{"id":140428,"date":"2024-10-31T20:38:20","date_gmt":"2024-10-31T12:38:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/140428\/"},"modified":"2024-10-31T20:38:21","modified_gmt":"2024-10-31T12:38:21","slug":"sql-server%e5%a4%96%e9%8d%b5%e5%88%aa%e9%99%a4%e8%a6%8f%e5%89%87%e7%9a%84%e8%aa%aa%e6%98%8e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/140428\/","title":{"rendered":"sql server\u5916\u9375\u522a\u9664\u898f\u5247\u7684\u8aaa\u660e"},"content":{"rendered":"<h1 id=\"sql-server-%e5%a4%96%e9%8d%b5%e5%88%aa%e9%99%a4%e8%a6%8f%e5%89%87%e7%9a%84%e8%aa%aa%e6%98%8e-brujsmPdcT\">SQL Server \u5916\u9375\u522a\u9664\u898f\u5247\u7684\u8aaa\u660e<\/h1>\n<p>\u5728\u95dc\u806f\u5f0f\u8cc7\u6599\u5eab\u4e2d\uff0c\u5916\u9375\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u7d04\u675f\u689d\u4ef6\uff0c\u7528\u65bc\u7dad\u8b77\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u3002SQL Server \u4e2d\u7684\u5916\u9375\u95dc\u4fc2\u53ef\u4ee5\u78ba\u4fdd\u8cc7\u6599\u8868\u4e4b\u9593\u7684\u95dc\u806f\u6027\uff0c\u4e26\u9632\u6b62\u4e0d\u4e00\u81f4\u7684\u8cc7\u6599\u51fa\u73fe\u3002\u7576\u6d89\u53ca\u5230\u522a\u9664\u64cd\u4f5c\u6642\uff0c\u5916\u9375\u7684\u522a\u9664\u898f\u5247\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u4e0d\u7576\u7684\u522a\u9664\u53ef\u80fd\u6703\u5c0e\u81f4\u8cc7\u6599\u7684\u4e1f\u5931\u6216\u4e0d\u4e00\u81f4\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e SQL Server \u4e2d\u5916\u9375\u7684\u522a\u9664\u898f\u5247\u53ca\u5176\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e5%a4%96%e9%8d%b5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-brujsmPdcT\">\u5916\u9375\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5916\u9375\u662f\u6307\u4e00\u500b\u8cc7\u6599\u8868\u4e2d\u7684\u4e00\u500b\u6216\u591a\u500b\u6b04\u4f4d\uff0c\u9019\u4e9b\u6b04\u4f4d\u7684\u503c\u5fc5\u9808\u8207\u53e6\u4e00\u500b\u8cc7\u6599\u8868\u4e2d\u7684\u4e3b\u9375\u6216\u552f\u4e00\u9375\u7684\u503c\u76f8\u5339\u914d\u3002\u9019\u7a2e\u95dc\u4fc2\u4f7f\u5f97\u8cc7\u6599\u8868\u4e4b\u9593\u53ef\u4ee5\u5efa\u7acb\u806f\u7e6b\uff0c\u4e26\u78ba\u4fdd\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u5169\u500b\u8cc7\u6599\u8868\uff1a<code>Customers<\/code> \u548c <code>Orders<\/code>\uff0c\u5176\u4e2d <code>Orders<\/code> \u8868\u4e2d\u7684 <code>CustomerID<\/code> \u6b04\u4f4d\u662f\u6307\u5411 <code>Customers<\/code> \u8868\u7684\u5916\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6bcf\u4e00\u7b46\u8a02\u55ae\u90fd\u5c0d\u61c9\u5230\u4e00\u4f4d\u6709\u6548\u7684\u5ba2\u6236\u3002<\/p>\n<h2 id=\"%e5%88%aa%e9%99%a4%e5%a4%96%e9%8d%b5%e7%9a%84%e8%a6%8f%e5%89%87-brujsmPdcT\">\u522a\u9664\u5916\u9375\u7684\u898f\u5247<\/h2>\n<p>\u5728 SQL Server \u4e2d\uff0c\u7576\u522a\u9664\u4e00\u500b\u8cc7\u6599\u8868\u4e2d\u7684\u8a18\u9304\u6642\uff0c\u5916\u9375\u7684\u5b58\u5728\u6703\u5f71\u97ff\u522a\u9664\u64cd\u4f5c\u3002\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\u522a\u9664\u898f\u5247\uff1a<\/p>\n<ul>\n<li><strong>CASCADE \u522a\u9664\uff1a<\/strong>\u7576\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u5f15\u7528\u8a72\u8a18\u9304\u7684\u5b50\u8868\u4e2d\u7684\u8a18\u9304\u4e5f\u6703\u81ea\u52d5\u88ab\u522a\u9664\u3002\u4f8b\u5982\uff0c\u5982\u679c\u522a\u9664 <code>Customers<\/code> \u8868\u4e2d\u7684\u4e00\u4f4d\u5ba2\u6236\uff0c\u5247\u6240\u6709\u8207\u8a72\u5ba2\u6236\u76f8\u95dc\u7684\u8a02\u55ae\u4e5f\u6703\u88ab\u81ea\u52d5\u522a\u9664\u3002<\/li>\n<li><strong>SET NULL\uff1a<\/strong>\u7576\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u5f15\u7528\u8a72\u8a18\u9304\u7684\u5b50\u8868\u4e2d\u7684\u5916\u9375\u6b04\u4f4d\u6703\u88ab\u8a2d\u7f6e\u70ba NULL\u3002\u9019\u610f\u5473\u8457\u96d6\u7136\u8a02\u55ae\u4ecd\u7136\u5b58\u5728\uff0c\u4f46\u4e0d\u518d\u8207\u4efb\u4f55\u5ba2\u6236\u76f8\u95dc\u806f\u3002<\/li>\n<li><strong>NO ACTION\uff1a<\/strong>\u9019\u662f\u9810\u8a2d\u884c\u70ba\uff0c\u7576\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u5982\u679c\u5b50\u8868\u4e2d\u4ecd\u6709\u5f15\u7528\u8a72\u8a18\u9304\u7684\u5916\u9375\uff0c\u5247\u522a\u9664\u64cd\u4f5c\u5c07\u6703\u5931\u6557\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u8cc7\u6599\u7684\u4e0d\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>SET DEFAULT\uff1a<\/strong>\u7576\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u5f15\u7528\u8a72\u8a18\u9304\u7684\u5b50\u8868\u4e2d\u7684\u5916\u9375\u6b04\u4f4d\u6703\u88ab\u8a2d\u7f6e\u70ba\u9810\u8a2d\u503c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%af%84%e4%be%8b-brujsmPdcT\">\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 SQL Server \u4e2d\u8a2d\u7f6e\u5916\u9375\u53ca\u5176\u522a\u9664\u898f\u5247\uff1a<\/p>\n<pre><code>CREATE TABLE Customers (\n    CustomerID INT PRIMARY KEY,\n    CustomerName NVARCHAR(100)\n);\n\nCREATE TABLE Orders (\n    OrderID INT PRIMARY KEY,\n    CustomerID INT,\n    OrderDate DATETIME,\n    FOREIGN KEY (CustomerID) REFERENCES Customers(CustomerID) ON DELETE CASCADE\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u7576 <code>Customers<\/code> \u8868\u4e2d\u7684\u4e00\u4f4d\u5ba2\u6236\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u8207\u8a72\u5ba2\u6236\u76f8\u95dc\u7684\u8a02\u55ae\u5c07\u81ea\u52d5\u88ab\u522a\u9664\uff0c\u56e0\u70ba\u6211\u5011\u4f7f\u7528\u4e86 <code>ON DELETE CASCADE<\/code> \u898f\u5247\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-brujsmPdcT\">\u7d50\u8ad6<\/h2>\n<p>\u4e86\u89e3 SQL Server \u4e2d\u5916\u9375\u7684\u522a\u9664\u898f\u5247\u5c0d\u65bc\u7dad\u8b77\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u522a\u9664\u898f\u5247\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6599\u4e4b\u9593\u7684\u95dc\u806f\u6027\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8cc7\u6599\u4e1f\u5931\u6216\u4e0d\u4e00\u81f4\u3002\u7121\u8ad6\u662f\u9078\u64c7 <code>CASCADE<\/code>\u3001<code>SET NULL<\/code> \u9084\u662f <code>NO ACTION<\/code>\uff0c\u90fd\u61c9\u6839\u64da\u5177\u9ad4\u60c5\u6cc1\u9032\u884c\u5408\u7406\u914d\u7f6e\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u60a8\u7684\u7cfb\u7d71\u4e2d\u5be6\u65bd\u9019\u4e9b\u898f\u5247\uff0c\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server\u5916\u9375\u522a\u9664\u898f\u5247\uff0c\u638c\u63e1\u5982\u4f55\u7ba1\u7406\u8cc7\u6599\u5b8c\u6574\u6027\u8207\u95dc\u806f\u6027\uff0c\u78ba\u4fdd\u6578\u64da\u64cd\u4f5c\u7684\u6b63\u78ba\u6027\u8207\u4e00\u81f4\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-140428","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140428","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=140428"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140428\/revisions"}],"predecessor-version":[{"id":140429,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140428\/revisions\/140429"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=140428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=140428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=140428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}