{"id":1526,"date":"2026-03-29T00:02:40","date_gmt":"2026-03-29T00:02:40","guid":{"rendered":"https:\/\/www.viz-read.com\/cn\/first-step-database-design-solid-erd\/"},"modified":"2026-03-29T00:02:40","modified_gmt":"2026-03-29T00:02:40","slug":"first-step-database-design-solid-erd","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/cn\/first-step-database-design-solid-erd\/","title":{"rendered":"\u6570\u636e\u5e93\u8bbe\u8ba1\u7684\u7b2c\u4e00\u6b65\uff1a\u5982\u4f55\u4ece\u4e00\u4e2a\u575a\u5b9e\u7684ERD\u5f00\u59cb"},"content":{"rendered":"<p>\u8bbe\u8ba1\u6570\u636e\u5e93\u66f4\u591a\u5728\u4e8e\u7406\u89e3\u5173\u7cfb\uff0c\u800c\u4e0d\u662f\u6572\u4ee3\u7801\u3002\u5728\u7f16\u5199\u4efb\u4f55\u811a\u672c\u4e4b\u524d\uff0c\u5fc5\u987b\u5efa\u7acb\u4e00\u4e2a\u89c6\u89c9\u57fa\u7840\u3002\u8fd9\u4e2a\u57fa\u7840\u5c31\u662f\u5b9e\u4f53-\u5173\u7cfb\u56fe\uff08\u901a\u5e38\u79f0\u4e3aERD\uff09\u3002\u8df3\u8fc7\u8fd9\u4e00\u6b65\uff0c\u76f8\u5f53\u4e8e\u5728\u6ca1\u6709\u84dd\u56fe\u7684\u60c5\u51b5\u4e0b\u5efa\u9020\u6469\u5929\u5927\u697c\u3002\u7ed3\u6784\u6216\u8bb8\u80fd\u652f\u6491\u4e00\u6bb5\u65f6\u95f4\uff0c\u4f46\u968f\u7740\u6570\u636e\u7684\u589e\u957f\uff0c\u95ee\u9898\u5c31\u4f1a\u66b4\u9732\u51fa\u6765\u3002\ud83e\uddf1<\/p>\n<p>\u672c\u6307\u5357\u5c06\u5e26\u4f60\u8d70\u8fc7\u6570\u636e\u5e93\u67b6\u6784\u7684\u521d\u59cb\u9636\u6bb5\u3002\u5b83\u805a\u7126\u4e8e\u521b\u5efa\u7a33\u5065\u6a21\u5f0f\u6240\u9700\u7684\u6982\u5ff5\u6a21\u578b\u548c\u903b\u8f91\u6a21\u578b\u3002\u65e0\u8bba\u4f60\u662f\u5728\u7ba1\u7406\u5ba2\u6237\u8bb0\u5f55\u3001\u5e93\u5b58\uff0c\u8fd8\u662f\u590d\u6742\u7684\u4e8b\u52a1\u6570\u636e\uff0c\u8fd9\u4e9b\u539f\u5219\u90fd\u662f\u4e00\u81f4\u7684\u3002\u6211\u4eec\u5c06\u63a2\u8ba8\u5b9e\u4f53\u3001\u5c5e\u6027\u3001\u5173\u7cfb\u548c\u57fa\u6570\uff0c\u800c\u65e0\u9700\u4f9d\u8d56\u7279\u5b9a\u5de5\u5177\u6216\u4e13\u6709\u8f6f\u4ef6\u3002\u76ee\u6807\u662f\u6784\u5efa\u4e00\u4e2a\u53ef\u6269\u5c55\u3001\u9ad8\u6548\u4e14\u6613\u4e8e\u7ef4\u62a4\u7684\u7cfb\u7edf\u3002\ud83d\ude80<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Hand-drawn infographic illustrating the 5-step process for creating a solid Entity-Relationship Diagram (ERD) in database design: identifying entities (Customer, Order, Product), defining attributes with primary keys, establishing relationships (1:1, 1:N, M:N) with crow's foot notation, specifying cardinality and modality constraints, and applying normalization principles (1NF, 2NF, 3NF). Visual elements include sketchy thick-outline illustrations, warning icons for common pitfalls like data redundancy and weak keys, and iterative design workflow symbols. Style: hand-drawn aesthetic with watercolor accents on white background, 16:9 aspect ratio, English labels for developers and database architects learning foundational schema design best practices.\" decoding=\"async\" src=\"https:\/\/www.viz-read.com\/wp-content\/uploads\/2026\/03\/erd-database-design-fundamentals-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\u7406\u89e3\u5b9e\u4f53-\u5173\u7cfb\u56fe 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\u8c01\u5728\u8d2d\u4e70\u6216\u4e92\u52a8\uff1f<\/li>\n<li><strong>\u8ba2\u5355\uff1a<\/strong> \u4ea4\u6613\u8bb0\u5f55\u3002<\/li>\n<li><strong>\u4ea7\u54c1\uff1a<\/strong> \u6b63\u5728\u9500\u552e\u7684\u5546\u54c1\u3002<\/li>\n<li><strong>\u5458\u5de5\uff1a<\/strong> \u8c01\u5728\u7ba1\u7406\u8fd9\u4e2a\u7cfb\u7edf\uff1f<\/li>\n<li><strong>\u4f4d\u7f6e\uff1a<\/strong> \u8d27\u7269\u53d1\u9001\u5230\u54ea\u91cc\uff1f<\/li>\n<\/ul>\n<h3>\u5b9e\u4f53\u547d\u540d\u89c4\u8303<\/h3>\n<p> 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customer_record<\/td>\n<\/tr>\n<tr>\n<td>\u5355\u590d\u6570<\/td>\n<td>\u8868\u540d\u4f7f\u7528\u5355\u6570<\/td>\n<td>\u4f7f\u7528<em>Customer<\/em>\uff0c\u800c\u4e0d\u662f<em>Customers<\/em><\/td>\n<\/tr>\n<tr>\n<td>\u6e05\u6670\u6027<\/td>\n<td>\u907f\u514d\u4f7f\u7528\u901a\u7528\u540d\u79f0<\/td>\n<td>\u4f7f\u7528<em>Invoice<\/em>\uff0c\u800c\u4e0d\u662f<em>Document<\/em><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u6b65\u9aa4 2\uff1a\u5b9a\u4e49\u5c5e\u6027 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