{"id":1792,"date":"2026-03-24T08:33:42","date_gmt":"2026-03-24T08:33:42","guid":{"rendered":"https:\/\/www.go-diagram.com\/cn\/normalization-meets-erd-designing-efficient-database-structures\/"},"modified":"2026-03-24T08:33:42","modified_gmt":"2026-03-24T08:33:42","slug":"normalization-meets-erd-designing-efficient-database-structures","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/cn\/normalization-meets-erd-designing-efficient-database-structures\/","title":{"rendered":"\u89c4\u8303\u5316\u4e0eERD\u76f8\u7ed3\u5408\uff1a\u8bbe\u8ba1\u9ad8\u6548\u7684\u6570\u636e\u5e93\u7ed3\u6784"},"content":{"rendered":"<p>\u8bbe\u8ba1\u6570\u636e\u5e93\u4e0d\u4ec5\u4ec5\u662f\u5b58\u50a8\u6570\u636e\uff1b\u66f4\u91cd\u8981\u7684\u662f\u4ee5\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u3001\u51cf\u5c11\u5197\u4f59\u5e76\u4f18\u5316\u6027\u80fd\u7684\u65b9\u5f0f\u6765\u7ec4\u7ec7\u4fe1\u606f\u3002\u5f53\u6211\u4eec\u8c08\u8bba\u9ad8\u6548\u7684\u6570\u636e\u5e93\u7ed3\u6784\u65f6\uff0c\u6709\u4e24\u4e2a\u652f\u67f1\u5c24\u4e3a\u7a81\u51fa\uff1a<strong>\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09<\/strong>\u548c<strong>\u89c4\u8303\u5316<\/strong>\u3002\u8fd9\u4e9b\u6982\u5ff5\u5e76\u975e\u5b64\u7acb\u7684\u6280\u672f\uff0c\u800c\u662f\u76f8\u8f85\u76f8\u6210\u7684\u5de5\u5177\uff0c\u5171\u540c\u6784\u5efa\u575a\u5b9e\u7684\u6570\u636e\u57fa\u7840\u3002<\/p>\n<p>\u672c\u6307\u5357\u63a2\u8ba8\u5982\u4f55\u5c06ERD\u7684\u89c6\u89c9\u6e05\u6670\u6027\u4e0e\u89c4\u8303\u5316\u7684\u7ed3\u6784\u4e25\u8c28\u6027\u76f8\u7ed3\u5408\u3002\u6211\u4eec\u5c06\u9010\u6b65\u4ecb\u7ecd\u5982\u4f55\u5c06\u6982\u5ff5\u6a21\u578b\u8f6c\u5316\u4e3a\u4e00\u4e2a\u7ecf\u5f97\u8d77\u65f6\u95f4\u8003\u9a8c\u7684\u5b9e\u7528\u6570\u636e\u6a21\u5f0f\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Kawaii-style educational infographic illustrating how Entity Relationship Diagrams (ERD) and database normalization work together to create efficient database structures, featuring cute pastel visuals of the 3-step normalization process (1NF, 2NF, 3NF), a library example showing data redundancy reduction, normalization vs denormalization trade-offs, and best practices checklist for database design\" decoding=\"async\" src=\"https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/03\/kawaii-erd-normalization-database-design-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83d\udcd0 \u7406\u89e3\u57fa\u7840\uff1aERD\u4e0e\u89c4\u8303\u5316<\/h2>\n<p>\u5728\u6df1\u5165\u8bbe\u8ba1\u8fc7\u7a0b\u4e4b\u524d\uff0c\u7406\u89e3\u8fd9\u4e24\u79cd\u65b9\u6cd5\u8bba\u5404\u81ea\u7684\u4e0d\u540c\u4f5c\u7528\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h3>\ud83d\udcca \u4ec0\u4e48\u662f\u5b9e\u4f53\u5173\u7cfb\u56fe\uff1f<\/h3>\n<p>\u5b9e\u4f53\u5173\u7cfb\u56fe\u662f\u6570\u636e\u5e93\u7684\u89c6\u89c9\u84dd\u56fe\u3002\u5b83\u63cf\u7ed8\u4e86\u5b9e\u4f53\uff08\u8868\uff09\u3001\u5c5e\u6027\uff08\u5217\uff09\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\uff08\u94fe\u63a5\uff09\u3002\u53ef\u4ee5\u5c06\u5176\u89c6\u4e3a\u5efa\u7b51\u7684\u5efa\u7b51\u8bbe\u8ba1\u56fe\u3002\u5b83\u56de\u7b54\u8bf8\u5982\u4ee5\u4e0b\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u6211\u4eec\u7684\u7cfb\u7edf\u4e2d\u7684\u6838\u5fc3\u5bf9\u8c61\u662f\u4ec0\u4e48\uff1f\uff08\u4f8b\u5982\uff1a<em>\u5ba2\u6237<\/em>, <em>\u8ba2\u5355<\/em>)<\/li>\n<li>\u8fd9\u4e9b\u5bf9\u8c61\u4e4b\u95f4\u5982\u4f55\u4ea4\u4e92\uff1f\uff08\u4f8b\u5982\uff1a\u4e00\u4e2a<em>\u5ba2\u6237<\/em>\u4f1a\u4e0b\u591a\u4e2a<em>\u8ba2\u5355<\/em>)<\/li>\n<li>\u6211\u4eec\u9700\u8981\u4e3a\u6bcf\u4e2a\u5bf9\u8c61\u5b58\u50a8\u54ea\u4e9b\u6570\u636e\uff1f\uff08\u4f8b\u5982\uff1a<em>\u5ba2\u6237<\/em>\u9700\u8981\u4e00\u4e2a<em>\u59d3\u540d<\/em>\u548c<em>\u7535\u5b50\u90ae\u4ef6<\/em>)<\/li>\n<\/ul>\n<p>\u6ca1\u6709ERD\uff0c\u6570\u636e\u5e93\u8bbe\u8ba1\u5c31\u4f1a\u53d8\u6210\u4e00\u573a\u731c\u6d4b\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9ad8\u5c42\u89c6\u89d2\uff0c\u5229\u76ca\u76f8\u5173\u8005\u53ef\u4ee5\u7406\u89e3\uff0c\u4ece\u800c\u786e\u4fdd\u5728\u7f16\u5199\u4efb\u4f55\u4ee3\u7801\u4e4b\u524d\uff0c\u6240\u6709\u4eba\u90fd\u5bf9\u6570\u636e\u9700\u6c42\u8fbe\u6210\u4e00\u81f4\u3002<\/p>\n<h3>\ud83e\uddfc \u4ec0\u4e48\u662f\u89c4\u8303\u5316\uff1f<\/h3>\n<p>\u89c4\u8303\u5316\u662f\u901a\u8fc7\u7ec4\u7ec7\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u6765\u51cf\u5c11\u5197\u4f59\u5e76\u63d0\u9ad8\u6570\u636e\u5b8c\u6574\u6027\u7684\u8fc7\u7a0b\u3002\u5b83\u6d89\u53ca\u5c06\u5927\u578b\u8868\u62c6\u5206\u4e3a\u66f4\u5c0f\u3001\u66f4\u903b\u8f91\u5316\u7684\u7ed3\u6784\uff0c\u5e76\u5728\u5b83\u4eec\u4e4b\u95f4\u5b9a\u4e49\u5173\u7cfb\u3002\u76ee\u6807\u662f\u786e\u4fdd\u6bcf\u6761\u6570\u636e\u90fd\u53ea\u5b58\u50a8\u5728\u4e00\u4e2a\u4f4d\u7f6e\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u8fd9\u5f88\u91cd\u8981\uff1f<\/p>\n<ul>\n<li><strong>\u6570\u636e\u5b8c\u6574\u6027\uff1a<\/strong> \u5982\u679c\u5ba2\u6237\u7684\u5730\u5740\u53d1\u751f\u53d8\u5316\uff0c\u4f60\u53ea\u9700\u5728\u4e00\u4e2a\u5730\u65b9\u66f4\u65b0\uff0c\u800c\u4e0d\u662f\u5341\u4e2a\u5730\u65b9\u3002<\/li>\n<li><strong>\u5b58\u50a8\u6548\u7387\uff1a<\/strong> \u66f4\u5c11\u7684\u91cd\u590d\u6570\u636e\u610f\u5473\u7740\u66f4\u5c11\u7684\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u3002<\/li>\n<li><strong>\u7ef4\u62a4\uff1a<\/strong> \u968f\u7740\u65f6\u95f4\u63a8\u79fb\uff0c\u66f4\u6613\u4e8e\u7ef4\u62a4\u548c\u66f4\u65b0\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<h2>\u2699\ufe0f \u4ea4\u6c47\u70b9\uff1a\u5c06ERD\u4e0e\u89c4\u8303\u5316\u7ed3\u5408<\/h2>\n<p>\u8bbe\u8ba1\u6570\u636e\u5e93\u901a\u5e38\u4eceERD\u5f00\u59cb\uff0c\u4f46\u539f\u59cb\u7684ERD\u5f88\u5c11\u80fd\u76f4\u63a5\u7528\u4e8e\u751f\u4ea7\u3002\u5b83\u901a\u5e38\u5305\u542b\u89c4\u8303\u5316\u6240\u89e3\u51b3\u7684\u5197\u4f59\u3002\u5de5\u4f5c\u6d41\u7a0b\u5305\u62ec\u521b\u5efa\u6982\u5ff5ERD\uff0c\u5206\u6790\u5176\u4e2d\u7684\u5f02\u5e38\uff0c\u5e76\u5e94\u7528\u89c4\u8303\u5316\u89c4\u5219\u6765\u4f18\u5316\u6a21\u5f0f\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u5178\u578b\u7684\u5de5\u4f5c\u6d41\u7a0b\uff1a<\/p>\n<ol>\n<li><strong>\u6982\u5ff5\u8bbe\u8ba1\uff1a<\/strong> \u6839\u636e\u9700\u6c42\u7ed8\u5236\u521d\u59cb\u7684ERD\u3002<\/li>\n<li><strong>\u903b\u8f91\u8bbe\u8ba1\uff1a<\/strong> \u5c06ERD\u7ec6\u5316\u4e3a\u8868\u548c\u5217\u3002<\/li>\n<li><strong>\u89c4\u8303\u5316\uff1a<\/strong> \u5e94\u7528\u89c4\u8303\u5316\u5f62\u5f0f\uff081NF\u30012NF\u30013NF\uff09\u4ee5\u6d88\u9664\u5f02\u5e38\u3002<\/li>\n<li><strong>\u7269\u7406\u8bbe\u8ba1\uff1a<\/strong> \u9488\u5bf9\u7279\u5b9a\u7684\u6570\u636e\u5e93\u5f15\u64ce\u548c\u6027\u80fd\u9700\u6c42\u8fdb\u884c\u4f18\u5316\u3002<\/li>\n<\/ol>\n<h2>\ud83d\udd0d \u9010\u6b65\u6307\u5357\uff1a\u4eceERD\u5230\u89c4\u8303\u5316\u6a21\u5f0f<\/h2>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u5b9e\u9645\u573a\u666f\u6765\u4e86\u89e3\u5176\u5b9e\u9645\u8fd0\u4f5c\u65b9\u5f0f\u3002\u5047\u8bbe\u6211\u4eec\u6b63\u5728\u6784\u5efa\u4e00\u4e2a\u7528\u4e8e\u7ba1\u7406\u56fe\u4e66\u9986\u7684\u7cfb\u7edf\u3002<\/p>\n<h3>1. \u672a\u89c4\u8303\u5316\u7684\u72b6\u6001<\/h3>\n<p>\u6700\u521d\uff0c\u4f60\u53ef\u80fd\u4f1a\u8bbe\u8ba1\u4e00\u4e2a\u5355\u4e00\u7684\u8868\u6765\u5b58\u50a8\u6709\u5173\u4e66\u7c4d\u548c\u4f5c\u8005\u7684\u6240\u6709\u4fe1\u606f\u3002\u8fd9\u88ab\u79f0\u4e3a\u672a\u89c4\u8303\u5316\u7684\u8868\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>BookID<\/th>\n<th>\u6807\u9898<\/th>\n<th>\u4f5c\u8005\u59d3\u540d<\/th>\n<th>\u4f5c\u8005\u7535\u8bdd<\/th>\n<th>\u7c7b\u578b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>101<\/td>\n<td>\u4f1f\u5927\u7684\u5c0f\u8bf4<\/td>\n<td>\u7ea6\u7ff0\u00b7\u591a\u4f0a<\/td>\n<td>555-0101<\/td>\n<td>\u5c0f\u8bf4<\/td>\n<\/tr>\n<tr>\n<td>102<\/td>\n<td>\u795e\u79d8\u4e4b\u4e66<\/td>\n<td>\u7ea6\u7ff0\u00b7\u591a\u4f0a<\/td>\n<td>555-0101<\/td>\n<td>\u795e\u79d8<\/td>\n<\/tr>\n<tr>\n<td>103<\/td>\n<td>\u53e6\u4e00\u672c\u4e66<\/td>\n<td>\u7b80\u00b7\u53f2\u5bc6\u65af<\/td>\n<td>555-0102<\/td>\n<td>\u5c0f\u8bf4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6ce8\u610f\u8fd9\u91cc\u7684\u554f\u984c\u55ce\uff1f<em>\u7ea6\u7ff0\u00b7\u591a\u4f0a<\/em>\u7684\u7535\u8bdd\u53f7\u7801\u88ab\u91cd\u590d\u3002\u5982\u679c\u4ed6\u66f4\u6539\u53f7\u7801\uff0c\u4f60\u5fc5\u987b\u66f4\u65b0\u591a\u884c\u3002\u8fd9\u662f\u4e00\u4e2a<strong>\u66f4\u65b0\u5f02\u5e38<\/strong>.<\/p>\n<h3>2. \u7b2c\u4e00\u8303\u5f0f\uff081NF\uff09<\/h3>\n<p>\u89c4\u8303\u5316\u7684\u7b2c\u4e00\u6761\u89c4\u5219\u662f\u786e\u4fdd\u539f\u5b50\u6027\u3002\u6bcf\u4e00\u5217\u53ea\u80fd\u5305\u542b\u4e00\u4e2a\u503c\uff0c\u4e14\u4e0d\u5e94\u5b58\u5728\u91cd\u590d\u7684\u7ec4\u3002<\/p>\n<ul>\n<li><strong>\u89c4\u5219\uff1a<\/strong>\u6d88\u9664\u91cd\u590d\u7684\u7ec4\u5e76\u786e\u4fdd\u503c\u4e3a\u539f\u5b50\u6027\u3002<\/li>\n<li><strong>\u5e94\u7528\uff1a<\/strong> \u5728\u6211\u4eec\u7684\u56fe\u4e66\u9986\u793a\u4f8b\u4e2d\uff0c\u521d\u59cb\u8868\u53ef\u80fd\u5df2\u7ecf\u662f\u539f\u5b50\u7684\uff0c\u4f46\u6211\u4eec\u5fc5\u987b\u786e\u4fdd\u62e5\u6709\u4e3b\u952e\u3002\u5047\u8bbe<em>BookID<\/em>\u662f\u552f\u4e00\u7684\u3002<\/li>\n<li><strong>\u7ed3\u679c\uff1a<\/strong> \u73b0\u5728\u6211\u4eec\u6709\u4e00\u4e2a\u6bcf\u4e2a\u5355\u5143\u683c\u53ea\u5305\u542b\u4e00\u4e2a\u6570\u636e\u9879\u7684\u8868\u3002<\/li>\n<\/ul>\n<h3>3. \u7b2c\u4e8c\u8303\u5f0f\uff082NF\uff09<\/h3>\n<p>\u4e00\u65e6\u8868\u5904\u4e8e1NF\uff0c\u6211\u4eec\u5c31\u68c0\u67e5\u662f\u5426\u5b58\u5728\u90e8\u5206\u4f9d\u8d56\u3002\u5982\u679c\u8868\u5904\u4e8e1NF\uff0c\u5e76\u4e14\u6bcf\u4e2a\u975e\u952e\u5c5e\u6027\u90fd\u5b8c\u5168\u4f9d\u8d56\u4e8e\u4e3b\u952e\uff0c\u5219\u8be5\u8868\u5904\u4e8e2NF\u3002<\/p>\n<ul>\n<li><strong>\u573a\u666f\uff1a<\/strong> \u5982\u679c\u6211\u4eec\u6709\u4e00\u4e2a\u590d\u5408\u952e\uff08\u4f8b\u5982\uff0c<em>BookID<\/em> + <em>AuthorID<\/em>\uff09\uff0c\u6211\u4eec\u4f1a\u68c0\u67e5\u662f\u5426<em>AuthorPhone<\/em> \u4f9d\u8d56\u4e8e\u6574\u4e2a\u952e\uff0c\u8fd8\u662f\u4ec5\u4f9d\u8d56\u4e8e\u4f5c\u8005\u90e8\u5206\u3002<\/li>\n<li><strong>\u64cd\u4f5c\uff1a<\/strong> \u5728\u6211\u4eec\u7684\u4f8b\u5b50\u4e2d\uff0c<em>AuthorPhone<\/em> \u4f9d\u8d56\u4e8e<em>AuthorName<\/em>\uff0c\u800c\u4e0d\u662f<em>BookID<\/em>\u3002\u8fd9\u8868\u660e\u6211\u4eec\u5e94\u8be5\u5c06\u4f5c\u8005\u6570\u636e\u4e0e\u4e66\u7c4d\u6570\u636e\u5206\u5f00\u3002<\/li>\n<\/ul>\n<h3>4. \u7b2c\u4e09\u8303\u5f0f\uff083NF\uff09<\/h3>\n<p>\u8fd9\u624d\u662f\u771f\u6b63\u7684\u5173\u952e\u6240\u5728\u30023NF \u6d88\u9664\u4e86\u4f20\u9012\u4f9d\u8d56\u3002\u975e\u4e3b\u952e\u5c5e\u6027\u4e0d\u5e94\u4f9d\u8d56\u4e8e\u5176\u4ed6\u975e\u4e3b\u952e\u5c5e\u6027\u3002<\/p>\n<ul>\n<li><strong>\u89c4\u5219\uff1a<\/strong> \u4efb\u4f55\u5c5e\u6027\u90fd\u4e0d\u5e94\u4f9d\u8d56\u4e8e\u53e6\u4e00\u4e2a\u975e\u4e3b\u952e\u5c5e\u6027\u3002<\/li>\n<li><strong>\u5e94\u7528\uff1a<\/strong> <em>AuthorPhone<\/em> \u4f9d\u8d56\u4e8e<em>AuthorName<\/em>\u3002\u7531\u4e8e<em>AuthorName<\/em> \u4e0d\u662f\u4e66\u7c4d\u8868\u7684\u4e3b\u952e\uff0c\u6211\u4eec\u5c06\u4f5c\u8005\u4fe1\u606f\u79fb\u5230\u4e00\u4e2a\u72ec\u7acb\u7684<em>Authors<\/em> \u8868\u4e2d\u3002<\/li>\n<li><strong>\u7ed3\u679c\uff1a<\/strong> \u73b0\u5728\uff0c\u66f4\u65b0\u4f5c\u8005\u7684\u7535\u8bdd\u53f7\u7801\u53ea\u9700\u8981\u66f4\u6539\u6570\u636e\u5e93\u4e2d\u7684\u4e00\u4e2a\u8bb0\u5f55\uff0c\u800c\u4e0d\u662f\u591a\u4e2a\u8bb0\u5f55\u3002<em>\u4f5c\u8005<\/em> \u8868\uff0c\u800c\u4e0d\u662f\u5728<em>\u4e66\u7c4d<\/em> \u8868\u4e2d\u7684\u591a\u4e2a\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udccb \u89c4\u8303\u5316\u4e0e\u53cd\u89c4\u8303\u5316\uff1a\u5bfb\u627e\u5e73\u8861\u70b9<\/h2>\n<p>\u867d\u7136\u89c4\u8303\u5316\u5bf9\u4e8e\u6570\u636e\u5b8c\u6574\u6027\u81f3\u5173\u91cd\u8981\uff0c\u4f46\u5b83\u5e76\u4e0d\u603b\u662f\u63d0\u5347\u6027\u80fd\u7684\u89e3\u51b3\u65b9\u6848\u3002\u6709\u65f6\uff0c\u8bfb\u53d6\u6570\u636e\u7684\u9891\u7387\u9ad8\u4e8e\u5199\u5165\u6570\u636e\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c<strong>\u53cd\u89c4\u8303\u5316<\/strong> \u53ef\u80fd\u4f1a\u66f4\u6709\u76ca\u3002<\/p>\n<h3>\ud83d\udcc9 \u4f55\u65f6\u8fdb\u884c\u53cd\u89c4\u8303\u5316<\/h3>\n<p>\u53cd\u89c4\u8303\u5316\u662f\u6307\u5411\u89c4\u8303\u5316\u6570\u636e\u5e93\u4e2d\u6dfb\u52a0\u5197\u4f59\u6570\u636e\uff0c\u4ee5\u63d0\u5347\u8bfb\u53d6\u6027\u80fd\u3002\u8fd9\u662f\u4e00\u79cd\u5728\u5b58\u50a8\u7a7a\u95f4\u548c\u901f\u5ea6\u4e4b\u95f4\u7684\u6743\u8861\u3002<\/p>\n<ul>\n<li><strong>\u9ad8\u8bfb\u53d6\u91cf\uff1a<\/strong> \u5982\u679c\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u6bcf\u79d2\u67e5\u8be2\u6570\u636e\u6570\u5343\u6b21\uff0c\u8868\u8fde\u63a5\u53ef\u80fd\u4f1a\u964d\u4f4e\u6027\u80fd\u3002<\/li>\n<li><strong>\u62a5\u8868\u4eea\u8868\u76d8\uff1a<\/strong> \u805a\u5408\u6570\u636e\u53ef\u4ee5\u9884\u5148\u8ba1\u7b97\u5e76\u5b58\u50a8\uff0c\u4ee5\u907f\u514d\u590d\u6742\u7684\u67e5\u8be2\u3002<\/li>\n<li><strong>\u7f13\u5b58\u7b56\u7565\uff1a<\/strong> \u6709\u65f6\uff0c\u53cd\u89c4\u8303\u5316\u7684\u89c6\u56fe\u53ef\u4f5c\u4e3a\u9891\u7e41\u8bbf\u95ee\u6570\u636e\u7684\u7f13\u5b58\u3002<\/li>\n<\/ul>\n<p>\u7136\u800c\uff0c\u8fd9\u4f34\u968f\u7740\u98ce\u9669\u3002\u60a8\u5fc5\u987b\u624b\u52a8\u6216\u901a\u8fc7\u89e6\u53d1\u5668\u6765\u7ba1\u7406\u5197\u4f59\u6570\u636e\u7684\u540c\u6b65\u3002\u5982\u679c\u5904\u7406\u4e0d\u5f53\uff0c\u6570\u636e\u5b8c\u6574\u6027\u5c06\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u56e0\u7d20<\/th>\n<th>\u89c4\u8303\u5316<\/th>\n<th>\u53cd\u89c4\u8303\u5316<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u6570\u636e\u5b8c\u6574\u6027<\/strong><\/td>\n<td>\u9ad8\uff08\u5355\u4e00\u771f\u5b9e\u6765\u6e90\uff09<\/td>\n<td>\u8f83\u4f4e\uff08\u9700\u8981\u540c\u6b65\u903b\u8f91\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5199\u5165\u901f\u5ea6<\/strong><\/td>\n<td>\u8f83\u6162\uff08\u6d89\u53ca\u591a\u4e2a\u8868\uff09<\/td>\n<td>\u8f83\u5feb\uff08\u8fde\u63a5\u8f83\u5c11\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8bfb\u53d6\u901f\u5ea6<\/strong><\/td>\n<td>\u8f83\u6162\uff08\u8fde\u63a5\u8f83\u591a\uff09<\/td>\n<td>\u8f83\u5feb\uff08\u8fde\u63a5\u8f83\u5c11\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5b58\u50a8<\/strong><\/td>\n<td>\u9ad8\u6548<\/td>\n<td>\u5197\u4f59<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ud83d\udee0\ufe0f \u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\u7684\u5e38\u89c1\u9677\u9631<\/h2>\n<p>\u5373\u4f7f\u662f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u8bbe\u8ba1\u5e08\u4e5f\u4f1a\u72af\u9519\u3002\u907f\u514d\u8fd9\u4e9b\u5e38\u89c1\u9677\u9631\uff0c\u4ee5\u786e\u4fdd\u4f60\u7684\u6570\u636e\u5e93\u7ed3\u6784\u4fdd\u6301\u5065\u5eb7\u3002<\/p>\n<h3>\u274c \u5ffd\u89c6\u6570\u636e\u7c7b\u578b<\/h3>\n<p>\u9009\u62e9\u9519\u8bef\u7684\u6570\u636e\u7c7b\u578b\u4f1a\u5bfc\u81f4\u5b58\u50a8\u81a8\u80c0\u548c\u6027\u80fd\u95ee\u9898\u3002\u4f7f\u7528\u6587\u672c\u5b57\u6bb5\u5b58\u50a8\u65e5\u671f\uff0c\u6216\u4f7f\u7528\u6574\u6570\u5b58\u50a8\u7535\u8bdd\u53f7\u7801\uff0c\u4f1a\u6d6a\u8d39\u7a7a\u95f4\u5e76\u4f7f\u9a8c\u8bc1\u53d8\u5f97\u590d\u6742\u3002<\/p>\n<h3>\u274c \u8fc7\u5ea6\u89c4\u8303\u5316<\/h3>\n<p>\u5728\u6bcf\u79cd\u60c5\u51b5\u4e0b\u90fd\u8ffd\u6c425NF\u6216BCNF\uff08\u535a\u4f0a\u65af-\u79d1\u5fb7\u8303\u5f0f\uff09\u4f1a\u4f7f\u67e5\u8be2\u53d8\u5f97\u6781\u5176\u590d\u6742\u3002\u6709\u65f6\uff0c3NF\u5df2\u7ecf\u8db3\u591f\u3002\u4e0d\u8981\u4e3a\u4e86\u89c4\u8303\u5316\u800c\u89c4\u8303\u5316\u3002<\/p>\n<h3>\u274c \u5f31\u4e3b\u952e<\/h3>\n<p>\u5982\u679c\u6570\u636e\u53d1\u751f\u53d8\u5316\uff0c\u4f7f\u7528\u81ea\u7136\u952e\uff08\u5982\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff09\u4f5c\u4e3a\u4e3b\u952e\u53ef\u80fd\u5b58\u5728\u98ce\u9669\u3002\u4ee3\u7406\u952e\uff08\u81ea\u589e\u6574\u6570\u6216UUID\uff09\u901a\u5e38\u5728\u5185\u90e8\u5173\u7cfb\u4e2d\u66f4\u5b89\u5168\u3002<\/p>\n<h3>\u274c \u7f3a\u5c11\u7d22\u5f15<\/h3>\n<p>\u5373\u4f7f\u6a21\u5f0f\u5df2\u7ecf\u5f88\u597d\u5730\u89c4\u8303\u5316\uff0c\u5982\u679c\u6ca1\u6709\u9002\u5f53\u7684\u7d22\u5f15\uff0c\u6027\u80fd\u4ecd\u7136\u53ef\u80fd\u5f88\u5dee\u3002\u8bc6\u522b\u5728\u4ee5\u4e0b\u64cd\u4f5c\u4e2d\u9891\u7e41\u4f7f\u7528\u7684\u5217\uff1a<code>WHERE<\/code>, <code>JOIN<\/code>\uff0c\u6216<code>ORDER BY<\/code>\u5b50\u53e5\uff0c\u5e76\u4e3a\u5b83\u4eec\u5efa\u7acb\u7d22\u5f15\u3002<\/p>\n<h2>\ud83d\udd04 \u8bbe\u8ba1\u7684\u8fed\u4ee3\u8fc7\u7a0b<\/h2>\n<p>\u6570\u636e\u5e93\u8bbe\u8ba1\u5f88\u5c11\u662f\u7ebf\u6027\u7684\u3002\u5b83\u662f\u4e00\u4e2a\u8fed\u4ee3\u8fc7\u7a0b\u3002\u4f60\u53ef\u80fd\u4eceERD\u5f00\u59cb\uff0c\u8fdb\u884c\u89c4\u8303\u5316\uff0c\u53d1\u73b0\u6027\u80fd\u5b58\u5728\u95ee\u9898\uff0c\u7a0d\u4f5c\u53cd\u89c4\u8303\u5316\uff0c\u7136\u540e\u91cd\u65b0\u5ba1\u89c6ERD\uff0c\u4ee5\u786e\u4fdd\u5173\u7cfb\u4ecd\u7136\u51c6\u786e\u3002<\/p>\n<h3>\ud83d\udd04 \u4f18\u5316\u6b65\u9aa4<\/h3>\n<ul>\n<li><strong>\u5ba1\u67e5\u9700\u6c42\uff1a<\/strong>\u65b0\u529f\u80fd\u662f\u5426\u9700\u8981\u65b0\u589e\u8868\uff1f<\/li>\n<li><strong>\u67e5\u8be2\u5206\u6790\uff1a<\/strong>\u67e5\u770b\u6700\u6162\u7684\u67e5\u8be2\uff0c\u8bc6\u522b\u74f6\u9888\u3002<\/li>\n<li><strong>\u7ea6\u675f\u68c0\u67e5\uff1a<\/strong>\u786e\u4fdd\u5916\u952e\u88ab\u6b63\u786e\u5b9a\u4e49\uff0c\u4ee5\u9632\u6b62\u51fa\u73b0\u5b64\u7acb\u8bb0\u5f55\u3002<\/li>\n<li><strong>\u6587\u6863\uff1a<\/strong>\u4fdd\u6301\u4f60\u7684ERD\u66f4\u65b0\u3002\u8fc7\u65f6\u7684\u56fe\u8868\u6bd4\u6ca1\u6709\u56fe\u8868\u66f4\u7cdf\u7cd5\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udcc8 \u6027\u80fd\u8003\u8651<\/h2>\n<p>\u89c4\u8303\u5316\u4e3b\u8981\u89e3\u51b3\u6570\u636e\u5b8c\u6574\u6027\u95ee\u9898\u3002\u6027\u80fd\u662f\u53e6\u4e00\u4e2a\u9700\u8981\u7ecf\u5e38\u8c03\u6574\u7684\u95ee\u9898\u3002\u7136\u800c\uff0c\u4e24\u8005\u662f\u76f8\u5173\u7684\u3002<\/p>\n<h3>\ud83d\ude80 JOIN \u590d\u6742\u6027<\/h3>\n<p>\u9ad8\u5ea6\u89c4\u8303\u5316\u7684\u6570\u636e\u5e93\u9700\u8981\u66f4\u591a\u7684<code>JOIN<\/code>\u64cd\u4f5c\u6765\u68c0\u7d22\u76f8\u5173\u6570\u636e\u3002\u73b0\u4ee3\u6570\u636e\u5e93\u5f15\u64ce\u5728\u4f18\u5316\u8fde\u63a5\u65b9\u9762\u975e\u5e38\u51fa\u8272\uff0c\u4f46\u8fc7\u591a\u7684\u8fde\u63a5\u4ecd\u7136\u4f1a\u5f71\u54cd\u5ef6\u8fdf\u3002<\/p>\n<h3>\ud83d\udce6 \u5b58\u50a8\u5f15\u64ce<\/h3>\n<p>\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\u4ee5\u4e0d\u540c\u65b9\u5f0f\u5904\u7406\u6570\u636e\u3002\u6709\u4e9b\u504f\u597d\u57fa\u4e8e\u884c\u7684\u5b58\u50a8\uff0c\u800c\u53e6\u4e00\u4e9b\u5219\u504f\u597d\u57fa\u4e8e\u5217\u7684\u5b58\u50a8\u3002\u4f60\u7684\u89c4\u8303\u5316\u7b56\u7565\u53ef\u80fd\u9700\u8981\u6839\u636e\u5e95\u5c42\u5f15\u64ce\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n<h3>\ud83d\udd12 \u7ea6\u675f\u548c\u89e6\u53d1\u5668<\/h3>\n<p>\u901a\u8fc7\u7ea6\u675f\uff08\u5982\u5916\u952e\uff09\u5f3a\u5236\u6267\u884c\u89c4\u8303\u5316\u89c4\u5219\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u8d28\u91cf\u3002\u7136\u800c\uff0c\u8fc7\u5ea6\u4f7f\u7528\u89e6\u53d1\u5668\u8fdb\u884c\u9a8c\u8bc1\u4f1a\u51cf\u6162\u5199\u5165\u64cd\u4f5c\u3002\u5e94\u660e\u667a\u5730\u4f7f\u7528\u5b83\u4eec\u3002<\/p>\n<h2>\ud83e\udde9 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