{"id":1983,"date":"2026-03-21T16:22:16","date_gmt":"2026-03-21T16:22:16","guid":{"rendered":"https:\/\/www.go-diagram.com\/cn\/erd-practice-problems-realistic-scenarios\/"},"modified":"2026-03-21T16:22:16","modified_gmt":"2026-03-21T16:22:16","slug":"erd-practice-problems-realistic-scenarios","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/cn\/erd-practice-problems-realistic-scenarios\/","title":{"rendered":"ERD\u7ec3\u4e60\u9898\uff1a\u901a\u8fc7\u771f\u5b9e\u573a\u666f\u5efa\u7acb\u4fe1\u5fc3"},"content":{"rendered":"<p>\u8bbe\u8ba1\u4e00\u4e2a\u5065\u58ee\u7684\u6570\u636e\u5e93\u4e0d\u4ec5\u4ec5\u9700\u8981\u7406\u89e3\u8bed\u6cd5\u3002\u5b83\u8fd8\u9700\u8981\u5bf9\u6570\u636e\u5728\u73b0\u5b9e\u7cfb\u7edf\u4e2d\u5982\u4f55\u4ea4\u4e92\u6709\u4e00\u4e2a\u6e05\u6670\u7684\u5fc3\u7406\u6a21\u578b\u3002\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\u5c31\u662f\u8fd9\u79cd\u7ed3\u6784\u7684\u84dd\u56fe\u3002\u5982\u679c\u6ca1\u6709\u7ec3\u4e60\uff0c\u89c4\u8303\u5316\u3001\u57fa\u6570\u548c\u5916\u952e\u7b49\u7406\u8bba\u6982\u5ff5\u4ecd\u7136\u505c\u7559\u5728\u62bd\u8c61\u5c42\u9762\u3002\u8981\u771f\u6b63\u638c\u63e1\u6570\u636e\u5e93\u5efa\u6a21\uff0c\u4f60\u5fc5\u987b\u53c2\u4e0e\u90a3\u4e9b\u6a21\u62df\u5b9e\u9645\u4e1a\u52a1\u903b\u8f91\u7684\u5b9e\u8df5\u95ee\u9898\u3002<\/p>\n<p>\u672c\u6307\u5357\u4e13\u6ce8\u4e8e\u901a\u8fc7\u5177\u4f53\u4e14\u771f\u5b9e\u7684\u573a\u666f\u5e94\u7528ERD\u539f\u5219\u3002\u901a\u8fc7\u89e3\u51b3\u8fd9\u4e9b\u793a\u4f8b\uff0c\u4f60\u5c06\u589e\u5f3a\u8bc6\u522b\u5b9e\u4f53\u3001\u5b9a\u4e49\u5173\u7cfb\u4ee5\u53ca\u907f\u514d\u5e38\u89c1\u7ed3\u6784\u9519\u8bef\u7684\u80fd\u529b\u3002\u76ee\u6807\u662f\u5efa\u7acb\u4e00\u4e2a\u53ef\u9760\u7684\u6d41\u7a0b\uff0c\u5c06\u590d\u6742\u7684\u9700\u6c42\u8f6c\u5316\u4e3a\u6e05\u6670\u3001\u9ad8\u6548\u7684\u6570\u636e\u5e93\u6a21\u578b\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Child's drawing style infographic teaching ERD practice problems for database design, featuring colorful crayon illustrations of core components (entities, attributes, cardinality types), three realistic scenarios (e-commerce shopping cart, hospital management, university portal), common pitfalls with warning icons, step-by-step workflow checklist, and advanced concepts like weak entities and inheritance, all presented in playful hand-drawn aesthetic with bright colors and simple labels for intuitive learning\" decoding=\"async\" src=\"https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/03\/erd-practice-problems-infographic-childs-drawing-style.jpg\"\/><\/figure>\n<\/div>\n<h2>\u7406\u89e3\u6838\u5fc3\u7ec4\u4ef6 \ud83e\uddf1<\/h2>\n<p>\u5728\u6df1\u5165\u573a\u666f\u4e4b\u524d\uff0c\u5fc5\u987b\u56de\u987eERD\u7684\u57fa\u672c\u6784\u6210\u8981\u7d20\u3002\u624e\u5b9e\u7684\u57fa\u7840\u80fd\u786e\u4fdd\u4f60\u5728\u9762\u5bf9\u590d\u6742\u9700\u6c42\u65f6\uff0c\u65e0\u9700\u91cd\u65b0\u5b66\u4e60\u57fa\u7840\u77e5\u8bc6\u3002<\/p>\n<h3>1. \u5b9e\u4f53\u548c\u5c5e\u6027<\/h3>\n<ul>\n<li><strong>\u5b9e\u4f53\uff1a<\/strong> \u5b83\u4eec\u4ee3\u8868\u7cfb\u7edf\u4e2d\u4e0d\u540c\u7684\u5bf9\u8c61\u6216\u6982\u5ff5\u3002\u4f8b\u5982\uff1a<em>\u5ba2\u6237<\/em>, <em>\u4ea7\u54c1<\/em>\uff0c\u6216<em>\u5458\u5de5<\/em>.<\/li>\n<li><strong>\u5c5e\u6027\uff1a<\/strong> \u5b83\u4eec\u63cf\u8ff0\u5b9e\u4f53\u7684\u5c5e\u6027\u3002\u5bf9\u4e8e\u4e00\u4e2a<em>\u5ba2\u6237<\/em>\uff0c\u5c5e\u6027\u53ef\u80fd\u5305\u62ec<em>\u5ba2\u6237ID<\/em>, <em>\u59d3\u540d<\/em>\uff0c\u4ee5\u53ca<em>\u7535\u5b50\u90ae\u7bb1\u5730\u5740<\/em>.<\/li>\n<li><strong>\u4e3b\u952e\uff1a<\/strong> \u6bcf\u4e2a\u5b9e\u4f53\u90fd\u9700\u8981\u4e00\u4e2a\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u4ee5\u533a\u5206\u4e00\u4e2a\u8bb0\u5f55\u4e0e\u53e6\u4e00\u4e2a\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n<h3>2. \u5173\u7cfb\u4e0e\u57fa\u6570<\/h3>\n<p>\u5b9e\u4f53\u4e4b\u95f4\u7684\u8fde\u63a5\u5b9a\u4e49\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\u3002\u57fa\u6570\u6307\u660e\u4e86\u4e00\u4e2a\u5b9e\u4f53\u5b9e\u4f8b\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u5b9e\u4f8b\u4e4b\u95f4\u7684\u5173\u8054\u6570\u91cf\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u57fa\u6570\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<th>\u793a\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4e00\u5bf9\u4e00\uff081:1\uff09<\/td>\n<td>\u4e00\u4e2a\u5b9e\u4f8b\u4ec5\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u7684\u4e00\u4e2a\u5b9e\u4f8b\u76f8\u5173\u8054\u3002<\/td>\n<td>\u4e00\u4e2a <em>\u5458\u5de5<\/em> \u62e5\u6709\u4e00\u4e2a <em>\u8eab\u4efd\u8bc1<\/em>.<\/td>\n<\/tr>\n<tr>\n<td>\u4e00\u5bf9\u591a\uff081:N\uff09<\/td>\n<td>\u4e00\u4e2a\u5b9e\u4f8b\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u7684\u591a\u4e2a\u5b9e\u4f8b\u76f8\u5173\u8054\u3002<\/td>\n<td>\u4e00\u4e2a <em>\u90e8\u95e8<\/em> \u62e5\u6709\u591a\u4e2a <em>\u5458\u5de5<\/em>.<\/td>\n<\/tr>\n<tr>\n<td>\u591a\u5bf9\u591a\uff08M:N\uff09<\/td>\n<td>\u591a\u4e2a\u5b9e\u4f8b\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u7684\u591a\u4e2a\u5b9e\u4f8b\u76f8\u5173\u8054\u3002<\/td>\n<td>\u591a\u4e2a <em>\u5b66\u751f<\/em> \u6ce8\u518c\u4e86\u591a\u4e2a <em>\u8bfe\u7a0b<\/em>.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u573a\u666f1\uff1a\u7535\u5b50\u5546\u52a1\u5e73\u53f0 \ud83d\uded2<\/h2>\n<p>\u5728\u7ebf\u96f6\u552e\u7cfb\u7edf\u6d89\u53ca\u590d\u6742\u7684\u4ea4\u6613\u3001\u5e93\u5b58\u7ba1\u7406\u548c\u7528\u6237\u8d26\u6237\u3002\u6b64\u573a\u666f\u6d4b\u8bd5\u60a8\u5904\u7406\u8fde\u63a5\u8868\u548c\u72b6\u6001\u8ddf\u8e2a\u7684\u80fd\u529b\u3002<\/p>\n<h3>\u9700\u6c42\u5206\u6790<\/h3>\n<ul>\n<li>\u5ba2\u6237\u53ef\u4ee5\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u4e0b\u591a\u4e2a\u8ba2\u5355\u3002<\/li>\n<li>\u4e00\u4e2a\u8ba2\u5355\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u4ea7\u54c1\u3002<\/li>\n<li>\u4e00\u4e2a\u4ea7\u54c1\u53ef\u4ee5\u5c5e\u4e8e\u591a\u4e2a\u4e0d\u540c\u7684\u8ba2\u5355\u3002<\/li>\n<li>\u6bcf\u4e2a\u8ba2\u5355\u5fc5\u987b\u8ddf\u8e2a\u7279\u5b9a\u7684\u72b6\u6001\uff08\u4f8b\u5982\uff1a\u5f85\u5904\u7406\u3001\u5df2\u53d1\u8d27\uff09\u3002<\/li>\n<li>\u4ea7\u54c1\u5c5e\u4e8e\u7279\u5b9a\u7684\u7c7b\u522b\u3002<\/li>\n<\/ul>\n<h3>\u5efa\u6a21\u6b65\u9aa4<\/h3>\n<ol>\n<li><strong>\u8bc6\u522b\u5b9e\u4f53\uff1a<\/strong> \u5ba2\u6237\u3001\u8ba2\u5355\u3001\u4ea7\u54c1\u3001\u7c7b\u522b\u3002<\/li>\n<li><strong>\u5b9a\u4e49\u5c5e\u6027\uff1a<\/strong>\n<ul>\n<li><em>\u5ba2\u6237\uff1a<\/em> \u5ba2\u6237ID\u3001\u540d\u5b57\u3001\u59d3\u6c0f\u3001\u7535\u5b50\u90ae\u4ef6\u3002<\/li>\n<li><em>\u8ba2\u5355\uff1a<\/em> \u8ba2\u5355ID\u3001\u8ba2\u5355\u65e5\u671f\u3001\u72b6\u6001\u3001\u914d\u9001\u5730\u5740\u3002<\/li>\n<li><em>\u4ea7\u54c1\uff1a<\/em> \u4ea7\u54c1ID\u3001\u540d\u79f0\u3001\u4ef7\u683c\u3001\u5e93\u5b58\u6570\u91cf\u3002<\/li>\n<li><em>\u7c7b\u522b\uff1a<\/em> \u7c7b\u522bID\u3001\u7c7b\u522b\u540d\u79f0\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u786e\u5b9a\u5173\u7cfb\uff1a<\/strong>\n<ul>\n<li><em>\u5ba2\u6237\u5230\u8ba2\u5355\uff1a<\/em> \u4e00\u5bf9\u591a\u3002\u4e00\u4e2a\u5ba2\u6237\u751f\u6210\u591a\u4e2a\u8ba2\u5355\u3002<\/li>\n<li><em>\u8ba2\u5355\u5230\u4ea7\u54c1\uff1a<\/em> \u591a\u5bf9\u591a\u3002\u4e00\u4e2a\u8ba2\u5355\u5305\u542b\u591a\u4e2a\u4ea7\u54c1\uff0c\u800c\u4e00\u4e2a\u4ea7\u54c1\u51fa\u73b0\u5728\u591a\u4e2a\u8ba2\u5355\u4e2d\u3002\u8fd9\u9700\u8981\u4e00\u4e2a\u5173\u8054\u8868\u3002<\/li>\n<li><em>\u4ea7\u54c1\u5230\u7c7b\u522b\uff1a<\/em> \u591a\u5bf9\u4e00\u3002\u591a\u4e2a\u4ea7\u54c1\u5c5e\u4e8e\u4e00\u4e2a\u7c7b\u522b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>\u4f18\u5316\u8bbe\u8ba1<\/h3>\n<p>\u5bf9\u4e8e\u8ba2\u5355\u548c\u4ea7\u54c1\u4e4b\u95f4\u7684\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u4f60\u5fc5\u987b\u521b\u5efa\u4e00\u4e2a\u901a\u5e38\u79f0\u4e3a<em>\u8ba2\u5355\u9879<\/em>\u7684\u5173\u8054\u8868\u3002\u8be5\u8868\u6253\u7834\u4e86\u76f4\u63a5\u8fde\u63a5\uff0c\u5e76\u5141\u8bb8\u4f60\u5b58\u50a8\u6709\u5173\u4ea4\u6613\u884c\u7684\u5177\u4f53\u6570\u636e\uff0c\u4f8b\u5982<em>\u6570\u91cf<\/em>\u4ee5\u53ca<em>\u9500\u552e\u65f6\u7684\u5355\u4ef7<\/em>.<\/p>\n<ul>\n<li><strong>\u8ba2\u5355\u9879\u5c5e\u6027\uff1a<\/strong> \u8ba2\u5355\u9879ID\u3001\u8ba2\u5355ID\uff08\u5916\u952e\uff09\u3001\u4ea7\u54c1ID\uff08\u5916\u952e\uff09\u3001\u6570\u91cf\u3001\u5355\u4ef7\u3002<\/li>\n<li><strong>\u89c4\u8303\u5316\u68c0\u67e5\uff1a<\/strong> \u786e\u4fdd <em>\u5355\u4ef7<\/em> \u5b58\u50a8\u5728\u8fd9\u91cc\uff0c\u800c\u4e0d\u662f\u5728 <em>\u4ea7\u54c1<\/em> \u8868\u4e2d\uff0c\u56e0\u4e3a\u4ef7\u683c\u4f1a\u968f\u65f6\u95f4\u53d8\u5316\u3002<\/li>\n<\/ul>\n<h2>\u573a\u666f 2\uff1a\u533b\u9662\u7ba1\u7406\u7cfb\u7edf \ud83c\udfe5<\/h2>\n<p>\u533b\u7597\u6570\u636e\u5e93\u7531\u4e8e\u6570\u636e\u7684\u654f\u611f\u6027\uff0c\u9700\u8981\u9ad8\u5ea6\u7684\u51c6\u786e\u6027\u3002\u6b64\u573a\u666f\u5f3a\u8c03\u4e25\u683c\u7684\u6570\u636e\u5b8c\u6574\u6027\u548c\u5c42\u7ea7\u5173\u7cfb\u3002<\/p>\n<h3>\u9700\u6c42\u5206\u6790<\/h3>\n<ul>\n<li>\u533b\u751f\u4e13\u7cbe\u4e8e\u7279\u5b9a\u79d1\u5ba4\u3002<\/li>\n<li>\u60a3\u8005\u9884\u7ea6\u770b\u533b\u751f\u3002<\/li>\n<li>\u4e00\u540d\u533b\u751f\u53ef\u4ee5\u6709\u591a\u4e2a\u60a3\u8005\uff0c\u800c\u4e00\u540d\u60a3\u8005\u4e5f\u53ef\u4ee5\u770b\u591a\u4f4d\u533b\u751f\u3002<\/li>\n<li>\u5904\u65b9\u5728\u5c31\u8bca\u671f\u95f4\u5f00\u5177\u3002<\/li>\n<li>\u6bcf\u4f4d\u60a3\u8005\u90fd\u6709\u552f\u4e00\u7684\u75c5\u5386\u3002<\/li>\n<\/ul>\n<h3>\u5efa\u6a21\u6b65\u9aa4<\/h3>\n<ol>\n<li><strong>\u8bc6\u522b\u5b9e\u4f53\uff1a<\/strong> \u533b\u751f\u3001\u60a3\u8005\u3001\u9884\u7ea6\u3001\u5904\u65b9\u3001\u79d1\u5ba4\u3002<\/li>\n<li><strong>\u5b9a\u4e49\u5c5e\u6027\uff1a<\/strong>\n<ul>\n<li><em>\u533b\u751f\uff1a<\/em> \u533b\u751fID\u3001\u59d3\u540d\u3001\u4e13\u957f\u3001\u6267\u4e1a\u8bc1\u4e66\u53f7\u3002<\/li>\n<li><em>\u79d1\u5ba4\uff1a<\/em> \u79d1\u5ba4ID\u3001\u79d1\u5ba4\u540d\u79f0\u3001\u79d1\u4e3b\u4efbID\u3002<\/li>\n<li><em>\u9884\u7ea6\uff1a<\/em> \u9884\u7ea6ID\u3001\u65e5\u671f\u65f6\u95f4\u3001\u8bca\u65ad\u5907\u6ce8\u3002<\/li>\n<li><em>\u5904\u65b9\uff1a<\/em> \u5904\u65b9ID\u3001\u836f\u54c1\u540d\u79f0\u3001\u5242\u91cf\u3001\u7597\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u786e\u5b9a\u5173\u7cfb\uff1a<\/strong>\n<ul>\n<li><em>\u79d1\u5ba4\u5230\u533b\u751f\uff1a<\/em> \u4e00\u5bf9\u591a\u3002\u4e00\u4e2a\u79d1\u5ba4\u96c7\u4f63\u591a\u540d\u533b\u751f\u3002<\/li>\n<li><em>\u533b\u751f\u5230\u9884\u7ea6\uff1a<\/em> \u4e00\u5bf9\u591a\u3002\u4e00\u540d\u533b\u751f\u8fdb\u884c\u591a\u6b21\u9884\u7ea6\u3002<\/li>\n<li><em>\u60a3\u8005\u5230\u9884\u7ea6\uff1a<\/em> \u4e00\u5bf9\u591a\u3002\u4e00\u540d\u60a3\u8005\u4f1a\u53c2\u52a0\u591a\u6b21\u9884\u7ea6\u3002<\/li>\n<li><em>\u9884\u7ea6\u5230\u5904\u65b9\uff1a<\/em> \u4e00\u5bf9\u591a\u3002\u4e00\u6b21\u9884\u7ea6\u53ef\u80fd\u5bfc\u81f4\u591a\u4e2a\u5904\u65b9\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>\u5904\u7406\u590d\u6742\u7ea6\u675f<\/h3>\n<p>\u5728\u6b64\u573a\u666f\u4e2d\uff0c\u6570\u636e\u5b8c\u6574\u6027\u81f3\u5173\u91cd\u8981\u3002\u60a8\u5fc5\u987b\u786e\u4fdd\u5904\u65b9\u4e0d\u80fd\u5728\u6ca1\u6709\u5173\u8054\u9884\u7ea6\u7684\u60c5\u51b5\u4e0b\u5b58\u5728\u3002\u8fd9\u901a\u8fc7\u5916\u952e\u7ea6\u675f\u6765\u5f3a\u5236\u6267\u884c\u3002<\/p>\n<ul>\n<li><strong>\u81ea\u5f15\u7528\u5173\u7cfb\uff1a<\/strong> \u4e00\u4e2a <em>\u533b\u751f<\/em> \u5b9e\u4f53\u53ef\u80fd\u9700\u8981\u94fe\u63a5\u5230\u4e00\u4e2a <em>\u4e3b\u4efb\u533b\u751f<\/em> \u540c\u4e00\u8868\u4e2d\u3002\u8fd9\u662f\u4e00\u4e2a\u4e00\u5bf9\u4e00\u5173\u7cfb\uff0c\u5176\u4e2d <em>\u4e3b\u4efb\u533b\u751fID<\/em> \u6307\u5411 <em>\u533b\u751fID<\/em>.<\/li>\n<li><strong>\u65f6\u95f4\u6570\u636e\uff1a<\/strong> \u9884\u7ea6\u5177\u6709\u7279\u5b9a\u65e5\u671f\u3002\u786e\u4fddDateTime\u5b57\u6bb5\u4ee5\u6807\u51c6\u683c\u5f0f\u5b58\u50a8\uff0c\u4ee5\u4fbf\u8fdb\u884c\u8c03\u5ea6\u67e5\u8be2\u3002<\/li>\n<\/ul>\n<h2>\u573a\u666f3\uff1a\u5927\u5b66\u5b66\u751f\u95e8\u6237 \ud83c\udf93<\/h2>\n<p>\u5b66\u672f\u7cfb\u7edf\u6d89\u53ca\u590d\u6742\u7684\u591a\u5bf9\u591a\u5173\u7cfb\u548c\u6761\u4ef6\u903b\u8f91\u3002\u6b64\u573a\u666f\u4e13\u6ce8\u4e8e\u7ba1\u7406\u6ce8\u518c\u548c\u5148\u4fee\u8bfe\u7a0b\u3002<\/p>\n<h3>\u9700\u6c42\u5206\u6790<\/h3>\n<ul>\n<li>\u5b66\u751f\u6ce8\u518c\u591a\u95e8\u8bfe\u7a0b\u3002<\/li>\n<li>\u6bcf\u95e8\u8bfe\u7a0b\u6709\u591a\u4e2a\u6388\u8bfe\u6559\u5e08\u3002<\/li>\n<li>\u4e00\u95e8\u8bfe\u7a0b\u53ef\u4ee5\u5728\u591a\u4e2a\u5b66\u671f\u5f00\u8bbe\u3002<\/li>\n<li>\u67d0\u4e9b\u8bfe\u7a0b\u6709\u5148\u4fee\u8981\u6c42\u3002<\/li>\n<li>\u6210\u7ee9\u6309\u5b66\u751f\u548c\u8bfe\u7a0b\u5206\u522b\u8bc4\u5b9a\u3002<\/li>\n<\/ul>\n<h3>\u5efa\u6a21\u6b65\u9aa4<\/h3>\n<ol>\n<li><strong>\u8bc6\u522b\u5b9e\u4f53\uff1a<\/strong> \u5b66\u751f\u3001\u8bfe\u7a0b\u3001\u6559\u5e08\u3001\u5b66\u671f\u3001\u6ce8\u518c\u3002<\/li>\n<li><strong>\u5b9a\u4e49\u5c5e\u6027\uff1a<\/strong>\n<ul>\n<li><em>\u5b66\u751f\uff1a<\/em> \u5b66\u751fID\uff0cGPA\uff0c\u4e13\u4e1a\u3002<\/li>\n<li><em>\u8bfe\u7a0b\uff1a<\/em> \u8bfe\u7a0b\u4ee3\u7801\uff0c\u6807\u9898\uff0c\u5b66\u5206\u3002<\/li>\n<li><em>\u6559\u5e08\uff1a<\/em> \u6559\u5e08ID\uff0c\u59d3\u540d\uff0c\u804c\u79f0\u3002<\/li>\n<li><em>\u9009\u8bfe\uff1a<\/em> \u9009\u8bfeID\uff0c\u6210\u7ee9\uff0c\u5b66\u671f\u5e74\u4efd\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u786e\u5b9a\u5173\u7cfb\uff1a<\/strong>\n<ul>\n<li><em>\u5b66\u751f\u5230\u8bfe\u7a0b\uff1a<\/em> \u591a\u5bf9\u591a\u3002\u901a\u8fc7\u201c<em>\u9009\u8bfe<\/em>\u201d\u5173\u8054\u8868\u8fdb\u884c\u7ba1\u7406\u3002<\/li>\n<li><em>\u8bfe\u7a0b\u5230\u6559\u5e08\uff1a<\/em> \u591a\u5bf9\u591a\u3002\u4e00\u95e8\u8bfe\u7a0b\u5728\u4e0d\u540c\u65f6\u95f4\u53ef\u4ee5\u7531\u591a\u4f4d\u6559\u5e08\u8bb2\u6388\u3002<\/li>\n<li><em>\u8bfe\u7a0b\u5230\u5148\u4fee\u8bfe\u7a0b\uff1a<\/em> \u81ea\u5f15\u7528\u3002\u4e00\u95e8\u8bfe\u7a0b\u5c06\u53e6\u4e00\u95e8\u8bfe\u7a0b\u5217\u4e3a\u5148\u4fee\u8bfe\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>\u5904\u7406\u5148\u4fee\u8bfe\u7a0b\u903b\u8f91<\/h3>\n<p>\u5148\u4fee\u8bfe\u7a0b\u8981\u6c42\u5728\u201c<em>\u8bfe\u7a0b<\/em>\u201d\u5b9e\u4f53\u4e2d\u521b\u5efa\u4e86\u4e00\u4e2a\u9012\u5f52\u5173\u7cfb\u3002\u4f60\u9700\u8981\u5728\u201c<em>\u8bfe\u7a0b<\/em>\u201d\u8868\u4e2d\u6dfb\u52a0\u4e00\u5217\uff0c\u4f8b\u5982<em>\u5148\u4fee\u8bfe\u7a0bID<\/em>\u201d\uff0c\u5b83\u5f15\u7528\u540c\u4e00\u8868\u4e2d\u53e6\u4e00\u884c\u7684<em>\u8bfe\u7a0bID<\/em>\u3002<\/p>\n<ul>\n<li><strong>\u5b9e\u73b0\uff1a<\/strong> \u8fd9\u4f7f\u5f97<em>\u6570\u5b66101<\/em> \u8bfe\u7a0b\u94fe\u63a5\u5230\u4e00\u4e2a <em>\u6570\u5b66 100<\/em> \u8bfe\u7a0b\u3002<\/li>\n<li><strong> \u9a8c\u8bc1\uff1a<\/strong> \u7cfb\u7edf\u5fc5\u987b\u9632\u6b62\u8bfe\u7a0b\u6210\u4e3a\u81ea\u8eab\u7684\u5148\u4fee\u8bfe\u7a0b\uff0c\u4ee5\u907f\u514d\u5faa\u73af\u903b\u8f91\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h2>ERD \u8bbe\u8ba1\u4e2d\u7684\u5e38\u89c1\u9677\u9631 \u26a0\ufe0f<\/h2>\n<p>\u5373\u4f7f\u662f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u8bbe\u8ba1\u5e08\u4e5f\u4f1a\u72af\u9519\u3002\u56de\u987e\u5e38\u89c1\u9519\u8bef\u6709\u52a9\u4e8e\u4f60\u5728\u5b9e\u65bd\u524d\u5b8c\u5584\u4f60\u7684\u6a21\u578b\u3002<\/p>\n<h3>1. \u5197\u4f59\u6570\u636e<\/h3>\n<p>\u5728\u591a\u4e2a\u4f4d\u7f6e\u5b58\u50a8\u76f8\u540c\u7684\u4fe1\u606f\u4f1a\u589e\u52a0\u4e0d\u4e00\u81f4\u7684\u98ce\u9669\u3002\u4f8b\u5982\uff0c\u5728 <em>\u8ba2\u5355<\/em> \u8868\u4e2d\u5b58\u50a8\u5ba2\u6237\u5730\u5740\u5bf9\u4e8e\u914d\u9001\u76ee\u7684\u6765\u8bf4\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff0c\u4f46 <em>\u5ba2\u6237<\/em> \u8868\u5e94\u4fdd\u6301\u4e3a\u4ed6\u4eec\u6c38\u4e45\u5730\u5740\u7684\u552f\u4e00\u771f\u5b9e\u6765\u6e90\u3002<\/p>\n<ul>\n<li><strong>\u68c0\u67e5\uff1a<\/strong> \u8be2\u95ee\u5728\u4e00\u5f20\u8868\u4e2d\u66f4\u6539\u5c5e\u6027\u662f\u5426\u9700\u8981\u5728\u5176\u4ed6\u8868\u4e2d\u8fdb\u884c\u66f4\u65b0\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u5c3d\u53ef\u80fd\u5c06\u6570\u636e\u89c4\u8303\u5316\u5230\u7b2c\u4e09\u8303\u5f0f\uff083NF\uff09\u3002<\/li>\n<\/ul>\n<h3>2. \u6a21\u7cca\u7684\u5173\u7cfb<\/h3>\n<p>\u6709\u65f6\u4e0d\u6e05\u695a\u5173\u7cfb\u662f\u5f3a\u5236\u6027\u7684\u8fd8\u662f\u53ef\u9009\u7684\u3002\u5728 <em>\u5ba2\u6237<\/em> \u5230 <em>\u8ba2\u5355<\/em> \u7684\u5173\u7cfb\u4e2d\uff0c\u5ba2\u6237\u5728\u4e0b\u5355\u524d\u5c31\u5df2\u5b58\u5728\u3002\u7136\u800c\uff0c\u8ba2\u5355\u5fc5\u987b\u59cb\u7ec8\u5c5e\u4e8e\u67d0\u4e2a\u5ba2\u6237\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6982\u5ff5<\/th>\n<th>\u542b\u4e49<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u53ef\u9009\u5173\u7cfb<\/td>\n<td>\u6b64\u4fa7\u7684\u5b9e\u4f53\u4e0d\u9700\u8981\u4e0e\u53e6\u4e00\u5b9e\u4f53\u5efa\u7acb\u94fe\u63a5\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5f3a\u5236\u5173\u7cfb<\/td>\n<td>\u6b64\u4fa7\u7684\u5b9e\u4f53\u5fc5\u987b\u4e0e\u53e6\u4e00\u5b9e\u4f53\u5efa\u7acb\u94fe\u63a5\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>3. \u5ffd\u89c6\u6570\u636e\u7c7b\u578b<\/h3>\n<p>\u9009\u62e9\u9519\u8bef\u7684\u6570\u636e\u7c7b\u578b\u53ef\u80fd\u5bfc\u81f4\u5b58\u50a8\u6548\u7387\u4f4e\u4e0b\u6216\u8ba1\u7b97\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5728\u6ca1\u6709\u5c0f\u6570\u7684Price\u5b57\u6bb5\u4e2d\u4f7f\u7528Integer\u7c7b\u578b\uff0c\u5c06\u4f1a\u5bfc\u81f4\u8d27\u5e01\u7cbe\u5ea6\u4e22\u5931\u3002<\/p>\n<ul>\n<li><strong>\u6700\u4f73\u5b9e\u8df5\uff1a<\/strong> \u5bf9\u4e8e\u8d27\u5e01\u4f7f\u7528Decimal\u7c7b\u578b\uff0c\u5bf9\u4e8e\u8c03\u5ea6\u4f7f\u7528Date\/Time\u7c7b\u578b\u3002<\/li>\n<li><strong>\u7ea6\u675f\uff1a<\/strong> \u4e3a\u6587\u672c\u5b57\u6bb5\u5b9a\u4e49\u6700\u5927\u957f\u5ea6\uff0c\u4ee5\u9632\u6b62\u6570\u636e\u5e93\u81a8\u80c0\u3002<\/li>\n<\/ul>\n<h2>\u5206\u6b65\u5efa\u6a21\u5de5\u4f5c\u6d41\u7a0b \ud83d\udcdd<\/h2>\n<p>\u9075\u5faa\u6b64\u7ed3\u6784\u5316\u65b9\u6cd5\uff0c\u4ee5\u786e\u4fdd\u6240\u6709\u7ec3\u4e60\u95ee\u9898\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<ol>\n<li><strong>\u6536\u96c6\u9700\u6c42\uff1a<\/strong> \u5217\u51fa\u95ee\u9898\u63cf\u8ff0\u4e2d\u627e\u5230\u7684\u6bcf\u4e2a\u540d\u8bcd\uff08\u5b9e\u4f53\uff09\u548c\u52a8\u8bcd\uff08\u5173\u7cfb\uff09\u3002<\/li>\n<li><strong>\u7ed8\u5236\u521d\u59cb\u56fe\u793a\uff1a<\/strong> \u653e\u7f6e\u5b9e\u4f53\u5e76\u753b\u7ebf\u8868\u793a\u8fde\u63a5\u3002\u76ee\u524d\u4e0d\u5fc5\u62c5\u5fc3\u5b8c\u7f8e\u3002<\/li>\n<li><strong>\u5206\u914d\u952e\uff1a<\/strong> \u4e3a\u6bcf\u4e2a\u5b9e\u4f53\u786e\u5b9a\u4e3b\u952e\uff0c\u4e3a\u6bcf\u4e2a\u5173\u7cfb\u786e\u5b9a\u5916\u952e\u3002<\/li>\n<li><strong>\u7ec6\u5316\u57fa\u6570\uff1a<\/strong> \u6839\u636e\u4e1a\u52a1\u89c4\u5219\u9a8c\u8bc11:1\u30011:N\u548cM:N\u5173\u7cfb\u3002<\/li>\n<li><strong>\u6dfb\u52a0\u5c5e\u6027\uff1a<\/strong> 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