{"id":140840,"date":"2024-10-31T21:01:25","date_gmt":"2024-10-31T13:01:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/140840\/"},"modified":"2024-10-31T21:01:26","modified_gmt":"2024-10-31T13:01:26","slug":"sql-server-%e5%ad%b8%e7%bf%92%e7%ad%86%e8%a8%98%e4%b9%8b%e4%b8%80%e5%b0%8d%e5%a4%9a%e7%9a%84%e5%88%aa%e9%99%a4%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/140840\/","title":{"rendered":"SQL Server \u5b78\u7fd2\u7b46\u8a18\u4e4b\u4e00\u5c0d\u591a\u7684\u522a\u9664\u554f\u984c"},"content":{"rendered":"

SQL Server \u5b78\u7fd2\u7b46\u8a18\u4e4b\u4e00\u5c0d\u591a\u7684\u522a\u9664\u554f\u984c<\/h1>\n

\u5728\u8cc7\u6599\u5eab\u8a2d\u8a08\u4e2d\uff0c\u4e00\u5c0d\u591a\u7684\u95dc\u4fc2\u662f\u975e\u5e38\u5e38\u898b\u7684\u3002\u9019\u7a2e\u95dc\u4fc2\u901a\u5e38\u51fa\u73fe\u5728\u4e3b\u8868\u548c\u5f9e\u8868\u4e4b\u9593\uff0c\u4f8b\u5982\u4e00\u500b\u5ba2\u6236\u53ef\u4ee5\u6709\u591a\u500b\u8a02\u55ae\u3002\u5728 SQL Server \u4e2d\uff0c\u522a\u9664\u4e00\u5c0d\u591a\u95dc\u4fc2\u4e2d\u7684\u8cc7\u6599\u6642\uff0c\u5fc5\u9808\u8b39\u614e\u8655\u7406\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8cc7\u6599\u907a\u5931\u6216\u5b8c\u6574\u6027\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728 SQL Server \u4e2d\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u4e00\u5c0d\u591a\u7684\u522a\u9664\u554f\u984c\u3002<\/p>\n

\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u5728\u4e00\u5c0d\u591a\u7684\u95dc\u4fc2\u4e2d\uff0c\u4e3b\u8868\uff08Parent Table\uff09\u4e2d\u7684\u6bcf\u4e00\u689d\u8a18\u9304\u53ef\u4ee5\u8207\u5f9e\u8868\uff08Child Table\uff09\u4e2d\u7684\u591a\u689d\u8a18\u9304\u76f8\u95dc\u806f\u3002\u8209\u4f8b\u4f86\u8aaa\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba Customers<\/code> \u7684\u4e3b\u8868\u548c\u4e00\u500b\u540d\u70ba Orders<\/code> \u7684\u5f9e\u8868\uff0c\u5ba2\u6236\u53ef\u4ee5\u64c1\u6709\u591a\u500b\u8a02\u55ae\u3002\u9019\u7a2e\u7d50\u69cb\u5728\u8cc7\u6599\u5eab\u8a2d\u8a08\u4e2d\u975e\u5e38\u666e\u904d\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u6709\u6548\u5730\u7d44\u7e54\u548c\u7ba1\u7406\u8cc7\u6599\u3002<\/p>\n

\u522a\u9664\u64cd\u4f5c\u7684\u6311\u6230<\/h2>\n

\u5728\u522a\u9664\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u6642\uff0c\u5fc5\u9808\u8003\u616e\u5230\u5f9e\u8868\u4e2d\u76f8\u95dc\u806f\u7684\u8a18\u9304\u3002\u5982\u679c\u4e0d\u5c0f\u5fc3\u522a\u9664\u4e86\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u800c\u672a\u8655\u7406\u5f9e\u8868\u4e2d\u7684\u8cc7\u6599\uff0c\u5c07\u6703\u5c0e\u81f4\u8cc7\u6599\u4e0d\u4e00\u81f4\u6216\u5b8c\u6574\u6027\u554f\u984c\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0cSQL Server \u63d0\u4f9b\u4e86\u5e7e\u7a2e\u65b9\u6cd5\u4f86\u8655\u7406\u4e00\u5c0d\u591a\u7684\u522a\u9664\u64cd\u4f5c\u3002<\/p>\n

1. \u4f7f\u7528\u5916\u9375\u7d04\u675f<\/h3>\n

\u5728 SQL Server \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5916\u9375\u7d04\u675f\u4f86\u7dad\u8b77\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u3002\u7576\u5728\u4e3b\u8868\u4e2d\u522a\u9664\u4e00\u689d\u8a18\u9304\u6642\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u5916\u9375\u7d04\u675f\u7684\u884c\u70ba\uff0c\u4ee5\u81ea\u52d5\u522a\u9664\u5f9e\u8868\u4e2d\u7684\u76f8\u95dc\u8a18\u9304\u3002\u9019\u7a2e\u65b9\u6cd5\u7a31\u70ba\u300c\u7d1a\u806f\u522a\u9664\u300d\u3002<\/p>\n

ALTER TABLE Orders\nADD CONSTRAINT FK_Customer_Order\nFOREIGN KEY (CustomerID) REFERENCES Customers(CustomerID)\nON DELETE CASCADE;<\/code><\/pre>\n
\u4e0a\u8ff0 SQL \u8a9e\u53e5\u5c07\u5728\u522a\u9664 Customers<\/code> \u8868\u4e2d\u7684\u5ba2\u6236\u6642\uff0c\u81ea\u52d5\u522a\u9664\u6240\u6709\u76f8\u95dc\u7684 Orders<\/code> \u8a18\u9304\u3002<\/p>\n
2. \u624b\u52d5\u522a\u9664<\/h3>\n
\u5982\u679c\u4e0d\u5e0c\u671b\u4f7f\u7528\u7d1a\u806f\u522a\u9664\uff0c\u5247\u53ef\u4ee5\u9078\u64c7\u624b\u52d5\u522a\u9664\u5f9e\u8868\u4e2d\u7684\u8a18\u9304\u3002\u5728\u522a\u9664\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u522a\u9664\u5f9e\u8868\u4e2d\u7684\u76f8\u95dc\u8a18\u9304\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u4e0d\u6703\u53d7\u5230\u5f71\u97ff\u3002<\/p>\n
BEGIN TRANSACTION;\n\nDELETE FROM Orders WHERE CustomerID = @CustomerID;\nDELETE FROM Customers WHERE CustomerID = @CustomerID;\n\nCOMMIT TRANSACTION;<\/code><\/pre>\n
\u5728\u9019\u6bb5 SQL \u8a9e\u53e5\u4e2d\uff0c\u9996\u5148\u522a\u9664\u4e86\u6240\u6709\u8207\u7279\u5b9a\u5ba2\u6236\u76f8\u95dc\u7684\u8a02\u55ae\uff0c\u7136\u5f8c\u518d\u522a\u9664\u8a72\u5ba2\u6236\u7684\u8a18\u9304\u3002\u4f7f\u7528\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u907f\u514d\u8cc7\u6599\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002<\/p>\n
3. \u4f7f\u7528\u89f8\u767c\u5668<\/h3>\n
\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528\u89f8\u767c\u5668\u4f86\u81ea\u52d5\u8655\u7406\u522a\u9664\u64cd\u4f5c\u3002\u7576\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u89f8\u767c\u5668\u53ef\u4ee5\u81ea\u52d5\u57f7\u884c\u76f8\u61c9\u7684\u522a\u9664\u64cd\u4f5c\u3002<\/p>\n
CREATE TRIGGER trg_DeleteCustomer\nON Customers\nAFTER DELETE\nAS\nBEGIN\n    DELETE FROM Orders WHERE CustomerID IN (SELECT CustomerID FROM deleted);\nEND;<\/code><\/pre>\n
\u9019\u6bb5 SQL \u8a9e\u53e5\u5275\u5efa\u4e86\u4e00\u500b\u89f8\u767c\u5668\uff0c\u7576 Customers<\/code> \u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u6703\u81ea\u52d5\u522a\u9664\u6240\u6709\u76f8\u95dc\u7684 Orders<\/code> \u8a18\u9304\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728 SQL Server \u4e2d\u8655\u7406\u4e00\u5c0d\u591a\u7684\u522a\u9664\u554f\u984c\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u5916\u9375\u7d04\u675f\u3001\u624b\u52d5\u522a\u9664\u9084\u662f\u89f8\u767c\u5668\uff0c\u90fd\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u4f86\u6c7a\u5b9a\u3002\u6b63\u78ba\u7684\u522a\u9664\u7b56\u7565\u4e0d\u50c5\u80fd\u5920\u7dad\u8b77\u8cc7\u6599\u7684\u5b8c\u6574\u6027\uff0c\u9084\u80fd\u63d0\u9ad8\u8cc7\u6599\u5eab\u7684\u6027\u80fd\u548c\u53ef\u7ba1\u7406\u6027\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u7528\u6236\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u8cc7\u6599\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684\u670d\u52d9\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22 SQL Server \u4e2d\u4e00\u5c0d\u591a\u95dc\u4fc2\u7684\u522a\u9664\u554f\u984c\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u8cc7\u6599\u5b8c\u6574\u6027\u8207\u907f\u514d\u5916\u9375\u7d04\u675f\u932f\u8aa4\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-140840","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140840","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=140840"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140840\/revisions"}],"predecessor-version":[{"id":140841,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140840\/revisions\/140841"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=140840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=140840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=140840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}