{"id":193451,"date":"2024-11-12T22:17:22","date_gmt":"2024-11-12T14:17:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193451\/"},"modified":"2024-11-12T22:17:23","modified_gmt":"2024-11-12T14:17:23","slug":"%e5%ad%b8%e7%bf%92mysql%e6%95%b8%e6%93%9a%e5%ba%aber%e5%9c%96%e8%a8%ad%e8%a8%88%ef%bc%8c%e5%af%a6%e4%be%8b%e8%a9%b3%e8%a7%a3-mysql%e6%95%b8%e6%93%9a%e5%ba%aber%e5%9c%96%e5%af%a6%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193451\/","title":{"rendered":"\u5b78\u7fd2MYSQL\u6578\u64da\u5eabER\u5716\u8a2d\u8a08\uff0c\u5be6\u4f8b\u8a73\u89e3 (mysql\u6578\u64da\u5eaber\u5716\u5be6\u4f8b)"},"content":{"rendered":"<h1 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id=\"%e8%a8%ad%e8%a8%88er%e5%9c%96%e7%9a%84%e6%ad%a5%e9%a9%9f-MrlppYgffd\">\u8a2d\u8a08ER\u5716\u7684\u6b65\u9a5f<\/h2>\n<p>\u8a2d\u8a08ER\u5716\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u78ba\u5b9a\u5be6\u9ad4<\/strong>\uff1a\u9996\u5148\uff0c\u8b58\u5225\u51fa\u7cfb\u7d71\u4e2d\u9700\u8981\u7684\u4e3b\u8981\u5be6\u9ad4\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u7cfb\u7d71\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u7528\u6236\u3001\u7522\u54c1\u548c\u8a02\u55ae\u7b49\u5be6\u9ad4\u3002<\/li>\n<li><strong>\u5b9a\u7fa9\u5c6c\u6027<\/strong>\uff1a\u70ba\u6bcf\u500b\u5be6\u9ad4\u5b9a\u7fa9\u5176\u5c6c\u6027\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u7528\u6236\u5be6\u9ad4\uff0c\u53ef\u4ee5\u5b9a\u7fa9\u59d3\u540d\u3001\u96fb\u5b50\u90f5\u4ef6\u548c\u5bc6\u78bc\u7b49\u5c6c\u6027\u3002<\/li>\n<li><strong>\u78ba\u5b9a\u95dc\u4fc2<\/strong>\uff1a\u78ba\u5b9a\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u3002\u4f8b\u5982\uff0c\u4e00\u500b\u7528\u6236\u53ef\u4ee5\u64c1\u6709\u591a\u500b\u8a02\u55ae\uff0c\u800c\u6bcf\u500b\u8a02\u55ae\u53ea\u80fd\u5c6c\u65bc\u4e00\u500b\u7528\u6236\u3002<\/li>\n<li><strong>\u7e6a\u88fdER\u5716<\/strong>\uff1a\u4f7f\u7528\u5de5\u5177\uff08\u5982MySQL Workbench\u3001Lucidchart\u7b49\uff09\u5c07\u4e0a\u8ff0\u4fe1\u606f\u53ef\u8996\u5316\uff0c\u7e6a\u88fd\u51faER\u5716\u3002<\/li>\n<\/ol>\n<h2 id=\"%e5%af%a6%e4%be%8b%e8%a9%b3%e8%a7%a3-MrlppYgffd\">\u5be6\u4f8b\u8a73\u89e3<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u96fb\u5b50\u5546\u52d9\u7cfb\u7d71\u7684ER\u5716\u8a2d\u8a08\u5be6\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e5%ae%9a%e5%af%a6%e9%ab%94-MrlppYgffd\">1. \u78ba\u5b9a\u5be6\u9ad4<\/h3>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u9700\u8981\u4ee5\u4e0b\u5be6\u9ad4\uff1a<\/p>\n<ul>\n<li>\u7528\u6236\uff08User\uff09<\/li>\n<li>\u7522\u54c1\uff08Product\uff09<\/li>\n<li>\u8a02\u55ae\uff08Order\uff09<\/li>\n<\/ul>\n<h3 id=\"2-%e5%ae%9a%e7%be%a9%e5%b1%ac%e6%80%a7-MrlppYgffd\">2. \u5b9a\u7fa9\u5c6c\u6027<\/h3>\n<p>\u70ba\u6bcf\u500b\u5be6\u9ad4\u5b9a\u7fa9\u5c6c\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u7528\u6236\uff08User\uff09<\/strong>\uff1a\n<ul>\n<li>\u7528\u6236ID\uff08UserID\uff09<\/li>\n<li>\u59d3\u540d\uff08Name\uff09<\/li>\n<li>\u96fb\u5b50\u90f5\u4ef6\uff08Email\uff09<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u7522\u54c1\uff08Product\uff09<\/strong>\uff1a\n<ul>\n<li>\u7522\u54c1ID\uff08ProductID\uff09<\/li>\n<li>\u7522\u54c1\u540d\u7a31\uff08ProductName\uff09<\/li>\n<li>\u50f9\u683c\uff08Price\uff09<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u8a02\u55ae\uff08Order\uff09<\/strong>\uff1a\n<ul>\n<li>\u8a02\u55aeID\uff08OrderID\uff09<\/li>\n<li>\u8a02\u55ae\u65e5\u671f\uff08OrderDate\uff09<\/li>\n<li>\u7528\u6236ID\uff08UserID\uff09<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"3-%e7%a2%ba%e5%ae%9a%e9%97%9c%e4%bf%82-MrlppYgffd\">3. \u78ba\u5b9a\u95dc\u4fc2<\/h3>\n<p>\u5728\u9019\u500b\u7cfb\u7d71\u4e2d\uff0c\u95dc\u4fc2\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u7528\u6236\u8207\u8a02\u55ae\u4e4b\u9593\u662f\u4e00\u5c0d\u591a\u7684\u95dc\u4fc2\uff08\u6bcf\u500b\u7528\u6236\u53ef\u4ee5\u6709\u591a\u500b\u8a02\u55ae\uff09\u3002<\/li>\n<li>\u8a02\u55ae\u8207\u7522\u54c1\u4e4b\u9593\u662f\u591a\u5c0d\u591a\u7684\u95dc\u4fc2\uff08\u6bcf\u500b\u8a02\u55ae\u53ef\u4ee5\u5305\u542b\u591a\u500b\u7522\u54c1\uff0c\u6bcf\u500b\u7522\u54c1\u4e5f\u53ef\u4ee5\u51fa\u73fe\u5728\u591a\u500b\u8a02\u55ae\u4e2d\uff09\u3002<\/li>\n<\/ul>\n<h3 id=\"4-%e7%b9%aa%e8%a3%bder%e5%9c%96-MrlppYgffd\">4. \u7e6a\u88fdER\u5716<\/h3>\n<p>\u6839\u64da\u4e0a\u8ff0\u4fe1\u606f\uff0c\u6211\u5011\u53ef\u4ee5\u7e6a\u88fd\u51fa\u4ee5\u4e0bER\u5716\uff1a<\/p>\n<pre>\n[User] ---- [Order]\n[Order] ---- [Product]\n<\/pre>\n<h2 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href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2MYSQL\u6578\u64da\u5eabER\u5716\u8a2d\u8a08\uff0c\u901a\u904e\u5be6\u4f8b\u8a73\u89e3\u638c\u63e1\u6578\u64da\u5eab\u7d50\u69cb\u8207\u95dc\u4fc2\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790\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-193451","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193451","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=193451"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193451\/revisions"}],"predecessor-version":[{"id":193452,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193451\/revisions\/193452"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}