{"id":143537,"date":"2024-10-31T23:54:19","date_gmt":"2024-10-31T15:54:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/143537\/"},"modified":"2024-10-31T23:54:20","modified_gmt":"2024-10-31T15:54:20","slug":"sql-server-%e9%8c%af%e8%aa%a4-601-%e7%94%b1%e6%96%bc%e6%95%b8%e6%93%9a%e7%a7%bb%e5%8b%95%ef%bc%8c%e7%84%a1%e6%b3%95%e7%b9%bc%e7%ba%8c%e4%bb%a5-nolock-%e6%96%b9%e5%bc%8f%e6%8e%83%e6%8f%8f%e3%80%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/143537\/","title":{"rendered":"SQL Server \u932f\u8aa4 601 \u7531\u65bc\u6578\u64da\u79fb\u52d5\uff0c\u7121\u6cd5\u7e7c\u7e8c\u4ee5 NOLOCK \u65b9\u5f0f\u6383\u63cf\u3002\u6545\u969c\u8655\u7406\u4fee\u5fa9\u652f\u6301\u9060\u7a0b"},"content":{"rendered":"<h1 id=\"sql-server-%e9%8c%af%e8%aa%a4-601%ef%bc%9a%e7%94%b1%e6%96%bc%e6%95%b8%e6%93%9a%e7%a7%bb%e5%8b%95%ef%bc%8c%e7%84%a1%e6%b3%95%e7%b9%bc%e7%ba%8c%e4%bb%a5-nolock-%e6%96%b9%e5%bc%8f%e6%8e%83%e6%8f%8f-rgYgykwBzS\">SQL Server \u932f\u8aa4 601\uff1a\u7531\u65bc\u6578\u64da\u79fb\u52d5\uff0c\u7121\u6cd5\u7e7c\u7e8c\u4ee5 NOLOCK \u65b9\u5f0f\u6383\u63cf<\/h1>\n<p>\u5728\u4f7f\u7528 SQL Server \u9032\u884c\u6578\u64da\u67e5\u8a62\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u3002\u5176\u4e2d\uff0c\u932f\u8aa4 601 \u662f\u4e00\u500b\u76f8\u5c0d\u5e38\u898b\u7684\u554f\u984c\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528 NOLOCK \u63d0\u793a\u6642\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e SQL Server \u932f\u8aa4 601 \u7684\u6210\u56e0\u3001\u5f71\u97ff\u53ca\u5176\u6545\u969c\u8655\u7406\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4-601-%e7%9a%84%e6%88%90%e5%9b%a0-rgYgykwBzS\">\u932f\u8aa4 601 \u7684\u6210\u56e0<\/h2>\n<p>SQL Server \u932f\u8aa4 601 \u901a\u5e38\u51fa\u73fe\u5728\u6578\u64da\u79fb\u52d5\u6216\u6578\u64da\u5eab\u7d50\u69cb\u8b8a\u66f4\u7684\u904e\u7a0b\u4e2d\u3002\u7576\u4f7f\u7528 NOLOCK \u63d0\u793a\u9032\u884c\u67e5\u8a62\u6642\uff0cSQL Server \u6703\u5617\u8a66\u4ee5\u975e\u9396\u5b9a\u7684\u65b9\u5f0f\u8b80\u53d6\u6578\u64da\uff0c\u9019\u610f\u5473\u8457\u5b83\u4e0d\u6703\u7b49\u5f85\u5176\u4ed6\u4e8b\u52d9\u5b8c\u6210\u3002\u7136\u800c\uff0c\u7576\u6578\u64da\u6b63\u5728\u88ab\u79fb\u52d5\u6216\u66f4\u65b0\u6642\uff0c\u9019\u7a2e\u67e5\u8a62\u65b9\u5f0f\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/p>\n<p>\u5177\u9ad4\u4f86\u8aaa\uff0c\u932f\u8aa4 601 \u7684\u4fe1\u606f\u901a\u5e38\u662f\uff1a\u201c\u7531\u65bc\u6578\u64da\u79fb\u52d5\uff0c\u7121\u6cd5\u7e7c\u7e8c\u4ee5 NOLOCK \u65b9\u5f0f\u6383\u63cf\u3002\u201d\u9019\u8868\u660e\u5728\u67e5\u8a62\u904e\u7a0b\u4e2d\uff0cSQL Server \u7121\u6cd5\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u9801\uff0c\u56e0\u70ba\u9019\u4e9b\u9801\u6b63\u5728\u88ab\u5176\u4ed6\u4e8b\u52d9\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"nolock-%e6%8f%90%e7%a4%ba%e7%9a%84%e4%bd%bf%e7%94%a8-rgYgykwBzS\">NOLOCK \u63d0\u793a\u7684\u4f7f\u7528<\/h2>\n<p>NOLOCK \u63d0\u793a\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u67e5\u8a62\u512a\u5316\u6280\u8853\uff0c\u5141\u8a31\u67e5\u8a62\u5728\u4e0d\u52a0\u9396\u7684\u60c5\u6cc1\u4e0b\u8b80\u53d6\u6578\u64da\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\u3002\u7136\u800c\uff0c\u4f7f\u7528 NOLOCK \u4e5f\u6709\u5176\u98a8\u96aa\uff0c\u56e0\u70ba\u5b83\u53ef\u80fd\u5c0e\u81f4\u8b80\u53d6\u5230\u4e0d\u4e00\u81f4\u7684\u6578\u64da\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4f7f\u7528 NOLOCK \u63d0\u793a\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM Orders WITH (NOLOCK) WHERE OrderDate &gt; 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