{"id":6758,"date":"2026-02-05T23:04:30","date_gmt":"2026-02-05T15:04:30","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/cn\/building-an-online-bookstore-data-modeling-with-erd-and-dbml\/"},"modified":"2026-02-05T23:04:30","modified_gmt":"2026-02-05T15:04:30","slug":"building-an-online-bookstore-data-modeling-with-erd-and-dbml","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/cn\/building-an-online-bookstore-data-modeling-with-erd-and-dbml\/","title":{"rendered":"\u6784\u5efa\u5728\u7ebf\u4e66\u5e97\uff1a\u4f7f\u7528ERD\u548cDBML\u8fdb\u884c\u6570\u636e\u5efa\u6a21"},"content":{"rendered":"<p>\u6570\u636e\u5efa\u6a21\u662f\u521b\u5efa\u6570\u636e\u5e93\u4e2d\u6570\u636e\u53ca\u5176\u5173\u7cfb\u7684\u53ef\u89c6\u5316\u8868\u793a\u7684\u8fc7\u7a0b\u3002\u6570\u636e\u5efa\u6a21\u4e2d\u6700\u5e38\u7528\u7684\u5de5\u5177\u4e4b\u4e00\u662f\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\uff0c\u5b83\u4f7f\u7528\u56fe\u5f62\u7b26\u53f7\u6765\u8868\u793a\u5b9e\u4f53\u3001\u5c5e\u6027\u548c\u5173\u7cfb\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u4f7f\u7528ERD\u8fdb\u884c\u6570\u636e\u5efa\u6a21\u7684\u8fc7\u7a0b\uff0c\u5e76\u63d0\u4f9b\u5176\u5728\u5b9e\u9645\u573a\u666f\u4e2d\u7684\u5e94\u7528\u793a\u4f8b\u3002<\/p>\n<h2>\u4ec0\u4e48\u662f\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\uff1f<\/h2>\n<p>ERD\u662f\u5b9e\u4f53\u3001\u5176\u5c5e\u6027\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u5173\u7cfb\u7684\u56fe\u5f62\u5316\u8868\u793a\u3002\u5b9e\u4f53\u662f\u6570\u636e\u5e93\u4e2d\u8868\u793a\u7684\u5bf9\u8c61\u6216\u6982\u5ff5\uff0c\u4f8b\u5982\u5ba2\u6237\u3001\u8ba2\u5355\u6216\u4ea7\u54c1\u3002\u5c5e\u6027\u662f\u5b9e\u4f53\u7684\u7279\u5f81\u6216\u5c5e\u6027\uff0c\u4f8b\u5982\u59d3\u540d\u3001\u5730\u5740\u6216\u4ef7\u683c\u3002\u5173\u7cfb\u662f\u5b9e\u4f53\u4e4b\u95f4\u7684\u5173\u8054\uff0c\u4f8b\u5982\u5ba2\u6237\u4e0b\u8ba2\u5355\u3002<\/p>\n<h3>ERD\u901a\u5e38\u7531\u4ee5\u4e0b\u7ec4\u4ef6\u6784\u6210\uff1a<\/h3>\n<ol>\n<li>\u5b9e\u4f53\uff1a\u7528\u77e9\u5f62\u8868\u793a\uff0c\u5b9e\u4f53\u540d\u79f0\u5199\u5728\u77e9\u5f62\u5185\u90e8\u3002<\/li>\n<li>\u5c5e\u6027\uff1a\u7528\u692d\u5706\u8868\u793a\uff0c\u901a\u8fc7\u4e00\u6761\u7ebf\u8fde\u63a5\u5230\u6240\u5c5e\u7684\u5b9e\u4f53\u3002<\/li>\n<li>\u5173\u7cfb\uff1a\u7528\u83f1\u5f62\u8868\u793a\uff0c\u8fde\u63a5\u5404\u4e2a\u5b9e\u4f53\u3002<\/li>\n<\/ol>\n<p>\u5b9e\u4f53\u4e4b\u95f4\u53ef\u80fd\u5b58\u5728\u7684\u4e09\u79cd\u5173\u7cfb\u7c7b\u578b\u662f\uff1a<\/p>\n<ol>\n<li>\u4e00\u5bf9\u4e00\uff081:1\uff09\uff1a\u4e00\u4e2a\u5b9e\u4f53\u7684\u4e00\u4e2a\u5b9e\u4f8b\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u7684\u4e00\u4e2a\u5b9e\u4f8b\u76f8\u5173\u8054\u3002<\/li>\n<li>\u4e00\u5bf9\u591a\uff081:N\uff09\uff1a\u4e00\u4e2a\u5b9e\u4f53\u7684\u4e00\u4e2a\u5b9e\u4f8b\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u7684\u591a\u4e2a\u5b9e\u4f8b\u76f8\u5173\u8054\u3002<\/li>\n<li>\u591a\u5bf9\u591a\uff08N:M\uff09\uff1a\u4e00\u4e2a\u5b9e\u4f53\u7684\u591a\u4e2a\u5b9e\u4f8b\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u7684\u591a\u4e2a\u5b9e\u4f8b\u76f8\u5173\u8054\u3002<\/li>\n<\/ol>\n<h2>\u4f7f\u7528ERD\u8fdb\u884c\u6570\u636e\u5efa\u6a21\u7684\u793a\u4f8b<\/h2>\n<p>\u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u5728\u7ebf\u4e66\u5e97\u7684\u4f8b\u5b50\uff0c\u8be5\u4e66\u5e97\u5411\u5ba2\u6237\u9500\u552e\u4e66\u7c4d\u3002\u8be5\u4e66\u5e97\u62e5\u6709\u591a\u4e2a\u56fe\u4e66\u7c7b\u522b\uff0c\u4ee5\u53ca\u5927\u91cf\u53ef\u4ee5\u4e0b\u8ba2\u5355\u7684\u5ba2\u6237\u3002\u4e3a\u4e86\u4f7f\u7528ERD\u5bf9\u8fd9\u4e2a\u7cfb\u7edf\u8fdb\u884c\u5efa\u6a21\uff0c\u6211\u4eec\u53ef\u4ee5\u4ece\u8bc6\u522b\u6d89\u53ca\u7684\u5b9e\u4f53\u3001\u5c5e\u6027\u548c\u5173\u7cfb\u5f00\u59cb\u3002<\/p>\n<p><strong>\u5b9e\u4f53\uff1a<\/strong><\/p>\n<ol>\n<li>\u56fe\u4e66\uff1a\u8868\u793a\u4e66\u5e97\u4e2d\u7684\u4e66\u7c4d\u3002\u5305\u542b\u6807\u9898\u3001\u4f5c\u8005\u3001ISBN\u548c\u4ef7\u683c\u7b49\u5c5e\u6027\u3002<\/li>\n<li>\u7c7b\u522b\uff1a\u8868\u793a\u4e66\u5e97\u4e2d\u7684\u4e66\u7c4d\u7c7b\u522b\u6216\u7c7b\u578b\u3002\u5305\u542b\u540d\u79f0\u548c\u63cf\u8ff0\u7b49\u5c5e\u6027\u3002<\/li>\n<li>\u5ba2\u6237\uff1a\u8868\u793a\u5df2\u6ce8\u518c\u4e66\u5e97\u7684\u5ba2\u6237\u3002\u5305\u542b\u59d3\u540d\u3001\u5730\u5740\u548c\u7535\u5b50\u90ae\u4ef6\u7b49\u5c5e\u6027\u3002<\/li>\n<li>\u8ba2\u5355\uff1a\u8868\u793a\u5ba2\u6237\u4e0b\u7684\u8ba2\u5355\u3002\u5305\u542b\u8ba2\u5355\u65e5\u671f\u548c\u603b\u4ef7\u7b49\u5c5e\u6027\u3002\u8fd8\u5305\u542b\u5bf9\u5ba2\u6237\u5b9e\u4f53\u7684\u5916\u952e\u5f15\u7528\uff0c\u4ee5\u8868\u660e\u662f\u54ea\u4e2a\u5ba2\u6237\u4e0b\u7684\u8ba2\u5355\u3002<\/li>\n<li>\u56fe\u4e66-\u7c7b\u522b\uff1a\u8868\u793a\u56fe\u4e66\u4e0e\u7c7b\u522b\u4e4b\u95f4\u7684\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u5305\u542b\u5bf9\u56fe\u4e66\u548c\u7c7b\u522b\u5b9e\u4f53\u7684\u5916\u952e\u5f15\u7528\u3002<\/li>\n<li>\u8ba2\u5355-\u56fe\u4e66\uff1a\u8868\u793a\u8ba2\u5355\u4e0e\u56fe\u4e66\u4e4b\u95f4\u7684\u591a\u5bf9\u5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fetchpriority=\"high\" alt=\"ERD for bookstore\" class=\"alignnone size-full wp-image-956\" decoding=\"async\" fetchpriority=\"high\" height=\"418\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/ERD-for-bookstore.png\" width=\"663\"\/><\/p>\n<p>\u5728\u8fd9\u4e2aERD\u56fe\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u56fe\u4e66\u5b9e\u4f53\u4e0e\u7c7b\u522b\u5b9e\u4f53\u4e4b\u95f4\u5b58\u5728\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u8fd9\u610f\u5473\u7740\u4e00\u672c\u4e66\u53ef\u4ee5\u5c5e\u4e8e\u591a\u4e2a\u7c7b\u522b\uff0c\u800c\u4e00\u4e2a\u7c7b\u522b\u4e5f\u53ef\u4ee5\u5305\u542b\u591a\u672c\u4e66\u3002\u5ba2\u6237\u5b9e\u4f53\u4e0e\u8ba2\u5355\u5b9e\u4f53\u4e4b\u95f4\u5b58\u5728\u4e00\u5bf9\u591a\u5173\u7cfb\uff0c\u8fd9\u610f\u5473\u7740\u4e00\u4e2a\u5ba2\u6237\u53ef\u4ee5\u4e0b\u591a\u4e2a\u8ba2\u5355\uff0c\u4f46\u6bcf\u4e2a\u8ba2\u5355\u53ea\u5c5e\u4e8e\u4e00\u4e2a\u5ba2\u6237\u3002\u6700\u540e\uff0c\u8ba2\u5355\u5b9e\u4f53\u4e0e\u56fe\u4e66\u5b9e\u4f53\u4e4b\u95f4\u5b58\u5728\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u8fd9\u610f\u5473\u7740\u4e00\u4e2a\u8ba2\u5355\u53ef\u4ee5\u5305\u542b\u591a\u672c\u4e66\uff0c\u800c\u4e00\u672c\u4e66\u4e5f\u53ef\u4ee5\u51fa\u73b0\u5728\u591a\u4e2a\u8ba2\u5355\u4e2d\u3002<\/p>\n<h3>\u4f7f\u7528Visual Paradigm\u751f\u6210\u6570\u636e\u5e93\u6a21\u5f0fSQL\u4ee3\u7801<\/h3>\n<blockquote>\n<p>\u8868 book {<br \/>\nid int [\u4e3b\u952e\uff0c\u81ea\u589e]<br \/>\ntitle varchar<br \/>\nauthor varchar<br \/>\nisbn varchar<br \/>\nprice float<br \/>\n}<\/p>\n<p>\u8868 category {<br \/>\nid int [\u4e3b\u952e\uff0c\u81ea\u589e]<br \/>\nname varchar<br \/>\ndescription varchar<br \/>\n}<\/p>\n<p>\u8868 customer {<br \/>\nid int [\u4e3b\u952e\uff0c\u81ea\u589e]<br \/>\nname varchar<br \/>\naddress varchar<br \/>\nemail varchar<br \/>\n}<\/p>\n<p>\u8868 order {<br \/>\nid int [\u4e3b\u952e\uff0c\u81ea\u589e]<br \/>\norder_date datetime<br \/>\ntotal_price float<br \/>\ncustomer_id int [\u5f15\u7528: &gt; customer.id]<br \/>\n}<\/p>\n<p>\u8868 book_category {<br \/>\nbook_id int [\u5f15\u7528: &gt; book.id]<br \/>\ncategory_id int [\u5f15\u7528: &gt; category.id]<br \/>\n}<\/p>\n<p>\u8868 order_book {<br \/>\norder_id int [\u5f15\u7528: &gt; order.id]<br \/>\nbook_id int [\u5f15\u7528: &gt; book.id]<br \/>\n}<\/p>\n<\/blockquote>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u4f7f\u7528\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\u8fdb\u884c\u6570\u636e\u5efa\u6a21\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u8fc7\u7a0b\uff0c\u5b83\u5e2e\u52a9\u6211\u4eec\u53ef\u89c6\u5316\u548c\u7406\u89e3\u6570\u636e\u5e93\u4e2d\u5b9e\u4f53\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u901a\u8fc7\u8bc6\u522b\u5b9e\u4f53\u3001\u5c5e\u6027\u548c\u5173\u7cfb\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u6e05\u6670\u7b80\u6d01\u5730\u8868\u793a\u6570\u636e\u53ca\u5176\u7ed3\u6784\u7684ERD\u3002\u8fd9\u4f7f\u6211\u4eec\u80fd\u591f\u8bbe\u8ba1\u548c\u7ef4\u62a4\u9ad8\u6548\u4e14\u6709\u6548\u7684\u6570\u636e\u5e93\uff0c\u4ee5\u6ee1\u8db3\u7ec4\u7ec7\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u5efa\u6a21\u662f\u521b\u5efa\u6570\u636e\u5e93\u4e2d\u6570\u636e\u53ca\u5176\u5173\u7cfb\u7684\u53ef\u89c6\u5316\u8868\u793a\u7684\u8fc7\u7a0b\u3002\u6570\u636e\u5efa\u6a21\u4e2d\u6700\u5e38\u7528\u7684\u5de5\u5177\u4e4b\u4e00\u662f\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\uff0c\u5b83\u4f7f\u7528\u56fe\u5f62\u7b26\u53f7\u6765\u8868\u793a\u5b9e\u4f53\u3001\u5c5e\u6027\u548c\u5173\u7cfb\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u4f7f\u7528ERD\u8fdb\u884c\u6570\u636e\u5efa\u6a21\u7684\u8fc7\u7a0b\uff0c\u5e76\u63d0\u4f9b\u5176\u5728\u5b9e\u9645\u573a\u666f\u4e2d\u7684\u5e94\u7528\u793a\u4f8b\u3002 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