{"id":142017,"date":"2024-10-31T22:19:19","date_gmt":"2024-10-31T14:19:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/142017\/"},"modified":"2024-10-31T22:19:20","modified_gmt":"2024-10-31T14:19:20","slug":"sql-%e4%b8%ad%e7%82%ba%e4%bb%80%e9%ba%bc%e7%b6%93%e5%b8%b8%e8%a6%81%e5%8a%a0-nolock%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/142017\/","title":{"rendered":"SQL \u4e2d\u70ba\u4ec0\u9ebc\u7d93\u5e38\u8981\u52a0 NOLOCK\uff1f"},"content":{"rendered":"<h1 id=\"sql-%e4%b8%ad%e7%82%ba%e4%bb%80%e9%ba%bc%e7%b6%93%e5%b8%b8%e8%a6%81%e5%8a%a0-nolock%ef%bc%9f-MdsmIoewmr\">SQL \u4e2d\u70ba\u4ec0\u9ebc\u7d93\u5e38\u8981\u52a0 NOLOCK\uff1f<\/h1>\n<p>\u5728 SQL Server \u4e2d\uff0cNOLOCK 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\u662f\u4e00\u500b\u5408\u9069\u7684\u9078\u64c7\u3002<\/li>\n<\/ul>\n<h2 id=\"nolock-%e7%9a%84%e9%a2%a8%e9%9a%aa-MdsmIoewmr\">NOLOCK \u7684\u98a8\u96aa<\/h2>\n<p>\u5118\u7ba1 NOLOCK \u63d0\u4f9b\u4e86\u6027\u80fd\u4e0a\u7684\u512a\u52e2\uff0c\u4f46\u5b83\u4e5f\u5e36\u4f86\u4e86\u4e00\u4e9b\u98a8\u96aa\uff1a<\/p>\n<ul>\n<li><strong>\u9ad2\u8b80\uff1a<\/strong>\u4f7f\u7528 NOLOCK \u53ef\u80fd\u6703\u5c0e\u81f4\u9ad2\u8b80\uff0c\u5373\u67e5\u8a62\u8b80\u53d6\u5230\u5c1a\u672a\u63d0\u4ea4\u7684\u6578\u64da\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u4e00\u81f4\u7684\u7d50\u679c\u3002<\/li>\n<li><strong>\u4e0d\u4e00\u81f4\u7684\u6578\u64da\uff1a<\/strong>\u5728\u9ad8\u4f75\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u53ef\u80fd\u6703\u5728\u67e5\u8a62\u57f7\u884c\u671f\u9593\u767c\u751f\u8b8a\u5316\uff0c\u9019\u6703\u5c0e\u81f4\u67e5\u8a62\u7d50\u679c\u7684\u4e0d\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u96e3\u4ee5\u8abf\u8a66\uff1a<\/strong>\u7531\u65bc NOLOCK \u53ef\u80fd\u5c0e\u81f4\u4e0d\u4e00\u81f4\u7684\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u5728\u51fa\u73fe\u554f\u984c\u6642\uff0c\u8abf\u8a66\u548c\u6392\u67e5\u8b8a\u5f97\u66f4\u52a0\u56f0\u96e3\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-MdsmIoewmr\">\u7d50\u8ad6<\/h2>\n<p>NOLOCK \u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5728\u7279\u5b9a\u60c5\u6cc1\u4e0b\u63d0\u9ad8 SQL \u67e5\u8a62\u7684\u6027\u80fd\u3002\u7136\u800c\uff0c\u958b\u767c\u8005\u5728\u4f7f\u7528 NOLOCK \u6642\u5fc5\u9808\u8b39\u614e\uff0c\u56e0\u70ba\u5b83\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u548c\u9ad2\u8b80\u7b49\u554f\u984c\u3002\u5728\u9078\u64c7\u4f7f\u7528 NOLOCK \u4e4b\u524d\uff0c\u61c9\u8a72\u4ed4\u7d30\u8a55\u4f30\u67e5\u8a62\u7684\u9700\u6c42\u548c\u6578\u64da\u7684\u5b8c\u6574\u6027\u8981\u6c42\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a 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