{"id":138553,"date":"2024-10-31T15:28:18","date_gmt":"2024-10-31T07:28:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/138553\/"},"modified":"2024-10-31T15:28:19","modified_gmt":"2024-10-31T07:28:19","slug":"sql-server%e8%ae%80%e5%af%ab%e9%8e%96%ef%bc%9a%e7%a2%ba%e4%bf%9d%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8%e5%92%8c%e6%ad%a3%e7%a2%ba%e6%80%a7%ef%bc%88sqlserver%e8%ae%80%e5%af%ab%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/138553\/","title":{"rendered":"SQL Server\u8b80\u5beb\u9396\uff1a\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u548c\u6b63\u78ba\u6027\uff08sqlserver\u8b80\u5beb\u9396\uff09"},"content":{"rendered":"<h1 id=\"sql-server%e8%ae%80%e5%af%ab%e9%8e%96%ef%bc%9a%e7%a2%ba%e4%bf%9d%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8%e5%92%8c%e6%ad%a3%e7%a2%ba%e6%80%a7-qFwLqnhuAc\">SQL Server\u8b80\u5beb\u9396\uff1a\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u548c\u6b63\u78ba\u6027<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u6b63\u78ba\u6027\u81f3\u95dc\u91cd\u8981\u3002SQL Server\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u4fc2\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6a5f\u5236\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5176\u4e2d\uff0c\u8b80\u5beb\u9396\uff08Read\/Write Locks\uff09\u662f\u5176\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\uff0c\u80fd\u6709\u6548\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%ae%80%e5%af%ab%e9%8e%96%ef%bc%9f-qFwLqnhuAc\">\u4ec0\u9ebc\u662f\u8b80\u5beb\u9396\uff1f<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u6578\u64da\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u6b63\u5728\u8b80\u53d6\u6216\u5beb\u5165\u6578\u64da\u6642\uff0cSQL Server\u6703\u81ea\u52d5\u70ba\u8a72\u6578\u64da\u8cc7\u6e90\u52a0\u9396\uff0c\u4ee5\u9632\u6b62\u5176\u4ed6\u4e8b\u52d9\u540c\u6642\u5c0d\u5176\u9032\u884c\u4fee\u6539\u3002\u9019\u6a23\u7684\u9396\u53ef\u4ee5\u5206\u70ba\u5169\u7a2e\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>\u8b80\u9396\uff08Shared Lock\uff09<\/strong>\uff1a\u7576\u4e00\u500b\u4e8b\u52d9\u9700\u8981\u8b80\u53d6\u6578\u64da\u6642\uff0c\u6703\u52a0\u4e0a\u8b80\u9396\u3002\u9019\u7a2e\u9396\u5141\u8a31\u5176\u4ed6\u4e8b\u52d9\u4e5f\u80fd\u5920\u8b80\u53d6\u8a72\u6578\u64da\uff0c\u4f46\u4e0d\u5141\u8a31\u4efb\u4f55\u4e8b\u52d9\u5c0d\u5176\u9032\u884c\u5beb\u5165\u3002<\/li>\n<li><strong>\u5beb\u9396\uff08Exclusive Lock\uff09<\/strong>\uff1a\u7576\u4e00\u500b\u4e8b\u52d9\u9700\u8981\u5beb\u5165\u6578\u64da\u6642\uff0c\u6703\u52a0\u4e0a\u5beb\u9396\u3002\u9019\u7a2e\u9396\u6703\u963b\u6b62\u5176\u4ed6\u4e8b\u52d9\u5c0d\u8a72\u6578\u64da\u9032\u884c\u8b80\u53d6\u6216\u5beb\u5165\uff0c\u76f4\u5230\u8a72\u4e8b\u52d9\u5b8c\u6210\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%ae%80%e5%af%ab%e9%8e%96%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-qFwLqnhuAc\">\u8b80\u5beb\u9396\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u7576\u4e00\u500b\u4e8b\u52d9\u958b\u59cb\u6642\uff0cSQL Server\u6703\u6839\u64da\u9700\u8981\u81ea\u52d5\u52a0\u9396\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728SQL Server\u4e2d\u4f7f\u7528\u9396\uff1a<\/p>\n<pre><code>BEGIN TRANSACTION;\n\n-- \u52a0\u5165\u8b80\u9396\nSELECT * FROM Employees WITH (NOLOCK);\n\n-- \u52a0\u5165\u5beb\u9396\nUPDATE Employees SET Salary = Salary * 1.1 WHERE Department = 'Sales';\n\nCOMMIT TRANSACTION;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7b2c\u4e00\u500b\u67e5\u8a62\u4f7f\u7528\u4e86\u8b80\u9396\uff0c\u5141\u8a31\u5176\u4ed6\u4e8b\u52d9\u540c\u6642\u8b80\u53d6\u6578\u64da\u3002\u800c\u7b2c\u4e8c\u500b\u67e5\u8a62\u5247\u4f7f\u7528\u4e86\u5beb\u9396\uff0c\u78ba\u4fdd\u5728\u66f4\u65b0\u85aa\u8cc7\u6642\u4e0d\u6703\u6709\u5176\u4ed6\u4e8b\u52d9\u5e72\u64fe\u3002<\/p>\n<h2 id=\"%e9%8e%96%e7%9a%84%e7%b2%92%e5%ba%a6%e5%92%8c%e7%af%84%e5%9c%8d-qFwLqnhuAc\">\u9396\u7684\u7c92\u5ea6\u548c\u7bc4\u570d<\/h2>\n<p>SQL Server\u4e2d\u7684\u9396\u53ef\u4ee5\u6839\u64da\u7c92\u5ea6\u548c\u7bc4\u570d\u9032\u884c\u5206\u985e\u3002\u7c92\u5ea6\u6307\u7684\u662f\u9396\u5b9a\u7684\u6578\u64da\u7bc4\u570d\uff0c\u53ef\u4ee5\u662f\u884c\u7d1a\u3001\u9801\u7d1a\u6216\u8868\u7d1a\u3002\u884c\u7d1a\u9396\u7684\u7c92\u5ea6\u6700\u5c0f\uff0c\u80fd\u5920\u63d0\u9ad8\u4e26\u767c\u6027\uff0c\u4f46\u4e5f\u6703\u589e\u52a0\u7ba1\u7406\u7684\u8907\u96dc\u6027\u3002\u9801\u7d1a\u548c\u8868\u7d1a\u9396\u5247\u6703\u964d\u4f4e\u4e26\u767c\u6027\uff0c\u4f46\u7ba1\u7406\u76f8\u5c0d\u7c21\u55ae\u3002<\/p>\n<h3 id=\"%e9%8e%96%e7%9a%84%e5%8d%87%e7%b4%9a-qFwLqnhuAc\">\u9396\u7684\u5347\u7d1a<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0cSQL Server\u6703\u81ea\u52d5\u5c07\u591a\u500b\u5c0f\u9396\u5347\u7d1a\u70ba\u4e00\u500b\u5927\u9396\uff0c\u9019\u7a31\u70ba\u9396\u5347\u7d1a\u3002\u9019\u6a23\u505a\u7684\u76ee\u7684\u662f\u70ba\u4e86\u6e1b\u5c11\u7cfb\u7d71\u7684\u9396\u7ba1\u7406\u958b\u92b7\uff0c\u4f46\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b7b\u9396\u7684\u98a8\u96aa\u589e\u52a0\u3002\u56e0\u6b64\uff0c\u958b\u767c\u8005\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\u9700\u8981\u8003\u616e\u9396\u7684\u4f7f\u7528\uff0c\u4ee5\u907f\u514d\u6f5b\u5728\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n<h2 id=\"%e9%81%bf%e5%85%8d%e6%ad%bb%e9%8e%96-qFwLqnhuAc\">\u907f\u514d\u6b7b\u9396<\/h2>\n<p>\u6b7b\u9396\u662f\u6307\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\uff0c\u5c0e\u81f4\u6240\u6709\u4e8b\u52d9\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002\u70ba\u4e86\u907f\u514d\u6b7b\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u4e8b\u52d9\u4ee5\u76f8\u540c\u7684\u9806\u5e8f\u8a2a\u554f\u8cc7\u6e90\u3002<\/li>\n<li>\u4fdd\u6301\u4e8b\u52d9\u7684\u57f7\u884c\u6642\u9593\u76e1\u53ef\u80fd\u77ed\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u9694\u96e2\u7d1a\u5225\u4f86\u63a7\u5236\u9396\u7684\u884c\u70ba\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qFwLqnhuAc\">\u7e3d\u7d50<\/h2>\n<p>SQL Server\u7684\u8b80\u5beb\u9396\u6a5f\u5236\u662f\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u548c\u6b63\u78ba\u6027\u7684\u95dc\u9375\u7d44\u4ef6\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u8a2a\u554f\uff0c\u907f\u514d\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002\u4e86\u89e3\u9396\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5f71\u97ff\uff0c\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u8a2d\u8a08\u51fa\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5eab\u61c9\u7528\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u90e8\u7f72\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server\u7684\u8b80\u5beb\u9396\u6a5f\u5236\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u6b63\u78ba\u6027\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u4e26\u767c\u8655\u7406\u80fd\u529b\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-138553","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138553","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=138553"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138553\/revisions"}],"predecessor-version":[{"id":138554,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138553\/revisions\/138554"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=138553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=138553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=138553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}