{"id":175057,"date":"2024-11-08T02:18:33","date_gmt":"2024-11-07T18:18:33","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175057\/"},"modified":"2024-11-08T02:18:34","modified_gmt":"2024-11-07T18:18:34","slug":"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4%e6%93%8d%e4%bd%9c-%e8%a8%ad%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175057\/","title":{"rendered":"\u5982\u4f55\u8a2d\u7f6e\u6578\u64da\u5eab\u7d1a\u806f\u522a\u9664\u64cd\u4f5c (\u8a2d\u7f6e\u6578\u64da\u5eab\u7d1a\u806f\u522a\u9664)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4%e6%93%8d%e4%bd%9c-bUCZankkcZ\">\u5982\u4f55\u8a2d\u7f6e\u6578\u64da\u5eab\u7d1a\u806f\u522a\u9664\u64cd\u4f5c<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7d1a\u806f\u522a\u9664\u64cd\u4f5c\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5177\u6709\u7236\u5b50\u95dc\u4fc2\u7684\u6578\u64da\u8868\u6642\u3002\u7576\u4e00\u500b\u7236\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u8207\u4e4b\u76f8\u95dc\u7684\u5b50\u8a18\u9304\u4e5f\u6703\u81ea\u52d5\u88ab\u522a\u9664\uff0c\u9019\u6a23\u53ef\u4ee5\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u8a2d\u7f6e\u7d1a\u806f\u522a\u9664\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4%ef%bc%9f-bUCZankkcZ\">\u4ec0\u9ebc\u662f\u7d1a\u806f\u522a\u9664\uff1f<\/h2>\n<p>\u7d1a\u806f\u522a\u9664\u662f\u4e00\u7a2e\u6578\u64da\u5eab\u7d04\u675f\uff0c\u7576\u4e00\u500b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u8207\u4e4b\u76f8\u95dc\u7684\u8a18\u9304\u4e5f\u6703\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u901a\u5e38\u7528\u65bc\u4e00\u5c0d\u591a\u7684\u95dc\u4fc2\u4e2d\uff0c\u4f8b\u5982\uff0c\u7576\u522a\u9664\u4e00\u500b\u7528\u6236\u6642\uff0c\u8a72\u7528\u6236\u7684\u6240\u6709\u8a02\u55ae\u4e5f\u61c9\u8a72\u88ab\u522a\u9664\u3002<\/p>\n<h2 id=\"%e8%a8%ad%e7%bd%ae%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4%e7%9a%84%e6%ad%a5%e9%a9%9f-bUCZankkcZ\">\u8a2d\u7f6e\u7d1a\u806f\u522a\u9664\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-mysql-%e8%a8%ad%e7%bd%ae%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4-bUCZankkcZ\">1. \u4f7f\u7528 MySQL \u8a2d\u7f6e\u7d1a\u806f\u522a\u9664<\/h3>\n<p>\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u5728\u5275\u5efa\u5916\u9375\u7d04\u675f\u6642\u8a2d\u7f6e\u7d1a\u806f\u522a\u9664\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100) NOT NULL\n);\n\nCREATE TABLE orders (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    user_id INT,\n    order_date DATETIME,\n    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u7576\u4e00\u500b\u7528\u6236\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u8207\u8a72\u7528\u6236\u76f8\u95dc\u7684\u8a02\u55ae\u4e5f\u6703\u88ab\u81ea\u52d5\u522a\u9664\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-postgresql-%e8%a8%ad%e7%bd%ae%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4-bUCZankkcZ\">2. \u4f7f\u7528 PostgreSQL \u8a2d\u7f6e\u7d1a\u806f\u522a\u9664<\/h3>\n<p>\u5728 PostgreSQL \u4e2d\uff0c\u8a2d\u7f6e\u7d1a\u806f\u522a\u9664\u7684\u65b9\u5f0f\u8207 MySQL \u985e\u4f3c\u3002\u4ee5\u4e0b\u662f\u76f8\u61c9\u7684 SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id SERIAL PRIMARY KEY,\n    name VARCHAR(100) NOT NULL\n);\n\nCREATE TABLE orders (\n    id SERIAL PRIMARY KEY,\n    user_id INT REFERENCES users(id) ON DELETE CASCADE,\n    order_date TIMESTAMP\n);<\/code><\/pre>\n<p>\u9019\u88e1\u7684 `ON DELETE CASCADE` \u8868\u793a\u7576\u7528\u6236\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u76f8\u95dc\u7684\u8a02\u55ae\u4e5f\u6703\u88ab\u522a\u9664\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-sql-server-%e8%a8%ad%e7%bd%ae%e7%b4%9a%e8%81%af%e5%88%aa%e9%99%a4-bUCZankkcZ\">3. \u4f7f\u7528 SQL Server \u8a2d\u7f6e\u7d1a\u806f\u522a\u9664<\/h3>\n<p>\u5728 SQL Server \u4e2d\uff0c\u8a2d\u7f6e\u7d1a\u806f\u522a\u9664\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY IDENTITY,\n    name NVARCHAR(100) NOT NULL\n);\n\nCREATE TABLE orders (\n    id INT PRIMARY KEY IDENTITY,\n    user_id INT,\n    order_date DATETIME,\n    CONSTRAINT FK_UserOrder FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`FK_UserOrder` \u662f\u5916\u9375\u7d04\u675f\u7684\u540d\u7a31\uff0c\u7576\u7528\u6236\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u76f8\u95dc\u7684\u8a02\u55ae\u4e5f\u6703\u88ab\u522a\u9664\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-bUCZankkcZ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u8a2d\u7f6e\u7d1a\u806f\u522a\u9664\u4e4b\u524d\uff0c\u8acb\u78ba\u4fdd\u9019\u662f\u7b26\u5408\u696d\u52d9\u908f\u8f2f\u7684\u64cd\u4f5c\uff0c\u56e0\u70ba\u4e00\u65e6\u522a\u9664\uff0c\u76f8\u95dc\u6578\u64da\u5c07\u7121\u6cd5\u6062\u5fa9\u3002<\/li>\n<li>\u5728\u5927\u578b\u6578\u64da\u5eab\u4e2d\uff0c\u7d1a\u806f\u522a\u9664\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\uff0c\u7279\u5225\u662f\u7576\u6709\u5927\u91cf\u76f8\u95dc\u8a18\u9304\u6642\u3002<\/li>\n<li>\u5efa\u8b70\u5728\u9032\u884c\u7d1a\u806f\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5148\u9032\u884c\u6578\u64da\u5099\u4efd\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bUCZankkcZ\">\u7e3d\u7d50<\/h2>\n<p>\u8a2d\u7f6e\u6578\u64da\u5eab\u7d1a\u806f\u522a\u9664\u64cd\u4f5c\u662f\u4e00\u500b\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u7dad\u8b77\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u7121\u8ad6\u662f\u5728 MySQL\u3001PostgreSQL \u9084\u662f SQL Server \u4e2d\uff0c\u901a\u904e\u9069\u7576\u7684\u5916\u9375\u7d04\u675f\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u5be6\u73fe\u81ea\u52d5\u522a\u9664\u76f8\u95dc\u8a18\u9304\u7684\u529f\u80fd\u3002\u5728\u9032\u884c\u9019\u4e9b\u64cd\u4f5c\u6642\uff0c\u52d9\u5fc5\u8003\u616e\u5230\u696d\u52d9\u9700\u6c42\u548c\u6578\u64da\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u8a2d\u7f6e\u7d1a\u806f\u522a\u9664\u64cd\u4f5c\uff0c\u78ba\u4fdd\u76f8\u95dc\u6578\u64da\u5728\u4e3b\u8a18\u9304\u522a\u9664\u6642\u81ea\u52d5\u79fb\u9664\uff0c\u4fdd\u6301\u6578\u64da\u5b8c\u6574\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-175057","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175057","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=175057"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175057\/revisions"}],"predecessor-version":[{"id":175058,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175057\/revisions\/175058"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}