{"id":138233,"date":"2024-10-31T13:16:24","date_gmt":"2024-10-31T05:16:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/138233\/"},"modified":"2024-10-31T13:16:25","modified_gmt":"2024-10-31T05:16:25","slug":"sql-server%e9%8e%96%e8%87%aa%e5%ae%9a%e7%be%a9%e7%9a%84%e7%a4%ba%e4%be%8b%e6%bc%94%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/138233\/","title":{"rendered":"SQL Server\u9396\u81ea\u5b9a\u7fa9\u7684\u793a\u4f8b\u6f14\u793a"},"content":{"rendered":"<h1 id=\"sql-server%e9%8e%96%e8%87%aa%e5%ae%9a%e7%be%a9%e7%9a%84%e7%a4%ba%e4%be%8b%e6%bc%94%e7%a4%ba-GaWytYnVHs\">SQL Server\u9396\u81ea\u5b9a\u7fa9\u7684\u793a\u4f8b\u6f14\u793a<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u9396\u5b9a\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u6a5f\u5236\u3002SQL Server\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u806f\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u5b9a\u6a5f\u5236\u4f86\u7ba1\u7406\u4e26\u767c\u8a2a\u554f\u3002\u672c\u6587\u5c07\u63a2\u8a0eSQL Server\u4e2d\u7684\u9396\u5b9a\u6a5f\u5236\uff0c\u4e26\u63d0\u4f9b\u81ea\u5b9a\u7fa9\u9396\u7684\u793a\u4f8b\u6f14\u793a\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%8e%96%e5%ae%9a%ef%bc%9f-GaWytYnVHs\">\u4ec0\u9ebc\u662f\u9396\u5b9a\uff1f<\/h2>\n<p>\u9396\u5b9a\u662f\u7528\u4f86\u63a7\u5236\u5c0d\u8cc7\u6599\u5eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u6b63\u5728\u8a2a\u554f\u67d0\u500b\u8cc7\u6e90\u6642\uff0cSQL Server\u6703\u5c0d\u8a72\u8cc7\u6e90\u52a0\u9396\uff0c\u4ee5\u9632\u6b62\u5176\u4ed6\u4e8b\u52d9\u540c\u6642\u4fee\u6539\u8a72\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002SQL Server\u652f\u6301\u591a\u7a2e\u9396\u5b9a\u985e\u578b\uff0c\u5305\u62ec\u884c\u9396\u3001\u9801\u9396\u548c\u8868\u9396\u7b49\u3002<\/p>\n<h2 id=\"sql-server%e4%b8%ad%e7%9a%84%e9%8e%96%e5%ae%9a%e9%a1%9e%e5%9e%8b-GaWytYnVHs\">SQL Server\u4e2d\u7684\u9396\u5b9a\u985e\u578b<\/h2>\n<ul>\n<li><strong>\u884c\u9396\uff08Row Lock\uff09<\/strong>: \u53ea\u9396\u5b9a\u7279\u5b9a\u7684\u884c\uff0c\u5141\u8a31\u5176\u4ed6\u4e8b\u52d9\u8a2a\u554f\u540c\u4e00\u8868\u4e2d\u7684\u5176\u4ed6\u884c\u3002<\/li>\n<li><strong>\u9801\u9396\uff08Page Lock\uff09<\/strong>: \u9396\u5b9a\u4e00\u500b\u9801\u9762\uff0c\u901a\u5e38\u5305\u542b\u591a\u884c\u6578\u64da\u3002<\/li>\n<li><strong>\u8868\u9396\uff08Table Lock\uff09<\/strong>: \u9396\u5b9a\u6574\u500b\u8868\uff0c\u9632\u6b62\u5176\u4ed6\u4e8b\u52d9\u5c0d\u8a72\u8868\u9032\u884c\u4efb\u4f55\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u610f\u5411\u9396\uff08Intent Lock\uff09<\/strong>: \u7528\u65bc\u6307\u793a\u4e00\u500b\u4e8b\u52d9\u6253\u7b97\u5728\u66f4\u4f4e\u5c64\u7d1a\u4e0a\u52a0\u9396\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%87%aa%e5%ae%9a%e7%be%a9%e9%8e%96%e7%9a%84%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-GaWytYnVHs\">\u81ea\u5b9a\u7fa9\u9396\u7684\u4f7f\u7528\u5834\u666f<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u81ea\u5b9a\u7fa9\u9396\u4f86\u6eff\u8db3\u7279\u5b9a\u7684\u696d\u52d9\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u7576\u9700\u8981\u5728\u591a\u500b\u4e8b\u52d9\u4e4b\u9593\u5354\u8abf\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u6642\uff0c\u81ea\u5b9a\u7fa9\u9396\u53ef\u4ee5\u63d0\u4f9b\u66f4\u7d30\u7c92\u5ea6\u7684\u63a7\u5236\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8%e8%87%aa%e5%ae%9a%e7%be%a9%e9%8e%96-GaWytYnVHs\">\u793a\u4f8b\uff1a\u4f7f\u7528\u81ea\u5b9a\u7fa9\u9396<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u81ea\u5b9a\u7fa9\u9396\u7684\u793a\u4f8b\u3002\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5c07\u5275\u5efa\u4e00\u500b\u81ea\u5b9a\u7fa9\u9396\u4f86\u63a7\u5236\u5c0d\u4e00\u500b\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002<\/p>\n<pre><code>-- \u5275\u5efa\u4e00\u500b\u793a\u4f8b\u8868\nCREATE TABLE SharedResource (\n    ResourceID INT PRIMARY KEY,\n    ResourceValue NVARCHAR(100)\n);\n\n-- \u958b\u59cb\u4e00\u500b\u4e8b\u52d9\nBEGIN TRANSACTION;\n\n-- \u7372\u53d6\u81ea\u5b9a\u7fa9\u9396\nEXEC sp_getapplock @Resource = 'MyCustomLock', @LockMode = 'Exclusive';\n\n-- \u57f7\u884c\u4e00\u4e9b\u64cd\u4f5c\nUPDATE SharedResource SET ResourceValue = 'New Value' WHERE ResourceID = 1;\n\n-- \u91cb\u653e\u81ea\u5b9a\u7fa9\u9396\nEXEC sp_releaseapplock @Resource = 'MyCustomLock', @LockOwner = 'Transaction';\n\n-- \u63d0\u4ea4\u4e8b\u52d9\nCOMMIT TRANSACTION;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86 <code>sp_getapplock<\/code> \u5b58\u5132\u904e\u7a0b\u4f86\u7372\u53d6\u4e00\u500b\u540d\u70ba &#8216;MyCustomLock&#8217; \u7684\u81ea\u5b9a\u7fa9\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\u6642\uff0c\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u8a2a\u554f\u8a72\u8cc7\u6e90\u3002\u5b8c\u6210\u64cd\u4f5c\u5f8c\uff0c\u6211\u5011\u4f7f\u7528 <code>sp_releaseapplock<\/code> \u91cb\u653e\u9396\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-GaWytYnVHs\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u4f7f\u7528\u81ea\u5b9a\u7fa9\u9396\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u9396\u7684\u7bc4\u570d\u548c\u6301\u6709\u6642\u9593\u6700\u5c0f\u5316\uff0c\u4ee5\u907f\u514d\u6b7b\u9396\u548c\u6027\u80fd\u554f\u984c\u3002<\/li>\n<li>\u5408\u7406\u8a2d\u8a08\u9396\u7684\u547d\u540d\uff0c\u4ee5\u4fbf\u65bc\u7ba1\u7406\u548c\u6392\u932f\u3002<\/li>\n<li>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u904e\u5ea6\u4f7f\u7528\u9396\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u6b64\u9700\u8981\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GaWytYnVHs\">\u7e3d\u7d50<\/h2>\n<p>SQL Server\u4e2d\u7684\u9396\u5b9a\u6a5f\u5236\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u904e\u4f7f\u7528\u81ea\u5b9a\u7fa9\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u7279\u5b9a\u60c5\u6cc1\u4e0b\u66f4\u9748\u6d3b\u5730\u63a7\u5236\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u4e86\u89e3\u9396\u7684\u985e\u578b\u53ca\u5176\u4f7f\u7528\u5834\u666f\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u548c\u5be6\u73fe\u8cc7\u6599\u5eab\u61c9\u7528\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22SQL Server\u9396\u81ea\u5b9a\u7fa9\u7684\u793a\u4f8b\u6f14\u793a\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u6578\u64da\u5eab\u9396\u5b9a\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u5b89\u5168\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-138233","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138233","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=138233"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138233\/revisions"}],"predecessor-version":[{"id":138234,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138233\/revisions\/138234"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=138233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=138233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=138233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}