%ba%absql-server-%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175155\/","title":{"rendered":"\u5982\u4f55\u4f7fSQL Server \u6578\u64da\u5eabSQL Server \u6578\u64da\u5eab"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bd%bfsql-server-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9b%b4%e9%ab%98%e6%95%88-mQSnzRioxQ\">\u5982\u4f55\u4f7fSQL Server \u6578\u64da\u5eab\u66f4\u9ad8\u6548<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cSQL Server \u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u696d\u52d9\u74b0\u5883\u4e2d\u3002\u70ba\u4e86\u78ba\u4fdd SQL Server \u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\uff0c\u7ba1\u7406\u54e1\u9700\u8981\u63a1\u53d6\u4e00\u7cfb\u5217\u6700\u4f73\u5be6\u8e10\u548c\u512a\u5316\u7b56\u7565\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f SQL Server \u6578\u64da\u5eab\u66f4\u9ad8\u6548\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"1-%e5%ae%9a%e6%9c%9f%e7%b6%ad%e8%ad%b7%e6%95%b8%e6%93%9a%e5%ba%ab-mQSnzRioxQ\">1. \u5b9a\u671f\u7dad\u8b77\u6578\u64da\u5eab<\/h2>\n<p>\u5b9a\u671f\u7dad\u8b77\u662f\u78ba\u4fdd SQL Server \u6578\u64da\u5eab\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002\u9019\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u91cd\u5efa\u548c\u91cd\u7d44\u7d22\u5f15\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u7d22\u5f15\u53ef\u80fd\u6703\u8b8a\u5f97\u788e\u7247\u5316\uff0c\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u53ef\u4ee5\u91cd\u5efa\u7d22\u5f15\uff1a<\/li>\n<\/ul>\n<pre><code>ALTER INDEX ALL ON \u8868\u540d REBUILD;<\/code><\/pre>\n<ul>\n<li><strong>\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff1a<\/strong>\u7d71\u8a08\u4fe1\u606f\u5e6b\u52a9 SQL Server \u78ba\u5b9a\u6700\u4f73\u7684\u67e5\u8a62\u57f7\u884c\u8a08\u5283\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff1a<\/li>\n<\/ul>\n<pre><code>UPDATE STATISTICS \u8868\u540d;<\/code><\/pre>\n<h2 id=\"2-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-mQSnzRioxQ\">2. \u512a\u5316\u67e5\u8a62\u6027\u80fd<\/h2>\n<p>\u67e5\u8a62\u6027\u80fd\u7684\u512a\u5316\u5c0d\u65bc\u63d0\u9ad8\u6574\u9ad4\u6578\u64da\u5eab\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u67e5\u8a62\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u9069\u7576\u7684\u7d22\u5f15\uff1a<\/strong>\u78ba\u4fdd\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5217\u6709\u9069\u7576\u7684\u7d22\u5f15\uff0c\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528 SELECT *\uff1a<\/strong>\u50c5\u9078\u64c7\u9700\u8981\u7684\u5217\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\u3002<\/li>\n<li><strong>\u4f7f\u7528 JOIN \u800c\u975e\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u53ef\u80fd\u7684\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528 JOIN \u4f86\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e9%85%8d%e7%bd%ae-sql-server-%e8%a8%ad%e7%bd%ae-mQSnzRioxQ\">3. \u914d\u7f6e SQL Server \u8a2d\u7f6e<\/h2>\n<p>\u6b63\u78ba\u7684\u914d\u7f6e\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8 SQL Server \u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u91cd\u8981\u7684\u8a2d\u7f6e\uff1a<\/p>\n<ul>\n<li><strong>\u6700\u5927\u5167\u5b58\u8a2d\u7f6e\uff1a<\/strong>\u78ba\u4fdd SQL Server \u7684\u6700\u5927\u5167\u5b58\u8a2d\u7f6e\u4e0d\u6703\u8d85\u904e\u7cfb\u7d71\u53ef\u7528\u5167\u5b58\u7684 80%\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u7cfb\u7d71\u56e0\u5167\u5b58\u4e0d\u8db3\u800c\u8b8a\u6162\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u6062\u5fa9\u6a21\u5f0f\uff1a<\/strong>\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6062\u5fa9\u6a21\u5f0f\uff08\u5982\u5b8c\u6574\u3001\u7c21\u55ae\u6216\u5927\u5bb9\u91cf\u65e5\u8a8c\uff09\uff0c\u4ee5\u5e73\u8861\u6027\u80fd\u548c\u6578\u64da\u4fdd\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%88%86%e6%9e%90%e6%80%a7%e8%83%bd-mQSnzRioxQ\">4. \u76e3\u63a7\u548c\u5206\u6790\u6027\u80fd<\/h2>\n<p>\u6301\u7e8c\u76e3\u63a7 SQL Server \u7684\u6027\u80fd\u662f\u78ba\u4fdd\u5176\u9ad8\u6548\u904b\u884c\u7684\u5fc5\u8981\u6b65\u9a5f\u3002\u53ef\u4ee5\u4f7f\u7528 SQL Server Profiler \u548c\u52d5\u614b\u7ba1\u7406\u8996\u5716\uff08DMVs\uff09\u4f86\u5206\u6790\u6027\u80fd\u554f\u984c\u3002<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 SQL Server Profiler\uff1a<\/strong>\u9019\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u6355\u7372\u548c\u5206\u6790 SQL Server \u7684\u4e8b\u4ef6\u3002<\/li>\n<li><strong>\u67e5\u8a62\u52d5\u614b\u7ba1\u7406\u8996\u5716\uff1a<\/strong>\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u7576\u524d\u7684\u67e5\u8a62\u6027\u80fd\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT TOP 10\n    total_worker_time\/1000 AS CPU_Time,\n    total_elapsed_time\/1000 AS Duration,\n    execution_count,\n    SUBSTRING(qt.text, (qs.statement_start_offset\/2)+1,\n    ((CASE qs.statement_end_offset\n    WHEN -1 THEN DATALENGTH(qt.text)\n    ELSE qs.statement_end_offset END\n    - qs.statement_start_offset)\/2) + 1) AS query_text\nFROM sys.dm_exec_query_stats AS qs\nCROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt\nORDER BY total_worker_time DESC;<\/code><\/pre>\n<h2 id=\"5-%e8%80%83%e6%85%ae%e7%a1%ac%e9%ab%94%e5%8d%87%e7%b4%9a-mQSnzRioxQ\">5. \u8003\u616e\u786c\u9ad4\u5347\u7d1a<\/h2>\n<p>\u5982\u679c\u7d93\u904e\u512a\u5316\u5f8c\u4ecd\u7136\u7121\u6cd5\u6eff\u8db3\u6027\u80fd\u9700\u6c42\uff0c\u53ef\u80fd\u9700\u8981\u8003\u616e\u5347\u7d1a\u786c\u9ad4\u3002\u589e\u52a0\u5167\u5b58\u3001\u4f7f\u7528\u66f4\u5feb\u7684\u786c\u789f\uff08\u5982 SSD\uff09\u6216\u5347\u7d1a CPU \u90fd\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8 SQL Server \u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mQSnzRioxQ\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u5b9a\u671f\u7dad\u8b77\u3001\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3001\u914d\u7f6e SQL Server \u8a2d\u7f6e\u3001\u76e3\u63a7\u6027\u80fd\u4ee5\u53ca\u8003\u616e\u786c\u9ad4\u5347\u7d1a\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8 SQL Server \u6578\u64da\u5eab\u7684\u6548\u7387\u3002\u9019\u4e9b\u63aa\u65bd\u4e0d\u50c5\u80fd\u63d0\u5347\u6578\u64da\u5eab\u7684\u97ff\u61c9\u901f\u5ea6\uff0c\u9084\u80fd\u6539\u5584\u6574\u9ad4\u7528\u6236\u9ad4\u9a57\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u512a\u5316SQL Server\u6578\u64da\u5eab\uff0c\u63d0\u5347\u6027\u80fd\u548c\u5b89\u5168\u6027\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u53ef\u7528\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-175155","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175155","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=175155"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175155\/revisions"}],"predecessor-version":[{"id":175156,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175155\/revisions\/175156"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}