{"id":1654,"date":"2026-03-23T11:07:48","date_gmt":"2026-03-23T11:07:48","guid":{"rendered":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/"},"modified":"2026-03-23T11:07:48","modified_gmt":"2026-03-23T11:07:48","slug":"common-erd-confusion-debunking-myths","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/","title":{"rendered":"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u7834\u89e3\u6bcf\u4f4d\u521d\u7ea7\u5de5\u7a0b\u5e08\u90fd\u4f1a\u9047\u5230\u7684\u8bef\u89e3"},"content":{"rendered":"<p>\u8bbe\u8ba1\u4e00\u4e2a\u7a33\u5065\u7684\u6570\u636e\u6a21\u578b\u662f\u540e\u7aef\u5de5\u7a0b\u5e08\u6216\u6570\u636e\u67b6\u6784\u5e08\u6700\u91cd\u8981\u7684\u6280\u80fd\u4e4b\u4e00\u3002\u8fd9\u4e00\u8fc7\u7a0b\u7684\u6838\u5fc3\u662f\u5b9e\u4f53-\u5173\u7cfb\u56fe\uff08ERD\uff09\u3002\u5b83\u4f5c\u4e3a\u7cfb\u7edf\u4e2d\u4fe1\u606f\u5b58\u50a8\u3001\u68c0\u7d22\u548c\u5173\u8054\u65b9\u5f0f\u7684\u84dd\u56fe\u3002\u5c3d\u7ba1\u5176\u57fa\u7840\u6027\u81f3\u5173\u91cd\u8981\uff0c\u4f46\u8bb8\u591a\u521d\u7ea7\u5de5\u7a0b\u5e08\u5728\u521b\u5efaERD\u65f6\u5b58\u5728\u8bef\u89e3\uff0c\u8fd9\u4e9b\u8bef\u89e3\u53ef\u80fd\u5bfc\u81f4\u9879\u76ee\u751f\u547d\u5468\u671f\u540e\u671f\u51fa\u73b0\u7ed3\u6784\u6027\u503a\u52a1\u3002<\/p>\n<p>\u672c\u6307\u5357\u9488\u5bf9\u6570\u636e\u5e93\u6a21\u5f0f\u8bbe\u8ba1\u4e2d\u6700\u987d\u56fa\u7684\u8bef\u89e3\u3002\u901a\u8fc7\u6f84\u6e05\u8fd9\u4e9b\u8981\u70b9\uff0c\u4f60\u53ef\u4ee5\u6784\u5efa\u51fa\u53ef\u6269\u5c55\u3001\u53ef\u7ef4\u62a4\u4e14\u903b\u8f91\u4e25\u8c28\u7684\u7cfb\u7edf\u3002\u8ba9\u6211\u4eec\u6765\u63a2\u7a76\u8fd9\u4e9b\u8bef\u89e3\u80cc\u540e\u7684\u771f\u76f8\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Kawaii-style infographic debunking 12 common Entity-Relationship Diagram myths for junior engineers, featuring cute pastel vector illustrations of database design concepts: iterative modeling, normalization balance, cardinality relationships, naming conventions, foreign key integrity, collaborative design, use-case optimization, attribute details, primary key options, continuous iteration, complex relationships, and views versus tables, all with rounded shapes and soft colors for approachable learning\" decoding=\"async\" src=\"https:\/\/www.viz-read.com\/wp-content\/uploads\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg\"\/><\/figure>\n<\/div>\n<h2>1. ERD\u4ee3\u8868\u6700\u7ec8\u7684\u6570\u636e\u5e93\u7ed3\u6784 \ud83d\udcd0<\/h2>\n<p>\u4e00\u4e2a\u5e38\u89c1\u7684\u8bef\u89e3\u662f\uff0c\u89c4\u5212\u9636\u6bb5\u7ed8\u5236\u7684\u521d\u59cb\u56fe\u8868\u5728\u6574\u4e2a\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5fc5\u987b\u4fdd\u6301\u4e0d\u53d8\u3002\u8bb8\u591a\u521d\u7ea7\u5de5\u7a0b\u5e08\u8ba4\u4e3aERD\u662f\u4e00\u4efd\u65e0\u6cd5\u8f7b\u6613\u4fee\u6539\u7684\u5408\u540c\uff0c\u5426\u5219\u5c06\u4ed8\u51fa\u5de8\u5927\u4ee3\u4ef7\u3002\u867d\u7136\u4e00\u81f4\u6027\u81f3\u5173\u91cd\u8981\uff0c\u4f46\u5c06\u56fe\u8868\u89c6\u4e3a\u4e0d\u53ef\u66f4\u6539\u7684\u77f3\u677f\uff0c\u5f80\u5f80\u4f1a\u5bfc\u81f4\u9002\u5e94\u6027\u5dee\u3002<\/p>\n<ul>\n<li><strong>\u8fed\u4ee3\u8bbe\u8ba1\uff1a<\/strong>\u6570\u636e\u5e93\u5efa\u6a21\u662f\u4e00\u4e2a\u8fed\u4ee3\u8fc7\u7a0b\u3002\u968f\u7740\u9700\u6c42\u7684\u53d8\u5316\uff0c\u6a21\u5f0f\u4e5f\u5fc5\u987b\u968f\u4e4b\u6f14\u53d8\u3002<\/li>\n<li><strong>\u91cd\u6784\uff1a<\/strong> \u901a\u5e38\uff0c\u5c3d\u65e9\u91cd\u6784\u8868\u7ed3\u6784\u6bd4\u591a\u5e74\u80cc\u8d1f\u6280\u672f\u503a\u52a1\u8981\u597d\u5f97\u591a\u3002<\/li>\n<li><strong> \u6587\u6863\u5316\uff1a<\/strong> ERD\u5145\u5f53\u52a8\u6001\u6587\u6863\u3002\u6bcf\u5f53\u53d1\u751f\u7ed3\u6784\u53d8\u66f4\u65f6\uff0c\u90fd\u5e94\u66f4\u65b0\u5b83\u3002<\/li>\n<\/ul>\n<p>\u4e0e\u5176\u5c06\u56fe\u8868\u89c6\u4e3a\u6700\u7ec8\u76ee\u6807\uff0c\u4e0d\u5982\u5c06\u5176\u89c6\u4e3a\u5f53\u524d\u7406\u89e3\u7684\u5feb\u7167\u3002\u654f\u6377\u65b9\u6cd5\u9f13\u52b1\u7075\u6d3b\u6027\u3002\u5982\u679c\u51fa\u73b0\u65b0\u9700\u6c42\uff0c\u9700\u8981\u5b9e\u4f53\u95f4\u5efa\u7acb\u4e0d\u540c\u7684\u5173\u7cfb\uff0c\u56fe\u8868\u5e94\u7acb\u5373\u53cd\u6620\u8fd9\u4e00\u53d8\u5316\u3002\u5bf9\u65e9\u671f\u8349\u56fe\u7684\u50f5\u5316\u9075\u5faa\u4f1a\u6291\u5236\u521b\u65b0\uff0c\u5e76\u4f7f\u672a\u6765\u529f\u80fd\u7684\u96c6\u6210\u53d8\u5f97\u6781\u4e3a\u56f0\u96be\u3002<\/p>\n<h2>2. \u66f4\u591a\u7684\u8868\u603b\u662f\u66f4\u6709\u5229\u4e8e\u7ec4\u7ec7 \ud83d\uddc2\ufe0f<\/h2>\n<p>\u65b0\u624b\u5f80\u5f80\u503e\u5411\u4e8e\u8fc7\u5ea6\u89c4\u8303\u5316\u3002\u5176\u903b\u8f91\u662f\u4e3a\u6bcf\u4e2a\u6982\u5ff5\u90fd\u521b\u5efa\u4e00\u4e2a\u4e13\u95e8\u7684\u8868\uff0c\u4ee5\u4fdd\u6301\u6570\u636e\u5e93\u7684\u6574\u6d01\u3002\u7136\u800c\uff0c\u8fc7\u5ea6\u7684\u788e\u7247\u5316\u4f1a\u635f\u5bb3\u6027\u80fd\u5e76\u589e\u52a0\u67e5\u8be2\u590d\u6742\u5ea6\u3002<\/p>\n<p>\u5728\u51b3\u5b9a\u662f\u5426\u521b\u5efa\u65b0\u8868\u65f6\uff0c\u5e94\u6743\u8861\u4ee5\u4e0b\u5229\u5f0a\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8be2\u590d\u6742\u5ea6\uff1a<\/strong>\u6bcf\u4e2a\u65b0\u8868\u90fd\u4f1a\u5f15\u5165\u4e00\u4e2a\u65b0\u7684\u8fde\u63a5\u3002\u8fde\u63a5\u8fc7\u591a\u4f1a\u51cf\u6162\u8bfb\u53d6\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u53ef\u7ef4\u62a4\u6027\uff1a<\/strong>\u5305\u542b\u6570\u767e\u5f20\u8868\u7684\u6a21\u5f0f\u53ef\u80fd\u53d8\u5f97\u96be\u4ee5\u5bfc\u822a\u548c\u7406\u89e3\u3002<\/li>\n<li><strong>\u5b58\u50a8\u5f00\u9500\uff1a<\/strong>\u5c3d\u7ba1\u5b58\u50a8\u6210\u672c\u4f4e\u5ec9\uff0c\u4f46\u5728\u5927\u89c4\u6a21\u4e0b\uff0c\u7d22\u5f15\u5f00\u9500\u548c\u4e8b\u52a1\u65e5\u5fd7\u589e\u957f\u4ecd\u53ef\u80fd\u6210\u4e3a\u95ee\u9898\u3002<\/li>\n<\/ul>\n<p>\u76ee\u6807\u4e0d\u662f\u6700\u5927\u5316\u8868\u7684\u6570\u91cf\uff0c\u800c\u662f\u6700\u5927\u5316\u6570\u636e\u5b8c\u6574\u6027\u548c\u68c0\u7d22\u6548\u7387\u3002\u6709\u65f6\uff0c\u5bf9\u4e8e\u8bfb\u53d6\u5bc6\u96c6\u578b\u5e94\u7528\uff0c\u975e\u89c4\u8303\u5316\u7ed3\u6784\u624d\u662f\u6b63\u786e\u9009\u62e9\u3002\u8fd9\u4e00\u51b3\u7b56\u53d6\u51b3\u4e8e\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u5177\u4f53\u8bbf\u95ee\u6a21\u5f0f\u3002<\/p>\n<h3>\u89c4\u8303\u5316\u4e0e\u975e\u89c4\u8303\u5316\u7684\u6743\u8861<\/h3>\n<table border=\"1\" cellpadding=\"10\" cellspacing=\"0\">\n<thead>\n<tr>\n<th>\u65b9\u9762<\/th>\n<th>\u89c4\u8303\u5316<\/th>\n<th>\u975e\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<\/td>\n<td>\u8f83\u4f4e\uff08\u9700\u8981\u5e94\u7528\u903b\u8f91\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5199\u5165\u6027\u80fd<\/strong><\/td>\n<td>\u8f83\u6162\uff08\u7ea6\u675f\u66f4\u591a\uff09<\/td>\n<td>\u66f4\u5feb<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8bfb\u53d6\u6027\u80fd<\/strong><\/td>\n<td>\u8f83\u6162\uff08\u8fde\u63a5\u66f4\u591a\uff09<\/td>\n<td>\u66f4\u5feb<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4f7f\u7528\u573a\u666f<\/strong><\/td>\n<td>OLTP\uff08\u4e8b\u52a1\u7cfb\u7edf\uff09<\/td>\n<td>OLAP\uff08\u62a5\u544a\u4e0e\u5206\u6790\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>3. \u57fa\u6570\u662f\u53ef\u9009\u4fe1\u606f \ud83d\udcc9<\/h2>\n<p>ERD\u521b\u5efa\u4e2d\u6700\u5177\u6709\u7834\u574f\u6027\u7684\u9519\u8bef\u4e4b\u4e00\u5c31\u662f\u5ffd\u7565\u57fa\u6570\u3002\u57fa\u6570\u5b9a\u4e49\u4e86\u4e24\u4e2a\u5b9e\u4f53\u4e4b\u95f4\u7684\u5173\u7cfb\u6570\u91cf\uff08\u4f8b\u5982\uff0c\u4e00\u5bf9\u4e00\u3001\u4e00\u5bf9\u591a\uff09\u3002\u4e00\u4e9b\u5de5\u7a0b\u5e08\u53ea\u5173\u6ce8\u5c5e\u6027\uff0c\u5374\u5fd8\u8bb0\u4e86\u8fde\u63a5\u5173\u7cfb\u3002<\/p>\n<p>\u5982\u679c\u6ca1\u6709\u5b9a\u4e49\u57fa\u6570\uff0c\u6570\u636e\u5e93\u5f15\u64ce\u5c31\u65e0\u6cd5\u6709\u6548\u6267\u884c\u6570\u636e\u89c4\u5219\u3002\u8fd9\u4f1a\u5bfc\u81f4\u5b64\u7acb\u8bb0\u5f55\u548c\u72b6\u6001\u4e0d\u4e00\u81f4\u3002<\/p>\n<ul>\n<li><strong>\u4e00\u5bf9\u4e00\uff081:1\uff09\uff1a<\/strong> \u5f88\u5c11\u89c1\uff0c\u4f46\u53ef\u7528\u4e8e\u5b89\u5168\u76ee\u7684\u6216\u62c6\u5206\u5927\u578b\u8868\u3002<\/li>\n<li><strong>\u4e00\u5bf9\u591a\uff081:N\uff09\uff1a<\/strong> \u6700\u5e38\u89c1\u7684\u5173\u7cfb\uff08\u4f8b\u5982\uff0c\u4e00\u4e2a\u7528\u6237\u62e5\u6709\u591a\u4e2a\u8ba2\u5355\uff09\u3002<\/li>\n<li><strong>\u591a\u5bf9\u591a\uff08M:N\uff09\uff1a<\/strong> \u9700\u8981\u4e00\u4e2a\u8fde\u63a5\u8868\u6765\u89e3\u51b3\uff08\u4f8b\u5982\uff0c\u5b66\u751f\u548c\u8bfe\u7a0b\uff09\u3002<\/li>\n<\/ul>\n<p>\u5f53\u4f60\u5b9a\u4e49\u8fd9\u4e9b\u5173\u7cfb\u65f6\uff0c\u4f60\u5c31\u5728\u5411\u5176\u4ed6\u5f00\u53d1\u8005\u4f20\u8fbe\u4f60\u7684\u610f\u56fe\u3002\u5916\u952e\u7ea6\u675f\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a\u6280\u672f\u8981\u6c42\uff1b\u5b83\u662f\u4e00\u79cd\u8bed\u4e49\u58f0\u660e\uff0c\u8bf4\u660e\u6570\u636e\u5982\u4f55\u4e0e\u81ea\u8eab\u5173\u8054\u3002<\/p>\n<h2>4. \u547d\u540d\u89c4\u8303\u5e76\u4e0d\u91cd\u8981 \ud83c\udff7\ufe0f<\/h2>\n<p>\u4f7f\u7528\u50cf\u8fd9\u6837\u7684\u7b80\u77ed\u3001\u6666\u6da9\u7684\u540d\u79f0\uff08\u4f8b\u5982<code>tbl_usr<\/code> \u6216 <code>col_id_1<\/code> \u8fd9\u6837\u53ef\u4ee5\u8282\u7701\u6253\u5b57\u65f6\u95f4\u3002\u7136\u800c\uff0c\u4ee3\u7801\u548c\u6a21\u5f0f\u540d\u79f0\u88ab\u9605\u8bfb\u7684\u6b21\u6570\u8fdc\u591a\u4e8e\u88ab\u7f16\u5199\u7684\u65f6\u5019\u3002<\/p>\n<p>\u6e05\u6670\u7684\u547d\u540d\u89c4\u8303\u53ef\u4ee5\u964d\u4f4e\u8ba4\u77e5\u8d1f\u62c5\u3002\u5f53\u65b0\u5f00\u53d1\u8005\u52a0\u5165\u56e2\u961f\u65f6\uff0c\u4ed6\u4eec\u5e94\u8be5\u80fd\u5728\u51e0\u5206\u949f\u5185\u7406\u89e3\u6a21\u5f0f\u7ed3\u6784\u3002<\/p>\n<p>\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u4e00\u81f4\u6027\uff1a<\/strong> \u5728\u6574\u4e2a\u9879\u76ee\u4e2d\u4f7f\u7528\u76f8\u540c\u7684\u547d\u540d\u98ce\u683c\uff08snake_case\u3001camelCase\uff09\u3002<\/li>\n<li><strong>\u63cf\u8ff0\u6027\uff1a<\/strong> \u8868\u540d\u5e94\u4ee3\u8868\u5b9e\u4f53\uff08\u4f8b\u5982\uff0c&#8221;<code>\u7528\u6237<\/code>\uff0c\u800c\u4e0d\u662f<code>t1<\/code>).<\/li>\n<li><strong>\u590d\u6570\u5f62\u5f0f\uff1a<\/strong> \u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u8868\u4ee3\u8868\u96c6\u5408\uff0c\u56e0\u6b64\u4f7f\u7528\u590d\u6570\u540d\u79f0\u5f80\u5f80\u66f4\u6e05\u6670\uff08\u4f8b\u5982\uff0c<code>\u8ba2\u5355<\/code> \u5bf9\u6bd4 <code>order<\/code>).<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528\u4fdd\u7559\u5b57\uff1a<\/strong> \u4e0d\u8981\u4f7f\u7528\u8bf8\u5982<code>group<\/code> \u6216 <code>order<\/code> \u800c\u4e0d\u8fdb\u884c\u8f6c\u4e49\u3002<\/li>\n<\/ul>\n<p>\u82b1\u65f6\u95f4\u5236\u5b9a\u547d\u540d\u89c4\u8303\uff0c\u80fd\u5728\u51cf\u5c11\u8c03\u8bd5\u65f6\u95f4\u4ee5\u53ca\u4ee3\u7801\u5ba1\u67e5\u8fc7\u7a0b\u4e2d\u51cf\u5c11\u8bef\u89e3\u65b9\u9762\u5e26\u6765\u56de\u62a5\u3002<\/p>\n<h2>5. \u5916\u952e\u4f1a\u635f\u5bb3\u6027\u80fd \u26a1<\/h2>\n<p>\u4e00\u79cd\u666e\u904d\u7684\u8bef\u89e3\u8ba4\u4e3a\uff0c\u5916\u952e\u7ea6\u675f\u4f1a\u7ed9\u5199\u64cd\u4f5c\u5e26\u6765\u8fc7\u591a\u5f00\u9500\uff0c\u56e0\u6b64\u5e94\u88ab\u79fb\u9664\uff0c\u8f6c\u800c\u91c7\u7528\u5e94\u7528\u5c42\u9a8c\u8bc1\u3002\u867d\u7136\u7ea6\u675f\u786e\u5b9e\u4f1a\u589e\u52a0\u5904\u7406\u65f6\u95f4\uff0c\u4f46\u4e0e\u6570\u636e\u635f\u574f\u7684\u98ce\u9669\u76f8\u6bd4\uff0c\u8fd9\u79cd\u5f00\u9500\u901a\u5e38\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002<\/p>\n<p>\u5e94\u7528\u5c42\u9a8c\u8bc1\u5bb9\u6613\u53d7\u5230\u7ade\u4e89\u6761\u4ef6\u548c\u9519\u8bef\u7684\u5f71\u54cd\u3002\u800c\u6570\u636e\u5e93\u7ea6\u675f\u662f\u539f\u5b50\u6027\u7684\uff0c\u7531\u6570\u636e\u5e93\u5f15\u64ce\u672c\u8eab\u5f3a\u5236\u6267\u884c\u3002<\/p>\n<ul>\n<li><strong>\u5b8c\u6574\u6027\uff1a<\/strong> \u5916\u952e\u80fd\u81ea\u52a8\u9632\u6b62\u51fa\u73b0\u5b64\u7acb\u6570\u636e\u3002<\/li>\n<li><strong>\u4f18\u5316\uff1a<\/strong> \u73b0\u4ee3\u6570\u636e\u5e93\u5f15\u64ce\u4f1a\u57fa\u4e8e\u8fd9\u4e9b\u5173\u7cfb\u4f18\u5316\u8fde\u63a5\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u7ea7\u8054\uff1a<\/strong> <code>CASCADE<\/code> \u7ea7\u8054\u5220\u9664\u53ef\u5728\u65e0\u9700\u624b\u52a8\u6e05\u7406\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u7ba1\u7406\u590d\u6742\u5173\u7cfb\u3002<\/li>\n<\/ul>\n<p>\u4ec5\u5728\u7279\u5b9a\u7684\u9ad8\u541e\u5410\u91cf\u6279\u91cf\u52a0\u8f7d\u573a\u666f\u4e2d\u7981\u7528\u7ea6\u675f\uff0c\u6b64\u65f6\u6027\u80fd\u662f\u7edd\u5bf9\u74f6\u9888\uff0c\u4e14\u6570\u636e\u5b8c\u6574\u6027\u7531\u5916\u90e8\u7ba1\u7406\u3002\u5bf9\u4e8e\u6807\u51c6\u7684\u4e8b\u52a1\u578b\u7cfb\u7edf\uff0c\u5e94\u4fdd\u6301\u7ea6\u675f\u542f\u7528\u3002<\/p>\n<h2>6. ERD \u8bbe\u8ba1\u4ec5\u9002\u7528\u4e8e\u6570\u636e\u5e93\u7ba1\u7406\u5458 \ud83e\udd16<\/h2>\n<p>\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u5e38\u8ba4\u4e3a\u6a21\u5f0f\u8bbe\u8ba1\u662f\u522b\u4eba\u7684\u5de5\u4f5c\uff0c\u7279\u522b\u662f\u6570\u636e\u5e93\u7ba1\u7406\u5458\u7684\u5de5\u4f5c\u3002\u8fd9\u4f1a\u5728\u5e94\u7528\u903b\u8f91\u4e0e\u6570\u636e\u5b58\u50a8\u5c42\u4e4b\u95f4\u9020\u6210\u8131\u8282\u3002<\/p>\n<p>\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u4eba\u5458\u5fc5\u987b\u7406\u89e3\u6570\u636e\u6a21\u578b\uff0c\u56e0\u4e3a\u4ed6\u4eec\u7f16\u5199\u4e0e\u4e4b\u4ea4\u4e92\u7684\u67e5\u8be2\u3002\u5982\u679c\u6a21\u5f0f\u4e0e\u5e94\u7528\u7a0b\u5e8f\u903b\u8f91\u4e0d\u4e00\u81f4\uff0c\u4ee3\u7801\u5c31\u4f1a\u53d8\u5f97\u4f4e\u6548\u4e14\u8106\u5f31\u3002<\/p>\n<ul>\n<li><strong>\u534f\u4f5c\uff1a<\/strong>\u5f00\u53d1\u4eba\u5458\u548c\u6570\u636e\u5e93\u7ba1\u7406\u5458\u5e94\u5728\u8bbe\u8ba1\u9636\u6bb5\u65e9\u671f\u8fdb\u884c\u534f\u4f5c\u3002<\/li>\n<li><strong>\u4ee3\u7801\u751f\u6210\uff1a<\/strong>\u8bb8\u591aORM\uff08\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\u5668\uff09\u4e25\u91cd\u4f9d\u8d56ERD\u6765\u751f\u6210\u5b58\u50a8\u5e93\u7c7b\u3002<\/li>\n<li><strong>\u8c03\u8bd5\uff1a<\/strong>\u7406\u89e3\u5173\u7cfb\u6709\u52a9\u4e8e\u8bca\u65ad\u6162\u67e5\u8be2\u548c\u6570\u636e\u4e0d\u4e00\u81f4\u95ee\u9898\u3002<\/li>\n<\/ul>\n<p>\u6570\u636e\u6a21\u578b\u7684\u6240\u6709\u6743\u662f\u5171\u540c\u7684\u8d23\u4efb\u3002\u65e0\u8bba\u524d\u7aef\u8fd0\u884c\u5f97\u591a\u597d\uff0c\u4e00\u4e2a\u65e0\u6cd5\u9ad8\u6548\u8bbf\u95ee\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\u90fd\u662f\u5931\u8d25\u7684\u3002<\/p>\n<h2>7. \u4e00\u4e2a\u6a21\u5f0f\u9002\u7528\u4e8e\u6240\u6709\u7528\u4f8b \ud83d\udd04<\/h2>\n<p>\u6ca1\u6709\u4e00\u79cd\u5355\u4e00\u7684\u201c\u6700\u4f73\u201d\u6570\u636e\u5e93\u8bbe\u8ba1\u65b9\u6cd5\u3002\u4e3a\u793e\u4ea4\u5a92\u4f53\u52a8\u6001\u4f18\u5316\u7684\u6a21\u5f0f\u4e0e\u4e3a\u8d22\u52a1\u8d26\u672c\u8bbe\u8ba1\u7684\u6a21\u5f0f\u4f1a\u6709\u663e\u8457\u5dee\u5f02\u3002<\/p>\n<p>\u7406\u89e3\u8bbf\u95ee\u6a21\u5f0f\u6bd4\u9075\u5faa\u50f5\u5316\u7684\u6a21\u677f\u66f4\u4e3a\u91cd\u8981\u3002<\/p>\n<ul>\n<li><strong>\u8bfb\u53d6\u5bc6\u96c6\u578b\uff1a<\/strong>\u4f18\u5148\u8003\u8651\u53cd\u89c4\u8303\u5316\u548c\u7f13\u5b58\u7b56\u7565\u3002<\/li>\n<li><strong>\u5199\u5165\u5bc6\u96c6\u578b\uff1a<\/strong>\u4f18\u5148\u8003\u8651\u89c4\u8303\u5316\u548c\u4e25\u683c\u7684\u5b8c\u6574\u6027\u7ea6\u675f\u3002<\/li>\n<li><strong>\u590d\u6742\u67e5\u8be2\uff1a<\/strong> \u786e\u4fdd\u5728\u9891\u7e41\u7528\u4e8e<code>WHERE<\/code>\u5b50\u53e5\u4e2d\u7684\u5217\u4e0a\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<p>\u6bcf\u4e2a\u7cfb\u7edf\u90fd\u6709\u72ec\u7279\u7684\u9700\u6c42\u3002\u901a\u7528\u65b9\u6cd5\u901a\u5e38\u4f1a\u5bfc\u81f4\u4e00\u4e2a\u770b\u4f3c\u201c\u5c1a\u53ef\u201d\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4f46\u5728\u7279\u5b9a\u8d1f\u8f7d\u6761\u4ef6\u4e0b\u4f1a\u5931\u8d25\u3002\u5728\u6700\u7ec8\u786e\u5b9a\u7ed3\u6784\u4e4b\u524d\uff0c\u8bf7\u5206\u6790\u60a8\u7684\u5177\u4f53\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p>\n<h2>8. \u56fe\u8868\u5728\u6ca1\u6709\u5c5e\u6027\u7684\u60c5\u51b5\u4e0b\u4e5f\u662f\u5b8c\u6574\u7684 \ud83d\udcdd<\/h2>\n<p>\u5e38\u89c1\u7684\u60c5\u51b5\u662f\uff0c\u56fe\u8868\u5c55\u793a\u4e86\u5b9e\u4f53\u548c\u5173\u7cfb\uff0c\u4f46\u7f3a\u5c11\u8be6\u7ec6\u7684\u5c5e\u6027\u5b9a\u4e49\u3002\u4e00\u4e2a\u5b8c\u6574\u7684ERD\u5fc5\u987b\u660e\u786e\u6307\u5b9a\u6570\u636e\u7c7b\u578b\u3001\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u3002<\/p>\n<p>\u5982\u679c\u6ca1\u6709\u8fd9\u79cd\u8be6\u7ec6\u7a0b\u5ea6\uff0c\u56fe\u8868\u5c31\u53ea\u662f\u4e00\u4e2a\u8349\u56fe\uff0c\u65e0\u6cd5\u7528\u4e8e\u751f\u6210\u5b9e\u9645\u7684\u6570\u636e\u5e93\u8fc1\u79fb\u811a\u672c\u3002<\/p>\n<p>\u9700\u8981\u5b9a\u4e49\u7684\u5173\u952e\u5c5e\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6570\u636e\u7c7b\u578b\uff1a<\/strong>\u6574\u6570\u3001\u53ef\u53d8\u5b57\u7b26\u3001\u5e03\u5c14\u503c\u3001\u65f6\u95f4\u6233\u3002<\/li>\n<li><strong>\u7ea6\u675f\uff1a<\/strong>\u975e\u7a7a\u3001\u552f\u4e00\u3001\u9ed8\u8ba4\u503c\u3002<\/li>\n<li><strong>\u957f\u5ea6\uff1a<\/strong>\u5b57\u7b26\u4e32\u5b57\u6bb5\u7684\u5b57\u7b26\u9650\u5236\u3002<\/li>\n<li><strong>\u7d22\u5f15\uff1a<\/strong> \u54ea\u4e9b\u5b57\u6bb5\u9700\u8981\u641c\u7d22\u4f18\u5316\u3002<\/li>\n<\/ul>\n<p> \u7f3a\u5c11\u5c5e\u6027\u7ec6\u8282\u901a\u5e38\u4f1a\u5bfc\u81f4\u5b9e\u65bd\u9636\u6bb5\u7684\u6b67\u4e49\uff0c\u4ece\u800c\u5f15\u53d1\u4e34\u754c\u65f6\u523b\u7684\u66f4\u6539\u548c\u6f5c\u5728\u9519\u8bef\u3002<\/p>\n<h2>9. \u4e3b\u952e\u5fc5\u987b\u662f\u6574\u6570 \ud83d\udd22<\/h2>\n<p>\u867d\u7136\u81ea\u589e\u6574\u6570\u662f\u6700\u5e38\u89c1\u7684\u4e3b\u952e\u7b56\u7565\uff0c\u4f46\u5e76\u975e\u552f\u4e00\u9009\u62e9\u3002\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u6574\u6570\u4e3b\u952e\u53ef\u80fd\u5bfc\u81f4\u51b2\u7a81\u3002<\/p>\n<ul>\n<li><strong>UUID\uff1a<\/strong> \u5168\u5c40\u552f\u4e00\u6807\u8bc6\u7b26\u5bf9\u5fae\u670d\u52a1\u67b6\u6784\u5f88\u6709\u7528\u3002<\/li>\n<li><strong> \u590d\u5408\u952e\uff1a<\/strong> \u6709\u65f6\uff0c\u591a\u4e2a\u5217\u7684\u7ec4\u5408\u624d\u662f\u771f\u6b63\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n<li><strong> \u4ee3\u7406\u952e vs. \u81ea\u7136\u952e\uff1a<\/strong> \u4ee3\u7406\u952e\uff08\u751f\u6210\u7684\uff09\u5c06\u8eab\u4efd\u4e0e\u4e1a\u52a1\u903b\u8f91\u5206\u79bb\u3002<\/li>\n<\/ul>\n<p> \u9009\u62e9\u5408\u9002\u7684\u952e\u7c7b\u578b\u4f1a\u5f71\u54cd\u805a\u7c07\u3001\u7d22\u5f15\u548c\u5916\u952e\u6027\u80fd\u3002\u6574\u6570\u5728\u8fde\u63a5\u64cd\u4f5c\u4e2d\u901a\u5e38\u66f4\u5feb\uff0c\u4f46UUID\u5728\u5206\u7247\u73af\u5883\u4e2d\u63d0\u4f9b\u66f4\u597d\u7684\u5206\u5e03\u3002<\/p>\n<h2>10. ERD\u8bbe\u8ba1\u662f\u4e00\u6b21\u6027\u4efb\u52a1 \ud83d\udeab<\/h2>\n<p> \u8bbe\u8ba1\u5b8c\u6a21\u5f0f\u5c31\u4e0d\u7ba1\u4e86\u662f\u4e00\u79cd\u5371\u9669\u7684\u505a\u6cd5\u3002\u7cfb\u7edf\u4f1a\u53d8\u5316\uff0c\u6570\u636e\u9700\u6c42\u4e5f\u4f1a\u6f14\u53d8\u3002\u4e09\u5e74\u524d\u7684\u597d\u8bbe\u8ba1\u4eca\u5929\u53ef\u80fd\u6210\u4e3a\u8d1f\u62c5\u3002<\/p>\n<ul>\n<li><strong> \u5b9a\u671f\u5ba1\u8ba1\uff1a<\/strong> \u5b9a\u671f\u5ba1\u67e5\u6a21\u5f0f\uff0c\u67e5\u627e\u672a\u4f7f\u7528\u7684\u8868\u6216\u5217\u3002<\/li>\n<li><strong> \u7248\u672c\u63a7\u5236\uff1a<\/strong> \u5c06\u6a21\u5f0f\u53d8\u66f4\u89c6\u4e3a\u4ee3\u7801\u3002\u4f7f\u7528\u8fc1\u79fb\u5de5\u5177\u6765\u7ba1\u7406\u7248\u672c\u3002<\/li>\n<li><strong> \u53cd\u9988\u56de\u8def\uff1a<\/strong> \u542c\u53d6\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u6570\u636e\uff0c\u4ee5\u8bc6\u522b\u7ed3\u6784\u74f6\u9888\u3002<\/li>\n<\/ul>\n<p> \u7ef4\u62a4\u5065\u5eb7\u7684\u6570\u636e\u5e93\u9700\u8981\u6301\u7eed\u5173\u6ce8\u3002\u76f4\u5230\u6027\u80fd\u95ee\u9898\u51fa\u73b0\u624d\u5173\u6ce8\u6a21\u5f0f\u5065\u5eb7\u72b6\u51b5\u662f\u4e00\u79cd\u88ab\u52a8\u7b56\u7565\uff0c\u5e38\u5e38\u5bfc\u81f4\u4e2d\u65ad\u3002<\/p>\n<h2>11. \u590d\u6742\u5173\u7cfb\u603b\u662f\u4e0d\u597d\u7684 \ud83d\udeab<\/h2>\n<p>\u4e00\u4e9b\u5de5\u7a0b\u5e08\u5bb3\u6015\u590d\u6742\u5173\u7cfb\uff08\u5982\u9012\u5f52\u5173\u7cfb\u6216\u6df1\u5c42\u5c42\u7ea7\uff09\uff0c\u5e76\u8fc7\u4e8e\u6fc0\u8fdb\u5730\u5c06\u5176\u7b80\u5316\u3002\u867d\u7136\u7b80\u6d01\u662f\u597d\u4e8b\uff0c\u4f46\u8fc7\u5ea6\u7b80\u5316\u53ef\u80fd\u7834\u574f\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n<p>\u8003\u8651\u7ec4\u7ec7\u67b6\u6784\u56fe\u7684\u5c42\u7ea7\u7ed3\u6784\u3002\u4e00\u4e2a\u7ecf\u7406\u7ba1\u7406\u591a\u540d\u5458\u5de5\uff0c\u800c\u6bcf\u4e2a\u5458\u5de5\u7531\u4e00\u4e2a\u7ecf\u7406\u7ba1\u7406\u3002\u8fd9\u662f\u4e00\u79cd\u6807\u51c6\u7684\u9012\u5f52\u5173\u7cfb\u3002\u8bd5\u56fe\u5c06\u5176\u6241\u5e73\u5316\u4e3a\u5355\u4e2a\u8868\uff0c\u4f1a\u4f7f\u56e2\u961f\u7ed3\u6784\u7684\u62a5\u544a\u53d8\u5f97\u4e0d\u53ef\u80fd\u3002<\/p>\n<ul>\n<li><strong> \u9012\u5f52\u8868\uff1a<\/strong> \u9002\u7528\u4e8e\u5206\u7c7b\u3001\u8bc4\u8bba\u548c\u7ec4\u7ec7\u7ed3\u6784\u3002<\/li>\n<li><strong> \u90bb\u63a5\u5217\u8868\uff1a<\/strong> \u5b58\u50a8\u6811\u7ed3\u6784\u7684\u5e38\u89c1\u6a21\u5f0f\u3002<\/li>\n<li><strong> \u8def\u5f84\u679a\u4e3e\uff1a<\/strong> \u5b58\u50a8\u5b8c\u6574\u8def\u5f84\uff0c\u4ee5\u5728\u7279\u5b9a\u8bfb\u53d6\u573a\u666f\u4e0b\u5b9e\u73b0\u66f4\u5feb\u7684\u904d\u5386\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u6570\u636e\u6a21\u578b\u9700\u8981\u590d\u6742\u6027\uff0c\u5c31\u4e0d\u5fc5\u5bb3\u6015\u3002\u5e94\u4e13\u6ce8\u4e8e\u786e\u4fdd\u8fd9\u79cd\u590d\u6742\u6027\u5f97\u5230\u4e86\u5145\u5206\u7684\u6587\u6863\u8bb0\u5f55\uff0c\u5e76\u7531\u9002\u5f53\u7684\u7d22\u5f15\u652f\u6301\u3002<\/p>\n<h2>12. \u89c6\u56fe\u53d6\u4ee3\u4e86\u5bf9\u8868\u7684\u9700\u6c42 \ud83d\udcca<\/h2>\n<p>\u6709\u4e9b\u4eba\u8ba4\u4e3a\uff0c\u4e3a\u6bcf\u4e2a\u590d\u6742\u67e5\u8be2\u521b\u5efa\u89c6\u56fe\u5c31\u53ef\u4ee5\u6d88\u9664\u5bf9\u826f\u597d\u8bbe\u8ba1\u7684\u5e95\u5c42\u8868\u7ed3\u6784\u7684\u9700\u6c42\u3002\u89c6\u56fe\u662f\u6d3e\u751f\u6570\u636e\uff0c\u800c\u4e0d\u662f\u5b58\u50a8\u3002<\/p>\n<p>\u5c3d\u7ba1\u89c6\u56fe\u5728\u5b89\u5168\u6027\u548c\u62bd\u8c61\u65b9\u9762\u8868\u73b0\u4f18\u5f02\uff0c\u4f46\u5b83\u4eec\u65e0\u6cd5\u53d6\u4ee3\u57fa\u7840\u8868\u7684\u57fa\u672c\u89c4\u8303\u5316\u3002<\/p>\n<ul>\n<li><strong>\u5b58\u50a8\uff1a<\/strong>\u89c6\u56fe\u4e0d\u5b58\u50a8\u6570\u636e\uff1b\u5b83\u4eec\u67e5\u8be2\u6570\u636e\u3002<\/li>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u5982\u679c\u57fa\u7840\u8868\u672a\u7ecf\u8fc7\u4f18\u5316\uff0c\u590d\u6742\u7684\u89c6\u56fe\u53ef\u80fd\u4f1a\u8fd0\u884c\u7f13\u6162\u3002<\/li>\n<li><strong>\u7ef4\u62a4\uff1a<\/strong>\u4f9d\u8d56\u89c6\u56fe\u6765\u5b9e\u73b0\u4e1a\u52a1\u903b\u8f91\u4f1a\u9690\u85cf\u6570\u636e\u4f9d\u8d56\u5173\u7cfb\u3002<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u89c6\u56fe\u6765\u7b80\u5316\u8bbf\u95ee\uff0c\u4f46\u8981\u786e\u4fdd\u5e95\u5c42\u8868\u662f\u5065\u58ee\u4e14\u89c4\u8303\u5316\u7684\u3002<\/p>\n<h2>\u5173\u4e8e\u6a21\u5f0f\u5b8c\u6574\u6027\u7684\u6700\u540e\u601d\u8003 \ud83d\udca1<\/h2>\n<p>\u907f\u514d\u8fd9\u4e9b\u5e38\u89c1\u9677\u9631\u9700\u8981\u7ecf\u9a8c\u548c\u7eaa\u5f8b\u3002\u6ca1\u6709\u4e07\u80fd\u516c\u5f0f\uff0c\u4f46\u6709\u65e2\u5b9a\u7684\u539f\u5219\u53ef\u4ee5\u6307\u5bfc\u6709\u6548\u8bbe\u8ba1\u3002\u5e94\u4e13\u6ce8\u4e8e\u6e05\u6670\u6027\u3001\u4e00\u81f4\u6027\u548c\u4e0e\u4e1a\u52a1\u9700\u6c42\u7684\u5951\u5408\u3002<\/p>\n<p>\u5f53\u4f60\u9047\u5230\u65b0\u9700\u6c42\u65f6\uff0c\u505c\u4e0b\u6765\u8bc4\u4f30\u5b83\u5bf9\u73b0\u6709\u6a21\u578b\u7684\u5f71\u54cd\u3002\u5b83\u662f\u5426\u5f15\u5165\u4e86\u5197\u4f59\uff1f\u662f\u5426\u4f7f\u67e5\u8be2\u53d8\u5f97\u66f4\u590d\u6742\uff1f\u662f\u5426\u5bf9\u5b8c\u6574\u6027\u662f\u5fc5\u8981\u7684\uff1f<\/p>\n<p>\u901a\u8fc7\u9075\u5faa\u6b63\u786e\u7684\u539f\u5219\u5e76\u907f\u514d\u4e0a\u8ff0\u795e\u8bdd\uff0c\u521d\u7ea7\u5de5\u7a0b\u5e08\u53ef\u4ee5\u6210\u957f\u4e3a\u81ea\u4fe1\u7684\u6570\u636e\u67b6\u6784\u5e08\u3002\u6570\u636e\u5e93\u662f\u5e94\u7528\u7a0b\u5e8f\u7684\u57fa\u7840\u3002\u5e94\u4ee5\u5e94\u6709\u7684\u5c0a\u91cd\u5bf9\u5f85\u5b83\u3002<\/p>\n<p>\u8bb0\u5f97\u8bb0\u5f55\u4f60\u7684\u51b3\u7b56\u3002\u5982\u679c\u4f60\u9009\u62e9\u4e86\u67d0\u79cd\u7279\u5b9a\u7684\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u8bf7\u89e3\u91ca\u539f\u56e0\u3002\u8fd9\u79cd\u4e0a\u4e0b\u6587\u5bf9\u672a\u6765\u7684\u7ef4\u62a4\u8005\u6765\u8bf4\u6781\u4e3a\u5b9d\u8d35\u3002\u4e00\u4e2a\u6587\u6863\u5b8c\u5584\u7684\u6a21\u5f0f\u662f\u6210\u719f\u5de5\u7a0b\u6587\u5316\u7684\u6807\u5fd7\u3002<\/p>\n<p>\u7ee7\u7eed\u4ece\u751f\u4ea7\u6570\u636e\u4e2d\u5b66\u4e60\u3002\u76d1\u63a7\u67e5\u8be2\u6027\u80fd\uff0c\u5e76\u6839\u636e\u9700\u8981\u8c03\u6574\u6a21\u5f0f\u3002\u6700\u597d\u7684\u8bbe\u8ba1\u662f\u80fd\u591f\u9002\u5e94\u6570\u636e\u5b9e\u9645\u4f7f\u7528\u60c5\u51b5\u7684\u8bbe\u8ba1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bbe\u8ba1\u4e00\u4e2a\u7a33\u5065\u7684\u6570\u636e\u6a21\u578b\u662f\u540e\u7aef\u5de5\u7a0b\u5e08\u6216\u6570\u636e\u67b6\u6784\u5e08\u6700\u91cd\u8981\u7684\u6280\u80fd\u4e4b&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1655,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u4e3a\u521d\u7ea7\u5de5\u7a0b\u5e08\u7834\u9664\u8bef\u89e3 \ud83d\udee0\ufe0f","_yoast_wpseo_metadesc":"\u5728\u6570\u636e\u5e93\u5efa\u6a21\u4e0a\u611f\u5230\u56f0\u6270\u5417\uff1f\u4e86\u89e3\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u9047\u5230\u7684\u5e38\u89c1ERD\u8bef\u89e3\uff0c\u5e76\u5b66\u4e60\u5982\u4f55\u5728\u4e0d\u56f0\u60d1\u7684\u60c5\u51b5\u4e0b\u8bbe\u8ba1\u51fa\u7a33\u5065\u7684\u6a21\u5f0f\u3002","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[89],"tags":[84,88],"class_list":["post-1654","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-erd","tag-academic","tag-erd"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u4e3a\u521d\u7ea7\u5de5\u7a0b\u5e08\u7834\u9664\u8bef\u89e3 \ud83d\udee0\ufe0f<\/title>\n<meta name=\"description\" content=\"\u5728\u6570\u636e\u5e93\u5efa\u6a21\u4e0a\u611f\u5230\u56f0\u6270\u5417\uff1f\u4e86\u89e3\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u9047\u5230\u7684\u5e38\u89c1ERD\u8bef\u89e3\uff0c\u5e76\u5b66\u4e60\u5982\u4f55\u5728\u4e0d\u56f0\u60d1\u7684\u60c5\u51b5\u4e0b\u8bbe\u8ba1\u51fa\u7a33\u5065\u7684\u6a21\u5f0f\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u4e3a\u521d\u7ea7\u5de5\u7a0b\u5e08\u7834\u9664\u8bef\u89e3 \ud83d\udee0\ufe0f\" \/>\n<meta property=\"og:description\" content=\"\u5728\u6570\u636e\u5e93\u5efa\u6a21\u4e0a\u611f\u5230\u56f0\u6270\u5417\uff1f\u4e86\u89e3\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u9047\u5230\u7684\u5e38\u89c1ERD\u8bef\u89e3\uff0c\u5e76\u5b66\u4e60\u5982\u4f55\u5728\u4e0d\u56f0\u60d1\u7684\u60c5\u51b5\u4e0b\u8bbe\u8ba1\u51fa\u7a33\u5065\u7684\u6a21\u5f0f\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/\" \/>\n<meta property=\"og:site_name\" content=\"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-23T11:07:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1664\" \/>\n\t<meta property=\"og:image:height\" content=\"928\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"vpadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/#\/schema\/person\/26e014daa5bbdc9b97114eee89cc3936\"},\"headline\":\"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u7834\u89e3\u6bcf\u4f4d\u521d\u7ea7\u5de5\u7a0b\u5e08\u90fd\u4f1a\u9047\u5230\u7684\u8bef\u89e3\",\"datePublished\":\"2026-03-23T11:07:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/\"},\"wordCount\":24,\"publisher\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg\",\"keywords\":[\"academic\",\"erd\"],\"articleSection\":[\"ERD\"],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/\",\"url\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/\",\"name\":\"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u4e3a\u521d\u7ea7\u5de5\u7a0b\u5e08\u7834\u9664\u8bef\u89e3 \ud83d\udee0\ufe0f\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg\",\"datePublished\":\"2026-03-23T11:07:48+00:00\",\"description\":\"\u5728\u6570\u636e\u5e93\u5efa\u6a21\u4e0a\u611f\u5230\u56f0\u6270\u5417\uff1f\u4e86\u89e3\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u9047\u5230\u7684\u5e38\u89c1ERD\u8bef\u89e3\uff0c\u5e76\u5b66\u4e60\u5982\u4f55\u5728\u4e0d\u56f0\u60d1\u7684\u60c5\u51b5\u4e0b\u8bbe\u8ba1\u51fa\u7a33\u5065\u7684\u6a21\u5f0f\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage\",\"url\":\"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg\",\"contentUrl\":\"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg\",\"width\":1664,\"height\":928},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.viz-read.com\/cn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u7834\u89e3\u6bcf\u4f4d\u521d\u7ea7\u5de5\u7a0b\u5e08\u90fd\u4f1a\u9047\u5230\u7684\u8bef\u89e3\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/#website\",\"url\":\"https:\/\/www.viz-read.com\/cn\/\",\"name\":\"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.viz-read.com\/cn\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/#organization\",\"name\":\"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights\",\"url\":\"https:\/\/www.viz-read.com\/cn\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-cropped-viz-read-logo.png\",\"contentUrl\":\"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-cropped-viz-read-logo.png\",\"width\":1200,\"height\":1200,\"caption\":\"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights\"},\"image\":{\"@id\":\"https:\/\/www.viz-read.com\/cn\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.viz-read.com\/cn\/#\/schema\/person\/26e014daa5bbdc9b97114eee89cc3936\",\"name\":\"vpadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"caption\":\"vpadmin\"},\"sameAs\":[\"https:\/\/www.viz-read.com\"],\"url\":\"https:\/\/www.viz-read.com\/cn\/author\/vpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u4e3a\u521d\u7ea7\u5de5\u7a0b\u5e08\u7834\u9664\u8bef\u89e3 \ud83d\udee0\ufe0f","description":"\u5728\u6570\u636e\u5e93\u5efa\u6a21\u4e0a\u611f\u5230\u56f0\u6270\u5417\uff1f\u4e86\u89e3\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u9047\u5230\u7684\u5e38\u89c1ERD\u8bef\u89e3\uff0c\u5e76\u5b66\u4e60\u5982\u4f55\u5728\u4e0d\u56f0\u60d1\u7684\u60c5\u51b5\u4e0b\u8bbe\u8ba1\u51fa\u7a33\u5065\u7684\u6a21\u5f0f\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/","og_locale":"zh_CN","og_type":"article","og_title":"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u4e3a\u521d\u7ea7\u5de5\u7a0b\u5e08\u7834\u9664\u8bef\u89e3 \ud83d\udee0\ufe0f","og_description":"\u5728\u6570\u636e\u5e93\u5efa\u6a21\u4e0a\u611f\u5230\u56f0\u6270\u5417\uff1f\u4e86\u89e3\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u9047\u5230\u7684\u5e38\u89c1ERD\u8bef\u89e3\uff0c\u5e76\u5b66\u4e60\u5982\u4f55\u5728\u4e0d\u56f0\u60d1\u7684\u60c5\u51b5\u4e0b\u8bbe\u8ba1\u51fa\u7a33\u5065\u7684\u6a21\u5f0f\u3002","og_url":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/","og_site_name":"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights","article_published_time":"2026-03-23T11:07:48+00:00","og_image":[{"width":1664,"height":928,"url":"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg","type":"image\/jpeg"}],"author":"vpadmin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":false},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#article","isPartOf":{"@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/"},"author":{"name":"vpadmin","@id":"https:\/\/www.viz-read.com\/cn\/#\/schema\/person\/26e014daa5bbdc9b97114eee89cc3936"},"headline":"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u7834\u89e3\u6bcf\u4f4d\u521d\u7ea7\u5de5\u7a0b\u5e08\u90fd\u4f1a\u9047\u5230\u7684\u8bef\u89e3","datePublished":"2026-03-23T11:07:48+00:00","mainEntityOfPage":{"@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/"},"wordCount":24,"publisher":{"@id":"https:\/\/www.viz-read.com\/cn\/#organization"},"image":{"@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg","keywords":["academic","erd"],"articleSection":["ERD"],"inLanguage":"zh-Hans"},{"@type":"WebPage","@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/","url":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/","name":"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u4e3a\u521d\u7ea7\u5de5\u7a0b\u5e08\u7834\u9664\u8bef\u89e3 \ud83d\udee0\ufe0f","isPartOf":{"@id":"https:\/\/www.viz-read.com\/cn\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage"},"image":{"@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg","datePublished":"2026-03-23T11:07:48+00:00","description":"\u5728\u6570\u636e\u5e93\u5efa\u6a21\u4e0a\u611f\u5230\u56f0\u6270\u5417\uff1f\u4e86\u89e3\u521d\u7ea7\u5de5\u7a0b\u5e08\u5e38\u9047\u5230\u7684\u5e38\u89c1ERD\u8bef\u89e3\uff0c\u5e76\u5b66\u4e60\u5982\u4f55\u5728\u4e0d\u56f0\u60d1\u7684\u60c5\u51b5\u4e0b\u8bbe\u8ba1\u51fa\u7a33\u5065\u7684\u6a21\u5f0f\u3002","breadcrumb":{"@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/"]}]},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#primaryimage","url":"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg","contentUrl":"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/erd-myths-debunked-infographic-kawaii-cute-vector.jpg","width":1664,"height":928},{"@type":"BreadcrumbList","@id":"https:\/\/www.viz-read.com\/cn\/common-erd-confusion-debunking-myths\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.viz-read.com\/cn\/"},{"@type":"ListItem","position":2,"name":"\u5e38\u89c1\u7684ERD\u56f0\u60d1\uff1a\u7834\u89e3\u6bcf\u4f4d\u521d\u7ea7\u5de5\u7a0b\u5e08\u90fd\u4f1a\u9047\u5230\u7684\u8bef\u89e3"}]},{"@type":"WebSite","@id":"https:\/\/www.viz-read.com\/cn\/#website","url":"https:\/\/www.viz-read.com\/cn\/","name":"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights","description":"","publisher":{"@id":"https:\/\/www.viz-read.com\/cn\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.viz-read.com\/cn\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"zh-Hans"},{"@type":"Organization","@id":"https:\/\/www.viz-read.com\/cn\/#organization","name":"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights","url":"https:\/\/www.viz-read.com\/cn\/","logo":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.viz-read.com\/cn\/#\/schema\/logo\/image\/","url":"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-cropped-viz-read-logo.png","contentUrl":"https:\/\/www.viz-read.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-cropped-viz-read-logo.png","width":1200,"height":1200,"caption":"Viz Read Simplified Chinese - AI, Software &amp; Digital Insights"},"image":{"@id":"https:\/\/www.viz-read.com\/cn\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.viz-read.com\/cn\/#\/schema\/person\/26e014daa5bbdc9b97114eee89cc3936","name":"vpadmin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","caption":"vpadmin"},"sameAs":["https:\/\/www.viz-read.com"],"url":"https:\/\/www.viz-read.com\/cn\/author\/vpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/posts\/1654","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/comments?post=1654"}],"version-history":[{"count":0,"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/posts\/1654\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/media\/1655"}],"wp:attachment":[{"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/media?parent=1654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/categories?post=1654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.viz-read.com\/cn\/wp-json\/wp\/v2\/tags?post=1654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}