{"id":1714,"date":"2026-03-26T14:40:10","date_gmt":"2026-03-26T14:40:10","guid":{"rendered":"https:\/\/www.viz-read.com\/cn\/erd-in-action-production-backend-case-study\/"},"modified":"2026-03-26T14:40:10","modified_gmt":"2026-03-26T14:40:10","slug":"erd-in-action-production-backend-case-study","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/cn\/erd-in-action-production-backend-case-study\/","title":{"rendered":"ERD\u5b9e\u6218\uff1a\u6765\u81ea\u751f\u4ea7\u540e\u7aef\u7cfb\u7edf\u7684\u5b9e\u9645\u6848\u4f8b\u7814\u7a76"},"content":{"rendered":"<p>\u8bbe\u8ba1\u4e00\u4e2a\u7a33\u5065\u7684\u6570\u636e\u6a21\u578b\u4e0d\u4ec5\u4ec5\u662f\u4e00\u6b21\u5b66\u672f\u7ec3\u4e60\uff1b\u5b83\u662f\u5e94\u7528\u7a0b\u5e8f\u7a33\u5b9a\u6027\u7684\u57fa\u77f3\u3002\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\u662f\u751f\u4ea7\u73af\u5883\u4e2d\u4fe1\u606f\u5b58\u50a8\u3001\u5173\u8054\u548c\u68c0\u7d22\u65b9\u5f0f\u7684\u84dd\u56fe\u3002\u5f53\u7cfb\u7edf\u6269\u5c55\u65f6\uff0c\u4e0d\u826f\u5efa\u6a21\u7684\u6210\u672c\u5448\u6307\u6570\u7ea7\u589e\u957f\u3002\u672c\u6307\u5357\u63a2\u8ba8\u4e86\u5728\u590d\u6742\u540e\u7aef\u67b6\u6784\u4e2dERD\u7684\u5b9e\u9645\u5e94\u7528\uff0c\u91cd\u70b9\u5173\u6ce8\u6570\u636e\u5b8c\u6574\u6027\u3001\u53ef\u6269\u5c55\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<p>\u5f00\u53d1\u8005\u5e38\u5e38\u53ea\u5173\u6ce8\u5e94\u7528\u903b\u8f91\uff0c\u800c\u5c06\u6570\u636e\u5e93\u89c6\u4e3a\u6b21\u8981\u95ee\u9898\u3002\u7136\u800c\uff0c\u6570\u636e\u5e93\u6a21\u5f0f\u51b3\u5b9a\u4e86\u7cfb\u7edf\u80fd\u591f\u9ad8\u6548\u5b8c\u6210\u7684\u4efb\u52a1\u8fb9\u754c\u3002\u901a\u8fc7\u5206\u6790\u4e00\u4e2a\u771f\u5b9e\u573a\u666f\uff0c\u6211\u4eec\u53ef\u4ee5\u7406\u89e3\u5728\u6570\u636e\u89c4\u8303\u5316\u3001\u5173\u7cfb\u5904\u7406\u4ee5\u53ca\u786e\u4fdd\u5f15\u7528\u5b8c\u6574\u6027\u65f6\u6240\u6d89\u53ca\u7684\u6743\u8861\uff0c\u800c\u65e0\u9700\u4f9d\u8d56\u7279\u5b9a\u7684\u8f6f\u4ef6\u4f9b\u5e94\u5546\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Educational infographic illustrating Entity Relationship Diagram design for a production backend system, featuring five core entities (Organization, User, Project, Task, Audit Log) with rounded flat-design boxes in pastel colors, connected by relationship lines showing one-to-many and many-to-many cardinality, plus key best practices for data integrity, indexing, migrations, and multi-tenant security, all in a clean minimalist style with black outlines and ample white space\" decoding=\"async\" src=\"https:\/\/www.viz-read.com\/wp-content\/uploads\/2026\/03\/erd-production-backend-infographic-flat-design.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83d\udccb \u4e1a\u52a1\u573a\u666f<\/h2>\n<p>\u8bbe\u60f3\u4e00\u4e2a\u7528\u4e8e\u7ba1\u7406\u534f\u4f5c\u9879\u76ee\u7684\u591a\u79df\u6237\u670d\u52a1\u5e73\u53f0\u3002\u8be5\u7cfb\u7edf\u9700\u8981\u5728\u4e0d\u540c\u5ba2\u6237\u7ec4\u7ec7\u4e4b\u95f4\u5b9e\u73b0\u4e25\u683c\u7684\u9694\u79bb\uff0c\u540c\u65f6\u5728\u5404\u7ec4\u7ec7\u5185\u90e8\u4fdd\u6301\u7075\u6d3b\u6027\u3002\u6838\u5fc3\u9700\u6c42\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u591a\u79df\u6237\uff1a<\/strong>\u6570\u636e\u5fc5\u987b\u6309\u7ec4\u7ec7\u8fdb\u884c\u9694\u79bb\uff0c\u4ee5\u786e\u4fdd\u5b89\u5168\u3002<\/li>\n<li><strong>\u590d\u6742\u5de5\u4f5c\u6d41\uff1a<\/strong>\u4efb\u52a1\u5fc5\u987b\u88ab\u5206\u914d\u3001\u8ffd\u8e2a\uff0c\u5e76\u4e0e\u7279\u5b9a\u9879\u76ee\u5173\u8054\u3002<\/li>\n<li><strong>\u5ba1\u8ba1\u65e5\u5fd7\uff1a<\/strong>\u5bf9\u8bb0\u5f55\u7684\u6bcf\u4e00\u6b21\u91cd\u5927\u53d8\u66f4\u90fd\u5fc5\u987b\u8bb0\u5f55\uff0c\u4ee5\u6ee1\u8db3\u5408\u89c4\u8981\u6c42\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027\uff1a<\/strong>\u6a21\u5f0f\u5fc5\u987b\u652f\u6301\u6570\u767e\u4e07\u6761\u8bb0\u5f55\uff0c\u800c\u4e0d\u4f1a\u964d\u4f4e\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p>\u6311\u6218\u5728\u4e8e\u5c06\u8fd9\u4e9b\u4e1a\u52a1\u89c4\u5219\u8f6c\u5316\u4e3a\u4e00\u79cd\u5173\u7cfb\u7ed3\u6784\uff0c\u4ee5\u9632\u6b62\u6570\u636e\u5f02\u5e38\u3002\u4e00\u4e2a\u5e38\u89c1\u9519\u8bef\u662f\u521b\u5efa\u8fc7\u5ea6\u89c4\u8303\u5316\u7684\u7ed3\u6784\uff0c\u5bfc\u81f4\u9700\u8981\u8fc7\u591a\u7684\u8fde\u63a5\u64cd\u4f5c\uff1b\u6216\u8005\u521b\u5efa\u8fc7\u5ea6\u53cd\u89c4\u8303\u5316\u7684\u7ed3\u6784\uff0c\u5bfc\u81f4\u6570\u636e\u5197\u4f59\u548c\u66f4\u65b0\u5f02\u5e38\u3002<\/p>\n<h2>\ud83d\udd0d \u6838\u5fc3\u5b9e\u4f53\u4e0e\u5c5e\u6027<\/h2>\n<p>\u4efb\u4f55ERD\u7684\u652f\u67f1\u90fd\u662f\u5b9e\u4f53\u7684\u5b9a\u4e49\u3002\u5728\u6b64\u6848\u4f8b\u7814\u7a76\u4e2d\uff0c\u6211\u4eec\u8bc6\u522b\u51fa\u4e94\u4e2a\u4e3b\u8981\u5b9e\u4f53\u3002\u6bcf\u4e2a\u5b9e\u4f53\u4ee3\u8868\u4e00\u4e2a\u5fc5\u987b\u5728\u6570\u636e\u5e93\u4e2d\u6301\u4e45\u5316\u7684\u72ec\u7acb\u6982\u5ff5\u3002\u4e0e\u8fd9\u4e9b\u5b9e\u4f53\u76f8\u5173\u7684\u5c5e\u6027\u5b9a\u4e49\u4e86\u6240\u5b58\u50a8\u6570\u636e\u7684\u7c92\u5ea6\u3002<\/p>\n<h3>1. \u7ec4\u7ec7\u5b9e\u4f53<\/h3>\n<p>\u8fd9\u662f\u5c42\u7ea7\u7ed3\u6784\u7684\u6839\u3002\u5176\u4ed6\u6240\u6709\u8bb0\u5f55\u90fd\u4e0e\u8be5\u5b9e\u4f53\u5173\u8054\uff0c\u4ee5\u5f3a\u5236\u5b9e\u73b0\u79df\u6237\u9694\u79bb\u3002<\/p>\n<ul>\n<li><strong>\u7ec4\u7ec7ID\uff1a<\/strong>\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n<li><strong>\u7ec4\u7ec7\u540d\u79f0\uff1a<\/strong>\u53ef\u8bfb\u7684\u6807\u7b7e\u3002<\/li>\n<li><strong>\u8ba2\u9605\u5c42\u7ea7\uff1a<\/strong>\u51b3\u5b9a\u529f\u80fd\u8bbf\u95ee\u6743\u9650\u3002<\/li>\n<li><strong>\u521b\u5efa\u65f6\u95f4\uff1a<\/strong>\u7528\u4e8e\u5ba1\u8ba1\u7684\u65f6\u95f4\u6233\u3002<\/li>\n<\/ul>\n<h3>2. \u7528\u6237\u5b9e\u4f53<\/h3>\n<p>\u7528\u6237\u5c5e\u4e8e\u7ec4\u7ec7\uff0c\u4f46\u53ef\u4ee5\u662f\u591a\u4e2a\u9879\u76ee\u7684\u6210\u5458\u3002\u8ba4\u8bc1\u4fe1\u606f\u4e0e\u4e1a\u52a1\u6570\u636e\u5206\u79bb\uff0c\u4ee5\u9075\u5faa\u5b89\u5168\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n<ul>\n<li><strong>\u7528\u6237ID\uff1a<\/strong>\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n<li><strong>\u7535\u5b50\u90ae\u4ef6\uff1a<\/strong> \u7528\u4e8e\u8eab\u4efd\u9a8c\u8bc1\u548c\u8054\u7cfb\u3002<\/li>\n<li><strong>\u5bc6\u7801\u54c8\u5e0c\uff1a<\/strong> \u51ed\u636e\u7684\u5b89\u5168\u5b58\u50a8\u3002<\/li>\n<li><strong>\u89d2\u8272\uff1a<\/strong> \u5b9a\u4e49\u6743\u9650\uff08\u7ba1\u7406\u5458\u3001\u6210\u5458\u3001\u67e5\u770b\u8005\uff09\u3002<\/li>\n<\/ul>\n<h3>3. \u9879\u76ee\u5b9e\u4f53<\/h3>\n<p>\u9879\u76ee\u662f\u5de5\u4f5c\u9879\u7684\u5bb9\u5668\u3002\u5b83\u4eec\u7531\u7ec4\u7ec7\u6240\u6709\uff0c\u4f46\u7531\u7528\u6237\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<ul>\n<li><strong>\u9879\u76eeID\uff1a<\/strong> \u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n<li><strong>\u7ec4\u7ec7ID\uff1a<\/strong> \u5173\u8054\u5230\u7236\u79df\u6237\u7684\u5916\u952e\u3002<\/li>\n<li><strong>\u6807\u9898\uff1a<\/strong> \u9879\u76ee\u7684\u7b80\u77ed\u540d\u79f0\u3002<\/li>\n<li><strong>\u72b6\u6001\uff1a<\/strong> \u6d3b\u8dc3\u3001\u5b58\u6863\u6216\u5df2\u5220\u9664\u3002<\/li>\n<\/ul>\n<h3>4. \u4efb\u52a1\u5b9e\u4f53<\/h3>\n<p>\u5de5\u4f5c\u6838\u5fc3\u5355\u5143\u3002\u6b64\u5b9e\u4f53\u9700\u8981\u6700\u590d\u6742\u7684\u5173\u7cfb\uff0c\u56e0\u4e3a\u5b83\u8fde\u63a5\u4e86\u7528\u6237\u3001\u9879\u76ee\u548c\u65e5\u5fd7\u3002<\/p>\n<ul>\n<li><strong>\u4efb\u52a1ID\uff1a<\/strong> \u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n<li><strong>\u9879\u76eeID\uff1a<\/strong> \u5916\u952e\u3002<\/li>\n<li><strong>\u6307\u6d3e\u5bf9\u8c61ID\uff1a<\/strong> \u6307\u5411\u7528\u6237\u7684\u5916\u952e\u3002<\/li>\n<li><strong>\u622a\u6b62\u65e5\u671f\uff1a<\/strong> \u65f6\u95f4\u7ea6\u675f\u3002<\/li>\n<li><strong>\u4f18\u5148\u7ea7\uff1a<\/strong> \u679a\u4e3e\u503c\u3002<\/li>\n<\/ul>\n<h3>5. \u5ba1\u8ba1\u65e5\u5fd7\u5b9e\u4f53<\/h3>\n<p>\u8bb0\u5f55\u5bf9\u5173\u952e\u5b9e\u4f53\u6240\u505a\u7684\u6bcf\u4e00\u6b21\u66f4\u6539\u3002\u8fd9\u786e\u4fdd\u4e86\u53ef\u8ffd\u6eaf\u6027\u3002<\/p>\n<ul>\n<li><strong>\u65e5\u5fd7 ID\uff1a<\/strong> \u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n<li><strong>\u5b9e\u4f53\u7c7b\u578b\uff1a<\/strong> \u54ea\u4e2a\u8868\u53d7\u5230\u5f71\u54cd\u3002<\/li>\n<li><strong>\u8bb0\u5f55 ID\uff1a<\/strong> \u54ea\u4e00\u884c\u53d7\u5230\u5f71\u54cd\u3002<\/li>\n<li><strong>\u64cd\u4f5c\uff1a<\/strong> \u521b\u5efa\u3001\u66f4\u65b0\u3001\u5220\u9664\u3002<\/li>\n<li><strong>\u6267\u884c\u8005\uff1a<\/strong> \u7528\u6237 ID\u3002<\/li>\n<li><strong>\u65f6\u95f4\u6233\uff1a<\/strong> \u64cd\u4f5c\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udd17 \u5efa\u6a21\u5173\u7cfb\u4e0e\u57fa\u6570<\/h2>\n<p>\u5173\u7cfb\u5b9a\u4e49\u4e86\u5b9e\u4f53\u4e4b\u95f4\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002\u5728\u751f\u4ea7\u7cfb\u7edf\u4e2d\uff0c\u8fd9\u4e9b\u5173\u7cfb\u901a\u8fc7\u5916\u952e\u6765\u5f3a\u5236\u6267\u884c\u3002\u57fa\u6570\uff08\u4e00\u5bf9\u4e00\u3001\u4e00\u5bf9\u591a\u3001\u591a\u5bf9\u591a\uff09\u51b3\u5b9a\u4e86\u6570\u636e\u5982\u4f55\u88ab\u67e5\u8be2\u548c\u66f4\u65b0\u3002<\/p>\n<h3>\u7ec4\u7ec7\u5230\u7528\u6237<\/h3>\n<p>\u8fd9\u662f\u4e00\u4e2a <strong>\u4e00\u5bf9\u591a<\/strong> \u5173\u7cfb\u3002\u4e00\u4e2a\u7ec4\u7ec7\u53ef\u4ee5\u62e5\u6709\u591a\u4e2a\u7528\u6237\uff0c\u4f46\u4e3a\u4e86\u6570\u636e\u9694\u79bb\uff0c\u7528\u6237\u8bb0\u5f55\u53ea\u80fd\u5173\u8054\u5230\u4e00\u4e2a\u7ec4\u7ec7\u3002\u4e3a\u4e86\u9632\u6b62\u79df\u6237\u4e4b\u95f4\u7684\u6570\u636e\u6cc4\u9732\uff0c<code>organization_id<\/code> \u662f\u7528\u6237\u8868\u4e2d\u7684\u5f3a\u5236\u5916\u952e\u3002<\/p>\n<h3>\u7ec4\u7ec7\u5230\u9879\u76ee<\/h3>\n<p>\u540c\u6837\u5730\uff0c\u8fd9\u662f\u4e00\u4e2a <strong>\u4e00\u5bf9\u591a<\/strong> \u5173\u7cfb\u3002\u9879\u76ee\u4e0d\u80fd\u8131\u79bb\u7236\u7ec4\u7ec7\u800c\u5b58\u5728\u3002\u5982\u679c\u5220\u9664\u4e00\u4e2a\u7ec4\u7ec7\uff0c\u5fc5\u987b\u4ed4\u7ec6\u8003\u8651\u7ea7\u8054\u884c\u4e3a\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9009\u62e9\u8f6f\u5220\u9664\u9879\u76ee\u800c\u975e\u786c\u5220\u9664\uff0c\u4ee5\u4fdd\u7559\u5386\u53f2\u4e0a\u4e0b\u6587\u3002<\/p>\n<h3>\u9879\u76ee\u5230\u4efb\u52a1<\/h3>\n<p>\u53e6\u4e00\u4e2a <strong>\u4e00\u5bf9\u591a<\/strong> \u5173\u7cfb\u3002\u4e00\u4e2a\u9879\u76ee\u5305\u542b\u591a\u4e2a\u4efb\u52a1\uff0c\u800c\u4e00\u4e2a\u4efb\u52a1\u53ea\u80fd\u5c5e\u4e8e\u4e00\u4e2a\u9879\u76ee\u3002\u8fd9\u662f\u4e00\u79cd\u6807\u51c6\u7684\u7ed3\u6784\u94fe\u63a5\u3002<\/p>\n<h3>\u7528\u6237\u5230\u4efb\u52a1\uff08\u5206\u914d\uff09<\/h3>\n<p>\u8fd9\u662f\u6700\u5173\u952e\u7684\u5173\u7cfb\u3002\u4e00\u4e2a\u7528\u6237\u53ef\u4ee5\u88ab\u5206\u914d\u591a\u4e2a\u4efb\u52a1\uff0c\u800c\u4e00\u4e2a\u4efb\u52a1\u4e5f\u53ef\u4ee5\u5206\u914d\u7ed9\u591a\u4e2a\u7528\u6237\uff08\u534f\u4f5c\u5de5\u4f5c\uff09\u3002\u8fd9\u9700\u8981\u4e00\u4e2a <strong>\u591a\u5bf9\u591a<\/strong> \u5173\u7cfb\u3002<\/p>\n<p>\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u6211\u4eec\u5f15\u5165\u4e00\u4e2a\u8fde\u63a5\u8868\uff0c\u901a\u5e38\u79f0\u4e3a\u5173\u8054\u5b9e\u4f53\u3002\u8be5\u8868\u5c06\u591a\u5bf9\u591a\u5173\u7cfb\u62c6\u5206\u4e3a\u4e24\u4e2a\u4e00\u5bf9\u591a\u5173\u7cfb\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8868\u540d<\/th>\n<th>\u7528\u9014<\/th>\n<th>\u952e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u4efb\u52a1\u5206\u914d\u8005<\/strong><\/td>\n<td>\u5c06\u7528\u6237\u4e0e\u4efb\u52a1\u5173\u8054<\/td>\n<td>\u4efb\u52a1ID\uff0c\u7528\u6237ID<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7ec4\u7ec7\u79df\u6237<\/strong><\/td>\n<td>\u5c06\u7ec4\u7ec7\u4e0e\u7528\u6237\u5173\u8054<\/td>\n<td>\u7ec4\u7ec7ID\uff0c\u7528\u6237ID<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f7f\u7528\u8fde\u63a5\u8868\u4f7f\u6211\u4eec\u80fd\u591f\u5b58\u50a8\u989d\u5916\u7684\u5143\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5728 <code>\u4efb\u52a1\u5206\u914d\u8005<\/code> \u8868\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5b58\u50a8\u8be5\u7528\u6237\u5728\u7279\u5b9a\u4efb\u52a1\u4e2d\u7684\u89d2\u8272\uff08\u4f8b\u5982\uff0c\u8d1f\u8d23\u4eba\u3001\u8d21\u732e\u8005\uff09\uff0c\u8fd9\u4e0e\u4ed6\u4eec\u7684\u5168\u5c40\u7528\u6237\u89d2\u8272\u4e0d\u540c\u3002<\/p>\n<h2>\u2696\ufe0f \u7ea6\u675f\u4e0e\u6570\u636e\u5b8c\u6574\u6027<\/h2>\n<p>\u5e94\u7528\u5c42\u9a8c\u8bc1\u662f\u4e0d\u591f\u7684\u3002\u6570\u636e\u5e93\u7ea6\u675f\u662f\u9632\u6b62\u6570\u636e\u635f\u574f\u7684\u6700\u540e\u4e00\u9053\u9632\u7ebf\u3002\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u7ea6\u675f\u5e94\u5728\u6a21\u5f0f\u7ea7\u522b\u5b9a\u4e49\u3002<\/p>\n<h3>\u5f15\u7528\u5b8c\u6574\u6027<\/h3>\n<p>\u5916\u952e\u786e\u4fdd\u5b50\u8868\u4e2d\u7684\u8bb0\u5f55\u4e0d\u80fd\u5f15\u7528\u4e0d\u5b58\u5728\u7684\u7236\u8bb0\u5f55\u3002\u4f8b\u5982\uff0c\u4efb\u52a1\u4e0d\u80fd\u5206\u914d\u7ed9\u7cfb\u7edf\u4e2d\u4e0d\u5b58\u5728\u7684\u7528\u6237\u3002<\/p>\n<p>\u7136\u800c\uff0c<strong>ON DELETE<\/strong> \u548c <strong>ON UPDATE<\/strong> \u884c\u4e3a\u662f\u5173\u952e\u51b3\u7b56\uff1a<\/p>\n<ul>\n<li><strong>\u7ea7\u8054\uff08CASCADE\uff09\uff1a<\/strong> \u5982\u679c\u5220\u9664\u7236\u8bb0\u5f55\uff0c\u6240\u6709\u5b50\u8bb0\u5f55\u4e5f\u4f1a\u88ab\u5220\u9664\u3002\u5f53\u5b50\u6570\u636e\u5728\u6ca1\u6709\u7236\u6570\u636e\u65f6\u6beb\u65e0\u610f\u4e49\u65f6\u4f7f\u7528\uff08\u4f8b\u5982\uff0c\u5df2\u5220\u9664\u5e16\u5b50\u7684\u8bc4\u8bba\uff09\u3002<\/li>\n<li><strong>\u9650\u5236\uff08RESTRICT\uff09\uff1a<\/strong> \u5982\u679c\u5b58\u5728\u5b50\u8bb0\u5f55\uff0c\u5219\u963b\u6b62\u5220\u9664\u3002\u7528\u4e8e\u9632\u6b62\u610f\u5916\u7684\u6570\u636e\u4e22\u5931\uff08\u4f8b\u5982\uff0c\u5220\u9664\u5177\u6709\u6d3b\u8dc3\u8d26\u5355\u8bb0\u5f55\u7684\u7ec4\u7ec7\uff09\u3002<\/li>\n<li><strong>\u8bbe\u4e3a\u7a7a\uff08SET NULL\uff09\uff1a<\/strong> \u5982\u679c\u7236\u8bb0\u5f55\u88ab\u5220\u9664\uff0c\u5b50\u8868\u4e2d\u7684\u5916\u952e\u5217\u5c06\u53d8\u4e3a NULL\u3002\u5f53\u5173\u7cfb\u662f\u53ef\u9009\u65f6\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h3>\u68c0\u67e5\u7ea6\u675f<\/h3>\n<p>\u6807\u51c6SQL\u652f\u6301\u68c0\u67e5\u7ea6\u675f\u4ee5\u5f3a\u5236\u6267\u884c\u7279\u5b9a\u9886\u57df\u7684\u89c4\u5219\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u622a\u6b62\u65e5\u671f\uff1a<\/strong> \u8be5 <code>due_date<\/code> \u5217\u5fc5\u987b\u5927\u4e8e <code>created_at<\/code> \u5217\u3002<\/li>\n<li><strong>\u4f18\u5148\u7ea7\uff1a<\/strong> \u8be5 <code>priority<\/code> \u5217\u5fc5\u987b\u5339\u914d\u4e00\u7ec4\u7279\u5b9a\u7684\u5141\u8bb8\u503c\uff08\u4f8b\u5982\uff1a\u4f4e\u3001\u4e2d\u3001\u9ad8\uff09\u3002<\/li>\n<li><strong>\u91d1\u989d\uff1a<\/strong> \u8d22\u52a1\u5b57\u6bb5\u5fc5\u987b\u4e3a\u975e\u8d1f\u6570\u3002<\/li>\n<\/ul>\n<h3>\u552f\u4e00\u6027\u7ea6\u675f<\/h3>\n<p>\u5728\u9700\u8981\u65f6\u786e\u4fdd\u6570\u636e\u7684\u552f\u4e00\u6027\u3002\u4f8b\u5982\uff0c\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u5728\u6574\u4e2a\u7cfb\u7edf\u4e2d\u5fc5\u987b\u552f\u4e00\uff0c\u6216\u8005\u6839\u636e\u7528\u6237\u6a21\u578b\u5728\u7279\u5b9a\u7ec4\u7ec7\u5185\u552f\u4e00\u3002\u590d\u5408\u552f\u4e00\u6027\u7ea6\u675f\u53ef\u786e\u4fdd\u4e00\u4e2a\u7528\u6237\u4ec5\u88ab\u5206\u914d\u5230\u67d0\u4e2a\u9879\u76ee\u4e00\u6b21\uff08\u9632\u6b62\u91cd\u590d\u5206\u914d\uff09\u3002<\/p>\n<h2>\ud83d\ude80 \u6027\u80fd\u4e0e\u7d22\u5f15\u7b56\u7565<\/h2>\n<p>\u5982\u679c\u67e5\u8be2\u901f\u5ea6\u6162\uff0c\u8bbe\u8ba1\u826f\u597d\u7684\u6a21\u5f0f\u4e5f\u662f\u65e0\u7528\u7684\u3002\u7d22\u5f15\u662f\u4f7f\u6570\u636e\u5e93\u80fd\u591f\u5feb\u901f\u67e5\u627e\u6570\u636e\u7684\u673a\u5236\u3002\u7136\u800c\uff0c\u7d22\u5f15\u5728\u5199\u5165\u6027\u80fd\u548c\u5b58\u50a8\u65b9\u9762\u4f1a\u5e26\u6765\u6210\u672c\u3002<\/p>\n<h3>\u8bc6\u522b\u67e5\u8be2\u6a21\u5f0f<\/h3>\n<p>\u521b\u5efa\u7d22\u5f15\u4e4b\u524d\uff0c\u5e94\u5206\u6790\u6700\u5e38\u89c1\u7684\u8bfb\u53d6\u64cd\u4f5c\u3002\u5728\u6211\u4eec\u7684\u6848\u4f8b\u7814\u7a76\u4e2d\uff0c\u5178\u578b\u7684\u67e5\u8be2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u67e5\u627e\u5206\u914d\u7ed9\u7279\u5b9a\u7528\u6237\u7684\u5168\u90e8\u4efb\u52a1\u3002<\/li>\n<li>\u67e5\u627e\u7ec4\u7ec7\u5185\u7684\u6240\u6709\u9879\u76ee\u3002<\/li>\n<li>\u68c0\u7d22\u7279\u5b9a\u5b9e\u4f53ID\u7684\u5ba1\u8ba1\u65e5\u5fd7\u3002<\/li>\n<\/ul>\n<h3>\u7d22\u5f15\u4f4d\u7f6e<\/h3>\n<p>\u5916\u952e\u662f\u6700\u5e38\u89c1\u7684\u7d22\u5f15\u5019\u9009\u5bf9\u8c61\u3002\u5982\u679c\u67e5\u8be2\u7ecf\u5e38\u6309 <code>organization_id<\/code>\u8fdb\u884c\u8fc7\u6ee4\uff0c\u8be5\u5217\u4e0a\u7684\u7d22\u5f15\u662f\u5fc5\u9700\u7684\u3002\u5982\u679c\u6ca1\u6709\u5b83\uff0c\u6570\u636e\u5e93\u5c06\u6267\u884c\u5168\u8868\u626b\u63cf\uff0c\u968f\u7740\u6570\u636e\u589e\u957f\uff0c\u6027\u80fd\u4f1a\u8fc5\u901f\u4e0b\u964d\u3002<\/p>\n<p>\u590d\u5408\u7d22\u5f15\u9002\u7528\u4e8e\u5728\u591a\u4e2a\u5217\u4e0a\u8fdb\u884c\u8fc7\u6ee4\u7684\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u5982\u679c\u7cfb\u7edf\u7ecf\u5e38\u6839\u636e <code>project_id<\/code> \u548c <code>\u72b6\u6001<\/code>\uff0c\u5728 (project_id, status) \u4e0a\u521b\u5efa\u590d\u5408\u7d22\u5f15\u6bd4\u521b\u5efa\u4e24\u4e2a\u72ec\u7acb\u7d22\u5f15\u66f4\u9ad8\u6548\u3002<\/p>\n<h3>\u90e8\u5206\u7d22\u5f15<\/h3>\n<p>\u5728\u4ec5\u9891\u7e41\u67e5\u8be2\u6570\u636e\u5b50\u96c6\u7684\u573a\u666f\u4e2d\uff0c\u90e8\u5206\u7d22\u5f15\u53ef\u4ee5\u8282\u7701\u7a7a\u95f4\u3002\u4f8b\u5982\uff0c\u5982\u679c\u7cfb\u7edf\u4ec5\u67e5\u8be2 <strong>\u6d3b\u8dc3<\/strong> \u4efb\u52a1\u65f6\uff0c\u4ec5\u5305\u542b\u6ee1\u8db3\u6761\u4ef6\u7684\u884c\u7684\u7d22\u5f15\uff0c\u6bd4\u5728\u6574\u4e2a\u8868\u4e0a\u5efa\u7acb\u7d22\u5f15\u8981\u5c0f\u5f97\u591a\uff0c\u4e14\u904d\u5386\u901f\u5ea6\u66f4\u5feb\u3002<code>status = 'Active'<\/code> \u53ef\u4ee5\u663e\u8457\u66f4\u5c0f\uff0c\u4e14\u904d\u5386\u901f\u5ea6\u66f4\u5feb\uff0c\u8fdc\u4f18\u4e8e\u5728\u6574\u4e2a\u8868\u4e0a\u5efa\u7acb\u7684\u7d22\u5f15\u3002<\/p>\n<h2>\ud83d\udee0\ufe0f \u7ef4\u62a4\u4e0e\u6a21\u5f0f\u6f14\u8fdb<\/h2>\n<p>\u8f6f\u4ef6\u9700\u6c42\u4f1a\u53d8\u5316\uff0c\u6570\u636e\u5e93\u6a21\u5f0f\u4e5f\u4e0d\u4f8b\u5916\u3002\u4ece\u7248\u672c A \u8fc1\u79fb\u5230\u7248\u672c B \u9700\u8981\u4ed4\u7ec6\u89c4\u5212\uff0c\u4ee5\u907f\u514d\u505c\u673a\u548c\u6570\u636e\u4e22\u5931\u3002\u8fd9\u4e00\u8fc7\u7a0b\u901a\u5e38\u901a\u8fc7\u8fc1\u79fb\u811a\u672c\u6765\u7ba1\u7406\u3002<\/p>\n<h3>\u6dfb\u52a0\u5217<\/h3>\n<p>\u6dfb\u52a0\u65b0\u5217\u901a\u5e38\u5f88\u5b89\u5168\u3002\u5982\u679c\u8be5\u5217\u5141\u8bb8\u4e3a\u7a7a\u503c\uff0c\u5219\u73b0\u6709\u884c\u4e0d\u53d7\u5f71\u54cd\u3002\u5982\u679c\u8be5\u5217\u9700\u8981\u9ed8\u8ba4\u503c\uff0c\u8bf7\u786e\u4fdd\u9ed8\u8ba4\u503c\u9002\u7528\u4e8e\u6240\u6709\u73b0\u6709\u6570\u636e\uff0c\u4ee5\u907f\u514d\u8fdd\u53cd\u7ea6\u675f\u3002<\/p>\n<h3>\u5220\u9664\u5217<\/h3>\n<p>\u5220\u9664\u5217\u5b58\u5728\u98ce\u9669\u3002\u6700\u597d\u5148\u5c06\u8be5\u5217\u6807\u8bb0\u4e3a\u5df2\u5f03\u7528\u3002\u8fd9\u6837\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728\u7269\u7406\u4ece\u6570\u636e\u5e93\u4e2d\u5220\u9664\u8be5\u5217\u4e4b\u524d\uff0c\u5148\u5728\u5e94\u7528\u4ee3\u7801\u4e2d\u79fb\u9664\u5bf9\u8be5\u5217\u7684\u5f15\u7528\u3002\u8fd9\u79cd\u4e24\u9636\u6bb5\u65b9\u6cd5\u53ef\u9632\u6b62\u5728\u90e8\u7f72\u7a97\u53e3\u671f\u95f4\u51fa\u73b0\u5e94\u7528\u9519\u8bef\u3002<\/p>\n<h3>\u91cd\u547d\u540d\u5217<\/h3>\n<p>\u5728\u65e7\u7248\u672c\u6570\u636e\u5e93\u4e2d\uff0c\u901a\u5e38\u65e0\u6cd5\u76f4\u63a5\u91cd\u547d\u540d\u5217\uff0c\u9664\u975e\u4f7f\u7528\u590d\u6742\u7684\u53d8\u901a\u65b9\u6cd5\u3002\u901a\u5e38\u66f4\u597d\u7684\u505a\u6cd5\u662f\u6dfb\u52a0\u4e00\u4e2a\u5177\u6709\u6240\u9700\u540d\u79f0\u7684\u65b0\u5217\uff0c\u8fc1\u79fb\u6570\u636e\uff0c\u7136\u540e\u5220\u9664\u65e7\u5217\u3002\u8fd9\u53ef\u4ee5\u786e\u4fdd\u5728\u8f6c\u6362\u8fc7\u7a0b\u4e2d\u6a21\u5f0f\u4fdd\u6301\u5411\u540e\u517c\u5bb9\u3002<\/p>\n<h2>\ud83d\udea7 ERD \u8bbe\u8ba1\u4e2d\u7684\u5e38\u89c1\u9677\u9631<\/h2>\n<p>\u5373\u4f7f\u662f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u67b6\u6784\u5e08\u4e5f\u4f1a\u72af\u9519\u3002\u4e86\u89e3\u5e38\u89c1\u9677\u9631\u6709\u52a9\u4e8e\u5728\u8bbe\u8ba1\u9636\u6bb5\u907f\u514d\u5b83\u4eec\u3002<\/p>\n<ul>\n<li><strong>\u8fc7\u5ea6\u89c4\u8303\u5316\uff1a<\/strong>\u5c06\u6570\u636e\u62c6\u5206\u4e3a\u8fc7\u591a\u7684\u5c0f\u8868\u4f1a\u4f7f\u67e5\u8be2\u53d8\u5f97\u590d\u6742\u4e14\u7f13\u6162\u3002\u5e94\u5e73\u8861\u89c4\u8303\u5316\u4e0e\u67e5\u8be2\u6027\u80fd\u9700\u6c42\u3002<\/li>\n<li><strong>\u89c4\u8303\u5316\u4e0d\u8db3\uff1a<\/strong>\u5c06\u76f8\u540c\u7684\u6570\u636e\u5b58\u50a8\u5728\u591a\u4e2a\u4f4d\u7f6e\uff08\u4f8b\u5982\uff0c\u5728\u6bcf\u4e2a\u4efb\u52a1\u65e5\u5fd7\u4e2d\u91cd\u590d\u7528\u6237\u59d3\u540d\uff09\u4f1a\u5bfc\u81f4\u66f4\u65b0\u5f02\u5e38\u3002\u5982\u679c\u7528\u6237\u66f4\u6539\u59d3\u540d\uff0c\u5fc5\u987b\u66f4\u65b0\u6bcf\u4e2a\u65e5\u5fd7\u6761\u76ee\u3002<\/li>\n<li><strong>\u5faa\u73af\u4f9d\u8d56\uff1a<\/strong> \u521b\u5efa\u5faa\u73af\u7684\u5916\u952e\u5173\u7cfb\u53ef\u80fd\u5bfc\u81f4\u63d2\u5165\u6216\u5220\u9664\u65f6\u53d1\u751f\u6b7b\u9501\u3002\u786e\u4fdd\u4f9d\u8d56\u5173\u7cfb\u56fe\u662f\u65e0\u73af\u6709\u5411\u56fe\uff08DAG\uff09\u3002<\/li>\n<li><strong>\u5ffd\u7565\u8f6f\u5220\u9664\uff1a<\/strong> \u786c\u5220\u9664\u8bb0\u5f55\u4f1a\u5220\u9664\u5386\u53f2\u8bb0\u5f55\u3002\u5e94\u5b9e\u73b0\u4e00\u4e2a <code>deleted_at<\/code> \u65f6\u95f4\u6233\u5217\uff0c\u4ee5\u5728\u4fdd\u7559\u8bb0\u5f55\u53ef\u5ba1\u8ba1\u6027\u7684\u540c\u65f6\uff0c\u5c06\u5176\u4ece\u6807\u51c6\u89c6\u56fe\u4e2d\u9690\u85cf\u3002<\/li>\n<li><strong>\u9690\u5f0f\u6570\u636e\u7c7b\u578b\uff1a<\/strong> \u4f7f\u7528\u901a\u7528\u7c7b\u578b\uff0c\u4f8b\u5982 <code>VARCHAR(255)<\/code> \u4f1a\u6d6a\u8d39\u7a7a\u95f4\u3002\u5e94\u4f7f\u7528 <code>INT<\/code> \u4f5c\u4e3a ID\uff0c<code>BOOLEAN<\/code> \u4f5c\u4e3a\u6807\u5fd7\u4f4d\uff0c\u4ee5\u53ca\u5728\u9002\u5f53\u60c5\u51b5\u4e0b\u5bf9\u5b57\u7b26\u4e32\u4f7f\u7528\u7279\u5b9a\u957f\u5ea6\u9650\u5236\u3002<\/li>\n<\/ul>\n<h2>\u2705 \u751f\u4ea7\u73af\u5883 ERD \u7684\u6700\u4f73\u5b9e\u8df5<\/h2>\n<p>\u4e3a\u786e\u4fdd\u7cfb\u7edf\u7684\u957f\u671f\u7a33\u5b9a\u4e0e\u5065\u5eb7\uff0c\u8bf7\u9075\u5faa\u4ee5\u4e0b\u6307\u5357\uff1a<\/p>\n<ol>\n<li><strong>\u8bb0\u5f55\u5173\u7cfb\uff1a<\/strong> ERD \u672c\u8eab\u5373\u662f\u6587\u6863\u3002\u8bf7\u786e\u4fdd\u5176\u4e0e\u5b9e\u9645\u7684\u6570\u636e\u5e93\u6a21\u5f0f\u4fdd\u6301\u540c\u6b65\u3002\u81ea\u52a8\u5316\u5de5\u5177\u53ef\u4ee5\u4ece\u6570\u636e\u5e93\u751f\u6210\u56fe\u8868\u4ee5\u9a8c\u8bc1\u51c6\u786e\u6027\u3002<\/li>\n<li><strong>\u6807\u51c6\u5316\u547d\u540d\u89c4\u8303\uff1a<\/strong> \u4f7f\u7528 <code>snake_case<\/code> \u4f5c\u4e3a\u8868\u548c\u5217\u7684\u547d\u540d\u3002\u5916\u952e\u524d\u7f00\u5e94\u4f7f\u7528\u5173\u7cfb\u540d\u79f0\uff08\u4f8b\u5982\uff0c<code>organization_id<\/code> \u800c\u975e\u4ec5\u4f7f\u7528 <code>org_id<\/code>\uff09\u4ee5\u63d0\u9ad8\u6e05\u6670\u5ea6\u3002<\/li>\n<li><strong>\u4f7f\u7528 UUID \u4e0e\u81ea\u589e ID\uff1a<\/strong> \u5bf9\u4e8e\u5206\u5e03\u5f0f\u7cfb\u7edf\uff0cUUID \u53ef\u907f\u514d\u5408\u5e76\u6570\u636e\u5e93\u65f6\u7684\u51b2\u7a81\u95ee\u9898\u3002\u5bf9\u4e8e\u5355\u5b9e\u4f8b\u7cfb\u7edf\uff0c\u81ea\u589e\u6574\u6570\u66f4\u7d27\u51d1\u4e14\u66f4\u5feb\u3002<\/li>\n<li><strong>\u4e3a\u589e\u957f\u505a\u597d\u89c4\u5212\uff1a<\/strong> \u8bbe\u8ba1\u65f6\u9700\u8003\u8651\u5206\u7247\u3002\u5982\u679c\u9884\u8ba1\u67d0\u5f20\u8868\u5c06\u589e\u957f\u5230\u6570\u5341\u4ebf\u884c\uff0c\u8bf7\u8003\u8651\u5982\u4f55\u6839\u636e <code>organization_id<\/code>.<\/li>\n<li><strong>\u5ba1\u67e5\u8bbf\u95ee\u6a21\u5f0f\uff1a<\/strong> \u5b9a\u671f\u5ba1\u67e5\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u4ee5\u8bc6\u522b\u7f3a\u5931\u7684\u7d22\u5f15\u6216\u4f4e\u6548\u7684\u8fde\u63a5\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n<h2>\ud83d\udd04 \u6a21\u5f0f\u751f\u547d\u5468\u671f<\/h2>\n<p>ERD \u4e0d\u662f\u9759\u6001\u6587\u6863\u3002\u5b83\u4f1a\u968f\u7740\u4ea7\u54c1\u7684\u53d1\u5c55\u800c\u6f14\u53d8\u3002\u751f\u547d\u5468\u671f\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u9636\u6bb5\uff1a<\/p>\n<ul>\n<li><strong>\u8bbe\u8ba1\u9636\u6bb5\uff1a<\/strong> \u6839\u636e\u9700\u6c42\u8d77\u8349\u521d\u59cb\u6a21\u578b\u3002<\/li>\n<li><strong>\u5b9e\u65bd\u9636\u6bb5\uff1a<\/strong> \u521b\u5efa\u8fc1\u79fb\u811a\u672c\u4ee5\u6784\u5efa\u6a21\u5f0f\u3002<\/li>\n<li><strong>\u9a8c\u8bc1\u9636\u6bb5\uff1a<\/strong> \u8fd0\u884c\u8d1f\u8f7d\u6d4b\u8bd5\u4ee5\u9a8c\u8bc1\u6027\u80fd\u5047\u8bbe\u3002<\/li>\n<li><strong>\u8fed\u4ee3\u9636\u6bb5\uff1a<\/strong> \u5728\u6dfb\u52a0\u529f\u80fd\u65f6\uff0c\u589e\u52a0\u65b0\u7684\u5b57\u6bb5\u6216\u5173\u7cfb\u3002<\/li>\n<li><strong>\u4f18\u5316\u9636\u6bb5\uff1a<\/strong> \u6839\u636e\u751f\u4ea7\u6570\u636e\u4f18\u5316\u7d22\u5f15\u548c\u7ea6\u675f\u3002<\/li>\n<\/ul>\n<p>\u5728\u4f18\u5316\u9636\u6bb5\uff0c\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0\u6700\u521d\u7684\u57fa\u6570\u5047\u8bbe\u662f\u9519\u8bef\u7684\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0\u4e00\u4e2a<strong>\u4e00\u5bf9\u591a<\/strong>\u5173\u7cfb\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a<strong>\u591a\u5bf9\u591a<\/strong>\u5728\u5b9e\u9645\u4e2d\uff0c\u8fd9\u9700\u8981\u5c06\u6a21\u5f0f\u66f4\u6539\u4e3a\u5173\u8054\u8868\u3002\u8fd9\u7a81\u663e\u4e86\u8bbe\u8ba1\u7075\u6d3b\u6027\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2>\ud83d\udee1\ufe0f \u6a21\u5f0f\u8bbe\u8ba1\u4e2d\u7684\u5b89\u5168\u8003\u8651<\/h2>\n<p>\u6570\u636e\u5b89\u5168\u4e0e\u6a21\u5f0f\u8bbe\u8ba1\u5bc6\u5207\u76f8\u5173\u3002\u884c\u7ea7\u5b89\u5168\uff08RLS\uff09\u7b56\u7565\u901a\u5e38\u4f9d\u8d56\u4e8eERD\u7684\u7ed3\u6784\u624d\u80fd\u6b63\u786e\u8fd0\u884c\u3002\u5982\u679c<code>organization_id<\/code>\u6ca1\u6709\u88ab\u6b63\u786e\u7d22\u5f15\u548c\u5f3a\u5236\u6267\u884c\uff0c\u6765\u81ea\u7ec4\u7ec7A\u7684\u7528\u6237\u53ef\u80fd\u4f1a\u610f\u5916\u67e5\u8be2\u5230\u7ec4\u7ec7B\u7684\u6570\u636e\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u654f\u611f\u6570\u636e\u5e94\u88ab\u9694\u79bb\u3002\u5982\u679c\u7cfb\u7edf\u5904\u7406\u652f\u4ed8\u4fe1\u606f\uff0c\u8fd9\u4e9b\u6570\u636e\u7406\u60f3\u60c5\u51b5\u4e0b\u5e94\u5b58\u50a8\u5728\u5177\u6709\u66f4\u4e25\u683c\u8bbf\u95ee\u63a7\u5236\u7684\u72ec\u7acb\u6a21\u5f0f\u6216\u8868\u4e2d\uff0c\u800c\u4e0d\u662f\u4e0e\u666e\u901a\u7528\u6237\u5143\u6570\u636e\u6df7\u5408\u3002\u8fd9\u53ef\u4ee5\u9650\u5236\u5728\u53d1\u751f\u6cc4\u9732\u65f6\u7684\u5f71\u54cd\u8303\u56f4\u3002<\/p>\n<h2>\ud83d\udcdd \u8bbe\u8ba1\u51b3\u7b56\u603b\u7ed3<\/h2>\n<p>\u4e0b\u8868\u603b\u7ed3\u4e86\u672c\u6848\u4f8b\u7814\u7a76\u4e2d\u505a\u51fa\u7684\u5173\u952e\u51b3\u7b56\u53ca\u5176\u80cc\u540e\u7684\u7406\u7531\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u51b3\u7b56<\/th>\n<th>\u9009\u9879A<\/th>\n<th>\u9009\u9879B\uff08\u5df2\u9009\u62e9\uff09<\/th>\n<th>\u7406\u7531<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u591a\u79df\u6237<\/strong><\/td>\n<td>\u72ec\u7acb\u6570\u636e\u5e93<\/td>\n<td>\u5171\u4eab\u6570\u636e\u5e93\uff0c\u5171\u4eab\u6a21\u5f0f<\/td>\n<td>\u964d\u4f4e\u8fd0\u8425\u5f00\u9500\uff1b\u66f4\u6613\u4e8e\u7ba1\u7406\u8de8\u79df\u6237\u5206\u6790\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5220\u9664\u7ec4\u7ec7<\/strong><\/td>\n<td>\u786c\u5220\u9664<\/td>\n<td>\u8f6f\u5220\u9664<\/td>\n<td>\u4fdd\u7559\u5386\u53f2\u5ba1\u8ba1\u65e5\u5fd7\u5e76\u9632\u6b62\u6570\u636e\u4e22\u5931\uff0c\u4ee5\u6ee1\u8db3\u5408\u89c4\u6027\u8981\u6c42\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4efb\u52a1\u5206\u914d<\/strong><\/td>\n<td>\u5355\u5217<\/td>\n<td>\u5173\u8054\u8868<\/td>\n<td>\u5141\u8bb8\u591a\u4e2a\u5206\u914d\u4eba\u5458\uff0c\u5e76\u4e3a\u6bcf\u6b21\u5206\u914d\u8ddf\u8e2a\u7279\u5b9a\u89d2\u8272\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e3b\u952e<\/strong><\/td>\n<td>\u81ea\u52a8\u9012\u589e<\/td>\n<td>UUID<\/td>\n<td>\u652f\u6301\u672a\u6765\u7684\u5206\u5e03\u5f0f\u67b6\u6784\uff0c\u4f7f\u6570\u636e\u5408\u5e76\u66f4\u7b80\u5355\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6784\u5efa\u751f\u4ea7\u73af\u5883\u540e\u7aef\u4e0d\u4ec5\u4ec5\u662f\u7f16\u5199\u4ee3\u7801\u3002\u5b83\u8fd8\u9700\u8981\u6df1\u523b\u7406\u89e3\u6570\u636e\u7684\u6d41\u52a8\u65b9\u5f0f\u548c\u7ed3\u6784\u3002ERD\u5c31\u662f\u5f15\u5bfc\u8fd9\u4e00\u65c5\u7a0b\u7684\u5730\u56fe\u3002\u9075\u5faa\u8fd9\u4e9b\u539f\u5219\uff0c\u53ef\u4ee5\u786e\u4fdd\u7cfb\u7edf\u5728\u4e1a\u52a1\u589e\u957f\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u7a33\u5b9a\u3001\u5b89\u5168\u548c\u53ef\u6269\u5c55\u3002<\/p>\n<p>\u8bf7\u8bb0\u4f4f\uff0c\u76ee\u6807\u4e0d\u662f\u521b\u5efa\u6700\u590d\u6742\u7684\u56fe\u8868\uff0c\u800c\u662f\u521b\u5efa\u6700\u80fd\u6ee1\u8db3\u5e94\u7528\u7a0b\u5e8f\u9700\u6c42\u4e14\u6700\u5c0f\u5316\u6280\u672f\u503a\u52a1\u7684\u56fe\u8868\u3002\u6301\u7eed\u7684\u5ba1\u67e5\u548c\u8c03\u6574\u662f\u7ef4\u62a4\u5065\u5eb7\u6570\u636e\u751f\u6001\u7cfb\u7edf\u7684\u5173\u952e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bbe\u8ba1\u4e00\u4e2a\u7a33\u5065\u7684\u6570\u636e\u6a21\u578b\u4e0d\u4ec5\u4ec5\u662f\u4e00\u6b21\u5b66\u672f\u7ec3\u4e60\uff1b\u5b83\u662f\u5e94\u7528\u7a0b\u5e8f\u7a33\u5b9a&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1715,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"ERD\u5b9e\u6218\uff1a\u751f\u4ea7\u540e\u7aef\u6848\u4f8b\u7814\u7a76 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content=\"\u63a2\u7d22\u4e00\u4e2a\u771f\u5b9e\u7684ERD\u6848\u4f8b\u7814\u7a76\u3002\u5b66\u4e60\u6570\u636e\u5e93\u6a21\u5f0f\u8bbe\u8ba1\u3001\u5173\u7cfb\u548c\u5b8c\u6574\u6027\uff0c\u4ee5\u6784\u5efa\u53ef\u6269\u5c55\u7684\u751f\u4ea7\u7cfb\u7edf\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\/erd-in-action-production-backend-case-study\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ERD\u5b9e\u6218\uff1a\u751f\u4ea7\u540e\u7aef\u6848\u4f8b\u7814\u7a76 \ud83d\udee0\ufe0f\" \/>\n<meta property=\"og:description\" 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