{"id":1530,"date":"2026-03-27T21:53:43","date_gmt":"2026-03-27T21:53:43","guid":{"rendered":"https:\/\/www.viz-read.com\/tw\/erd-business-logic-requirements-data\/"},"modified":"2026-03-27T21:53:43","modified_gmt":"2026-03-27T21:53:43","slug":"erd-business-logic-requirements-data","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/tw\/erd-business-logic-requirements-data\/","title":{"rendered":"ERD \u8207\u5546\u696d\u908f\u8f2f\uff1a\u5f4c\u5408\u9700\u6c42\u8207\u8cc7\u6599\u4e4b\u9593\u7684\u5dee\u8ddd"},"content":{"rendered":"<p>\u8a2d\u8a08\u7a69\u5065\u7684\u8cc7\u6599\u67b6\u69cb\uff0c\u4e0d\u50c5\u50c5\u662f\u756b\u51fa\u65b9\u6846\u8207\u7dda\u689d\u9019\u9ebc\u7c21\u55ae\u3002\u5b83\u9700\u8981\u6df1\u5165\u7406\u89e3\u8cc7\u8a0a\u5728\u7d44\u7e54\u5167\u5982\u4f55\u6d41\u52d5\uff0c\u4ee5\u53ca\u9019\u4e9b\u6d41\u52d5\u5982\u4f55\u53d7\u5230\u898f\u5247\u7684\u898f\u7bc4\u3002\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09\u4f5c\u70ba\u7d50\u69cb\u85cd\u5716\uff0c\u800c\u5546\u696d\u908f\u8f2f\u5247\u6c7a\u5b9a\u7cfb\u7d71\u7684\u884c\u70ba\u3002\u7576\u9019\u5169\u500b\u5143\u7d20\u812b\u7bc0\u6642\uff0c\u7d50\u679c\u5f80\u5f80\u662f\u7cfb\u7d71\u8106\u5f31\uff0c\u96e3\u4ee5\u9069\u61c9\u73fe\u5be6\u9700\u6c42\u3002\u672c\u6307\u5357\u63a2\u8a0e\u8cc7\u6599\u6a21\u578b\u8207\u5546\u696d\u898f\u5247\u4e4b\u9593\u7684\u95dc\u9375\u4ea4\u96c6\uff0c\u63d0\u4f9b\u7b56\u7565\u4ee5\u78ba\u4fdd\u60a8\u7684\u8cc7\u6599\u7d50\u69cb\u80fd\u6709\u6548\u652f\u63f4\u60a8\u7684\u9700\u6c42\u3002<\/p>\n<p>\u6311\u6230\u5728\u65bc\u5c07\u62bd\u8c61\u6982\u5ff5\u2014\u2014\u4f8b\u5982\u300c\u4f7f\u7528\u8005\u7121\u6cd5\u8a02\u8cfc\u8d85\u904e\u5eab\u5b58\u6578\u91cf\u7684\u7522\u54c1\u300d\u2014\u2014\u8f49\u5316\u70ba\u5177\u9ad4\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u3002\u5982\u679c\u6a21\u578b\u672a\u80fd\u53cd\u6620\u9019\u4e9b\u898f\u5247\uff0c\u8cc7\u6599\u5b8c\u6574\u6027\u5c31\u6703\u53d7\u640d\u3002\u82e5\u898f\u5247\u904e\u65bc\u50f5\u5316\uff0c\u5546\u696d\u9748\u6d3b\u6027\u5c07\u55aa\u5931\u3002\u6211\u5011\u5fc5\u9808\u627e\u5230\u4e00\u7a2e\u5e73\u8861\uff0c\u4ee5\u7dad\u6301\u4e00\u81f4\u6027\uff0c\u53c8\u4e0d\u6291\u5236\u904b\u4f5c\u3002\u8b93\u6211\u5011\u4f86\u6aa2\u8996\u6838\u5fc3\u5143\u4ef6\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u5b83\u5011\u5354\u8abf\u4e00\u81f4\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Kawaii-style infographic illustrating the relationship between Entity-Relationship Diagrams and business logic for data architecture, featuring cute mascot characters ERD-chan and Logic-kun bridging a gap, with visual sections covering core components (entities, attributes, relationships, constraints), business logic layers (application, database, workflow), common friction points, three alignment strategies, a simplified mapping reference table, constraint types as a safety net, and collaboration best practices, all in soft pastel colors with rounded icons, decorative sparkles, and clear English labels on a 16:9 canvas\" decoding=\"async\" src=\"https:\/\/www.viz-read.com\/wp-content\/uploads\/2026\/03\/erd-business-logic-kawaii-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\u7406\u89e3\u6838\u5fc3\u5143\u4ef6 \ud83c\udfd7\ufe0f<\/h2>\n<p>\u70ba\u4e86\u5f4c\u5408\u5dee\u8ddd\uff0c\u6211\u5011\u5fc5\u9808\u9996\u5148\u660e\u78ba\u6211\u5011\u6240\u8655\u7406\u7684\u5167\u5bb9\u3002\u65b9\u7a0b\u5f0f\u7684\u5169\u7aef\u5404\u6709\u5176\u7368\u7279\u7279\u5fb5\uff0c\u5f71\u97ff\u8457\u5b83\u5011\u7684\u4e92\u52d5\u65b9\u5f0f\u3002<\/p>\n<h3>\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09<\/h3>\n<p>ERD \u4ee3\u8868\u8cc7\u6599\u7684\u975c\u614b\u7d50\u69cb\u3002\u5b83\u5b9a\u7fa9\u5be6\u9ad4\uff08\u8cc7\u6599\u8868\uff09\u3001\u5c6c\u6027\uff08\u6b04\u4f4d\uff09\u548c\u95dc\u4fc2\uff08\u5916\u9375\uff09\u3002\u5176\u4e3b\u8981\u76ee\u6a19\u662f\u898f\u7bc4\u5316\u8207\u5b8c\u6574\u6027\u3002\u5b83\u56de\u7b54\u7684\u554f\u984c\u662f\uff1a\u300c\u6211\u5011\u9700\u8981\u5132\u5b58\u54ea\u4e9b\u8cc7\u6599\uff1f\u300d\u95dc\u9375\u8981\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5be6\u9ad4\uff1a<\/strong> \u7cfb\u7d71\u4e2d\u7684\u57fa\u672c\u7269\u4ef6\uff0c\u4f8b\u5982 <em>\u9867\u5ba2<\/em>, <em>\u8a02\u55ae<\/em>\uff0c\u6216 <em>\u7522\u54c1<\/em>.<\/li>\n<li><strong>\u5c6c\u6027\uff1a<\/strong> \u63cf\u8ff0\u5be6\u9ad4\u7684\u5c6c\u6027\uff0c\u4f8b\u5982 <em>\u96fb\u5b50\u90f5\u4ef6<\/em>, <em>\u50f9\u683c<\/em>\uff0c\u6216 <em>\u72c0\u614b<\/em>.<\/li>\n<li><strong>\u95dc\u4fc2\uff1a<\/strong> \u5be6\u9ad4\u4e4b\u9593\u5982\u4f55\u9023\u7d50\uff0c\u901a\u5e38\u7531\u4e3b\u9375\u8207\u5916\u9375\u5b9a\u7fa9\u3002\u9019\u4e9b\u5b9a\u7fa9\u4e86\u57fa\u6578\u95dc\u4fc2\uff08\u4e00\u5c0d\u4e00\u3001\u4e00\u5c0d\u591a\uff09\u3002<\/li>\n<li><strong>\u7d04\u675f\uff1a<\/strong> \u5728\u8cc7\u6599\u5eab\u5c64\u7d1a\u5f37\u5236\u57f7\u884c\u7684\u898f\u5247\uff0c\u4f8b\u5982 <code>NOT NULL<\/code>, <code>UNIQUE<\/code>\uff0c\u6216<code>\u6aa2\u67e5<\/code>.<\/li>\n<\/ul>\n<p>\u96d6\u7136\u5f37\u5927\uff0cERD \u901a\u5e38\u662f\u88ab\u52d5\u7684\u3002\u5b83\u5132\u5b58\u8cc7\u6599\uff0c\u4f46\u672c\u8eab\u4e0d\u6703\u8655\u7406\u8cc7\u6599\u3002\u5b83\u662f\u5bb9\u5668\uff0c\u800c\u975e\u9a45\u52d5\u8005\u3002<\/p>\n<h3>\u5546\u696d\u908f\u8f2f<\/h3>\n<p>\u5546\u696d\u908f\u8f2f\u4ee3\u8868\u4e86\u4e3b\u52d5\u898f\u5247\uff0c\u7528\u4ee5\u898f\u7bc4\u8cc7\u6599\u5982\u4f55\u88ab\u5efa\u7acb\u3001\u4fee\u6539\u548c\u4f7f\u7528\u3002\u5b83\u56de\u7b54\u4e86\u9019\u6a23\u7684\u554f\u984c\uff1a\u300c\u6211\u5011\u5141\u8a31\u5c0d\u9019\u4e9b\u8cc7\u6599\u505a\u4ec0\u9ebc\uff1f\u300d\u9019\u7a2e\u908f\u8f2f\u53ef\u4ee5\u5b58\u5728\u65bc\u591a\u500b\u5c64\u7d1a\uff1a<\/p>\n<ul>\n<li><strong>\u61c9\u7528\u5c64\uff1a<\/strong>\u5f8c\u7aef\u6216\u524d\u7aef\u7684\u7a0b\u5f0f\u78bc\uff0c\u5728\u8cc7\u6599\u9032\u5165\u8cc7\u6599\u5eab\u524d\u9a57\u8b49\u8f38\u5165\u8cc7\u6599\u3002<\/li>\n<li><strong>\u8cc7\u6599\u5eab\u5c64\uff1a<\/strong>\u5132\u5b58\u7a0b\u5e8f\u3001\u89f8\u767c\u5668\u548c\u7d04\u675f\uff0c\u76f4\u63a5\u5728\u5132\u5b58\u5f15\u64ce\u5167\u5f37\u5236\u57f7\u884c\u898f\u5247\u3002<\/li>\n<li><strong>\u5de5\u4f5c\u6d41\u7a0b\u5c64\uff1a<\/strong>\u5b8c\u6210\u4e00\u9805\u4efb\u52d9\u6240\u9700\u7684\u4e8b\u4ef6\u5e8f\u5217\uff0c\u4f8b\u5982\u5be9\u6838\u93c8\u6216\u72c0\u614b\u8f49\u63db\u3002<\/li>\n<\/ul>\n<p>\u7576\u5546\u696d\u908f\u8f2f\u8207\u8cc7\u6599\u7d50\u69cb\u5206\u96e2\u904e\u9060\u6642\uff0c\u5c31\u6703\u7522\u751f\u4e0d\u4e00\u81f4\u3002\u4f8b\u5982\uff0c\u5982\u679c\u61c9\u7528\u7a0b\u5f0f\u5141\u8a31\u8f38\u5165\u8ca0\u6578\u6578\u91cf\uff0c\u4f46\u8cc7\u6599\u5eab\u7d04\u675f\u963b\u6b62\u4e86\u6b64\u64cd\u4f5c\uff0c\u4f7f\u7528\u8005\u9ad4\u9a57\u5c31\u6703\u4e2d\u65b7\u3002\u53cd\u4e4b\uff0c\u5982\u679c\u8cc7\u6599\u5eab\u5141\u8a31\u8ca0\u6578\u6578\u91cf\uff0c\u4f46\u61c9\u7528\u7a0b\u5f0f\u537b\u52a0\u4ee5\u963b\u64cb\uff0c\u5247\u908f\u8f2f\u6703\u91cd\u8907\uff0c\u5bb9\u6613\u51fa\u932f\u3002<\/p>\n<h2>\u6469\u64e6\u9ede\uff1a\u70ba\u4f55\u5b58\u5728\u9019\u9053\u5dee\u8ddd \ud83d\udcc9<\/h2>\n<p>\u958b\u767c\u4eba\u54e1\u8207\u8cc7\u6599\u5eab\u67b6\u69cb\u5e2b\u7d93\u5e38\u4f7f\u7528\u4e0d\u540c\u7684\u8a9e\u8a00\u3002\u6280\u8853\u5718\u968a\u95dc\u6ce8\u6548\u80fd\u8207\u5b8c\u6574\u6027\uff0c\u800c\u696d\u52d9\u5074\u5247\u95dc\u6ce8\u529f\u80fd\u8207\u4f7f\u7528\u8005\u9ad4\u9a57\u3002\u9019\u7a2e\u812b\u7bc0\u5c0e\u81f4\u4e86\u5e7e\u500b\u5e38\u898b\u7684\u6469\u64e6\u9ede\u3002<\/p>\n<ul>\n<li><strong>\u904e\u5ea6\u898f\u7bc4\u5316\uff1a<\/strong>\u56b4\u683c\u9075\u5b88\u898f\u7bc4\u5316\u898f\u5247\u53ef\u80fd\u4f7f\u8907\u96dc\u7684\u5546\u696d\u67e5\u8a62\u8b8a\u5f97\u56f0\u96e3\u3002\u9ad8\u5ea6\u898f\u7bc4\u5316\u7684\u7d50\u69cb\u9700\u8981\u5927\u91cf\u9023\u63a5\uff08join\uff09\u624d\u80fd\u53d6\u5f97\u7279\u5b9a\u5546\u696d\u898f\u5247\u6240\u9700\u7684\u8cc7\u6599\uff0c\u5f9e\u800c\u62d6\u6162\u61c9\u7528\u908f\u8f2f\u3002<\/li>\n<li><strong>\u786c\u7de8\u78bc\u898f\u5247\uff1a<\/strong>\u5c07\u5546\u696d\u898f\u5247\u76f4\u63a5\u5d4c\u5165\u61c9\u7528\u7a0b\u5f0f\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6703\u4f7f\u9019\u4e9b\u898f\u5247\u5c0d\u8cc7\u6599\u5c64\u4e0d\u53ef\u898b\u3002\u5982\u679c\u8cc7\u6599\u5eab\u7d50\u69cb\u8b8a\u66f4\uff0c\u61c9\u7528\u7a0b\u5f0f\u53ef\u80fd\u975c\u9ed8\u5931\u6557\u6216\u56de\u50b3\u4e0d\u4e00\u81f4\u7684\u8cc7\u6599\u3002<\/li>\n<li><strong>\u72c0\u614b\u7ba1\u7406\uff1a<\/strong>ERD \u5e38\u5728\u8655\u7406\u8907\u96dc\u72c0\u614b\u6a5f\uff08\u4f8b\u5982\u8a02\u55ae\u72c0\u614b\u5982\u300c\u5f85\u8655\u7406\u300d\u3001\u300c\u5df2\u51fa\u8ca8\u300d\u3001\u300c\u5df2\u9000\u8ca8\u300d\uff09\u6642\u9047\u5230\u56f0\u96e3\u3002\u82e5\u5c07\u9019\u4e9b\u72c0\u614b\u50c5\u4ee5\u7c21\u55ae\u6b04\u4f4d\u8868\u793a\uff0c\u82e5\u672a\u5f37\u5236\u57f7\u884c\u908f\u8f2f\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5b64\u7acb\u72c0\u614b\u7684\u51fa\u73fe\u3002<\/li>\n<li><strong>\u9a57\u8b49\u6642\u6a5f\uff1a<\/strong>\u6c7a\u5b9a\u9a57\u8b49\u662f\u5728\u5132\u5b58\u524d\u9084\u662f\u5132\u5b58\u5f8c\u9032\u884c\u81f3\u95dc\u91cd\u8981\u3002\u65e9\u671f\u9a57\u8b49\u53ef\u6e1b\u5c11\u8ca0\u8f09\uff0c\u4f46\u665a\u671f\u9a57\u8b49\u80fd\u78ba\u4fdd\u4f7f\u7528\u6700\u65b0\u8cc7\u6599\u3002<\/li>\n<\/ul>\n<p>\u7576\u5ffd\u7565\u9019\u4e9b\u8981\u9ede\u6642\uff0c\u7cfb\u7d71\u5c31\u6703\u8b8a\u6210\u4e00\u5718\u88dc\u4e01\u5f0f\u7684\u61c9\u8b8a\u63aa\u65bd\u3002\u958b\u767c\u4eba\u54e1\u6703\u52a0\u5165\u66ab\u6642\u6027\u4fee\u5fa9\u4ee5\u7e5e\u904e\u7d04\u675f\uff0c\u5c0e\u81f4\u6280\u8853\u8ca0\u50b5\u7d2f\u7a4d\u3002\u8cc7\u6599\u8b8a\u5f97\u4e0d\u53ef\u9760\uff0c\u5546\u696d\u908f\u8f2f\u4e5f\u8b8a\u5f97\u8106\u5f31\u3002<\/p>\n<h2>\u5c0d\u9f4a\u7b56\u7565 \ud83e\udd1d<\/h2>\n<p>\u5f4c\u88dc\u9019\u9053\u5dee\u8ddd\u9700\u8981\u6709\u610f\u8b58\u7684\u8a2d\u8a08\u3002\u6211\u5011\u5fc5\u9808\u5c07\u8cc7\u6599\u7d50\u69cb\u8996\u70ba\u96a8\u8457\u696d\u52d9\u9700\u6c42\u6f14\u9032\u7684\u6d3b\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7d93\u904e\u9a57\u8b49\u7684\u7b56\u7565\uff0c\u53ef\u5354\u52a9\u8cc7\u6599\u6a21\u578b\u8207\u908f\u8f2f\u5c0d\u9f4a\u3002<\/p>\n<h3>1. \u5c07\u7d04\u675f\u5efa\u6a21\u70ba\u5546\u696d\u898f\u5247<\/h3>\n<p>\u6bcf\u4e00\u9805\u9632\u6b62\u7121\u6548\u8cc7\u6599\u7684\u5546\u696d\u898f\u5247\u90fd\u61c9\u6709\u5c0d\u61c9\u7684\u8cc7\u6599\u5eab\u7d04\u675f\u3002\u4e0d\u8981\u50c5\u4f9d\u8cf4\u61c9\u7528\u7a0b\u5f0f\u7a0b\u5f0f\u78bc\u3002\u9019\u80fd\u78ba\u4fdd\u7121\u8ad6\u8cc7\u6599\u4f86\u81ea\u4f55\u8655\u2014\u2014API\u3001\u8173\u672c\u6216\u76f4\u63a5\u532f\u5165\u2014\u2014\u898f\u5247\u90fd\u80fd\u6210\u7acb\u3002<\/p>\n<ul>\n<li><strong>\u552f\u4e00\u6027\uff1a<\/strong>\u5982\u679c\u4f7f\u7528\u8005\u540d\u7a31\u5fc5\u9808\u552f\u4e00\uff0c\u61c9\u5728\u6b04\u4f4d\u5c64\u7d1a\u5f37\u5236\u57f7\u884c\u3002\u4e0d\u8981\u5148\u5728\u61c9\u7528\u7a0b\u5f0f\u4e2d\u6aa2\u67e5\uff0c\u56e0\u70ba\u53ef\u80fd\u6703\u767c\u751f\u7af6\u722d\u689d\u4ef6\u3002<\/li>\n<li><strong>\u7bc4\u570d\u6aa2\u67e5\uff1a<\/strong> \u5982\u679c\u6298\u6263\u4e0d\u80fd\u8d85\u904e 100%\uff0c\u8acb\u4f7f\u7528\u4e00\u500b <code>CHECK<\/code> \u7d04\u675f\u3002\u9019\u53ef\u9632\u6b62\u5927\u91cf\u66f4\u65b0\u9020\u6210\u7684\u610f\u5916\u8cc7\u6599\u640d\u58de\u3002<\/li>\n<li><strong>\u53c3\u8003\u5b8c\u6574\u6027\uff1a<\/strong> \u4f7f\u7528\u5916\u9375\u78ba\u4fdd\u8a02\u55ae\u59cb\u7d42\u5c6c\u65bc\u6709\u6548\u7684\u5ba2\u6236\u3002\u5982\u679c\u522a\u9664\u5ba2\u6236\uff0c\u8acb\u6839\u64da\u696d\u52d9\u9700\u6c42\u6c7a\u5b9a\u8a02\u55ae\u662f\u5426\u61c9\u4fdd\u7559\uff08\u8edf\u522a\u9664\uff09\u6216\u88ab\u79fb\u9664\uff08\u7d1a\u806f\u522a\u9664\uff09\u3002<\/li>\n<\/ul>\n<h3>2. \u70ba\u908f\u8f2f\u6548\u80fd\u9032\u884c\u53cd\u898f\u7bc4\u5316<\/h3>\n<p>\u96d6\u7136\u898f\u7bc4\u5316\u6709\u5229\u65bc\u5132\u5b58\uff0c\u4f46\u4e26\u4e0d\u7e3d\u662f\u9069\u5408\u908f\u8f2f\u3002\u8907\u96dc\u7684\u696d\u52d9\u898f\u5247\u901a\u5e38\u9700\u8981\u5f9e\u591a\u500b\u4f86\u6e90\u805a\u5408\u8cc7\u6599\u3002\u5982\u679c\u908f\u8f2f\u4ee5\u8b80\u53d6\u70ba\u4e3b\uff0c\u53ef\u8003\u616e\u5c0d\u7279\u5b9a\u5c6c\u6027\u9032\u884c\u53cd\u898f\u7bc4\u5316\u3002<\/p>\n<ul>\n<li><strong>\u5feb\u53d6\u7e3d\u984d\uff1a<\/strong> \u7576\u9700\u8981\u7e3d\u984d\u6642\uff0c\u4e0d\u5fc5\u6bcf\u6b21\u90fd\u8a08\u7b97\u660e\u7d30\u9805\u76ee\u7e3d\u548c\uff0c\u800c\u662f\u5c07 <em>total_amount<\/em> \u5b58\u5132\u5728\u8a02\u55ae\u8cc7\u6599\u8868\u4e2d\u3002\u7576\u660e\u7d30\u9805\u76ee\u8b8a\u66f4\u6642\uff0c\u66f4\u65b0\u6b64\u6b04\u4f4d\u3002<\/li>\n<li><strong>\u72c0\u614b\u65d7\u6a19\uff1a<\/strong> \u5982\u679c\u4f7f\u7528\u8005\u72c0\u614b\u6c7a\u5b9a\u5b58\u53d6\u6b0a\u9650\uff0c\u8acb\u5c07\u5176\u5132\u5b58\u5728\u6b04\u4f4d\u4e2d\uff0c\u800c\u975e\u900f\u904e\u6b77\u53f2\u8cc7\u6599\u8868\u9032\u884c\u9023\u63a5\u3002\u9019\u53ef\u52a0\u5feb\u6aa2\u67e5\u6b0a\u9650\u7684\u908f\u8f2f\u57f7\u884c\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<p>\u6b64\u65b9\u6cd5\u4ee5\u5132\u5b58\u7a7a\u9593\u63db\u53d6\u67e5\u8a62\u901f\u5ea6\u8207\u908f\u8f2f\u7c21\u6f54\u6027\u3002\u5fc5\u9808\u8b39\u614e\u7ba1\u7406\uff0c\u4ee5\u907f\u514d\u8cc7\u6599\u4e0d\u4e00\u81f4\u3002<\/p>\n<h3>3. \u660e\u78ba\u7684\u72c0\u614b\u8868\u793a<\/h3>\n<p>\u91dd\u5c0d\u5de5\u4f5c\u6d41\u7a0b\uff0c\u8cc7\u6599\u5eab\u61c9\u660e\u78ba\u53cd\u6620\u72c0\u614b\u3002\u4f7f\u7528\u5c08\u7528\u7684\u72c0\u614b\u6b04\u4f4d\uff0c\u4e26\u8a2d\u5b9a\u53d7\u9650\u7684\u503c\u96c6\u5408\u3002\u907f\u514d\u4f7f\u7528\u81ea\u7531\u6587\u5b57\u6b04\u4f4d\u4f86\u8868\u793a\u72c0\u614b\u3002<\/p>\n<ul>\n<li><strong>\u5217\u8209\u503c\uff1a<\/strong> \u660e\u78ba\u5b9a\u7fa9\u5141\u8a31\u7684\u72c0\u614b\u3002\u9019\u53ef\u4f7f\u5831\u8868\u8207\u908f\u8f2f\u66f4\u6613\u8655\u7406\u3002<\/li>\n<li><strong>\u8f49\u79fb\u8868\u683c\uff1a<\/strong> \u5c0d\u65bc\u8907\u96dc\u7684\u5de5\u4f5c\u6d41\u7a0b\uff0c\u4f7f\u7528\u95dc\u806f\u8868\u683c\u4f86\u8ffd\u8e64\u6b77\u53f2\u3002\u9019\u53ef\u8b93\u60a8\u91cd\u5efa\u9054\u5230\u76ee\u524d\u72c0\u614b\u7684\u908f\u8f2f\u8def\u5f91\u3002<\/li>\n<\/ul>\n<h2>\u908f\u8f2f\u8207\u7d50\u69cb\u7684\u5c0d\u61c9\uff1a\u5be6\u7528\u8868\u683c \ud83d\udcca<\/h2>\n<p>\u70ba\u4e86\u89e3\u62bd\u8c61\u898f\u5247\u5982\u4f55\u8f49\u5316\u70ba\u5177\u9ad4\u7d50\u69cb\uff0c\u8acb\u53c3\u8003\u4ee5\u4e0b\u5c0d\u61c9\u95dc\u4fc2\u3002\u6b64\u8868\u683c\u8aaa\u660e\u5e38\u898b\u7684\u696d\u52d9\u9700\u6c42\u53ca\u5176\u5c0d\u61c9\u7684\u8cc7\u6599\u6a21\u578b\u6a21\u5f0f\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u696d\u52d9\u9700\u6c42<\/th>\n<th>\u908f\u8f2f\u542b\u7fa9<\/th>\n<th>\u7d50\u69cb\u5be6\u4f5c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4f7f\u7528\u8005\u53ea\u80fd\u64c1\u6709\u4e00\u500b\u6709\u6548\u7684\u8a02\u95b1<\/td>\n<td>\u91dd\u5c0d\u6d3b\u8e8d\u72c0\u614b\u7684\u552f\u4e00\u6027\u7d04\u675f<\/td>\n<td><code>UNIQUE (user_id, status)<\/code> \u5176\u4e2d status = \u2018active\u2019<\/td>\n<\/tr>\n<tr>\n<td>\u5eab\u5b58\u4e0d\u80fd\u4f4e\u65bc\u96f6<\/td>\n<td>\u5beb\u5165\u6642\u9a57\u8b49<\/td>\n<td><code>CHECK (\u6578\u91cf &gt;= 0)<\/code>\u6216\u89f8\u767c\u5668\u908f\u8f2f<\/td>\n<\/tr>\n<tr>\n<td>\u8a02\u55ae\u5fc5\u9808\u5c6c\u65bc\u73fe\u6709\u7684\u5ba2\u6236<\/td>\n<td>\u53c3\u8003\u5b8c\u6574\u6027<\/td>\n<td><code>\u5916\u9375 (customer_id) \u53c3\u8003 Customers(id)<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u6298\u6263\u6309\u9805\u76ee\u8a08\u7b97<\/td>\n<td>\u975e\u898f\u7bc4\u5316\u5132\u5b58<\/td>\n<td>\u5132\u5b58 <code>\u6298\u6263\u5f8c\u50f9\u683c<\/code>\u5728 OrderItem \u4e0a\uff0c\u8b8a\u66f4\u6642\u66f4\u65b0<\/td>\n<\/tr>\n<tr>\n<td>\u65e5\u8a8c\u5fc5\u9808\u4fdd\u7559\u4e94\u5e74<\/td>\n<td>\u751f\u547d\u9031\u671f\u7ba1\u7406<\/td>\n<td><code>\u5efa\u7acb\u6642\u9593<\/code>\u6b04\u4f4d + \u5f8c\u53f0\u5de5\u4f5c\u4ee5\u9032\u884c\u6b78\u6a94<\/td>\n<\/tr>\n<tr>\n<td>\u89d2\u8272\u6c7a\u5b9a\u529f\u80fd\u5b58\u53d6\u6b0a\u9650<\/td>\n<td>\u95dc\u806f\u6620\u5c04<\/td>\n<td>\u95dc\u806f\u8868 <code>\u89d2\u8272\u6b0a\u9650<\/code>\u9023\u7d50\u4f7f\u7528\u8005\u81f3\u529f\u80fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6b64\u6620\u5c04\u78ba\u4fdd\u6bcf\u500b\u898f\u5247\u5728\u8cc7\u6599\u6a21\u578b\u4e2d\u90fd\u6709\u5176\u6b78\u5c6c\u3002\u5b83\u53ef\u9632\u6b62\u908f\u8f2f\u50c5\u5b58\u5728\u65bc\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u4f7f\u8cc7\u6599\u9762\u81e8\u98a8\u96aa\u7684\u60c5\u6cc1\u3002<\/p>\n<h2>\u9a57\u8b49\u8207\u7d04\u675f\uff1a\u5b89\u5168\u7db2 \ud83d\udee1\ufe0f<\/h2>\n<p>\u7d04\u675f\u662f\u8cc7\u6599\u5b8c\u6574\u6027\u7b2c\u4e00\u9053\u9632\u7dda\u3002\u5b83\u5011\u7531\u8cc7\u6599\u5eab\u5f15\u64ce\u5f37\u5236\u57f7\u884c\uff0c\u56e0\u6b64\u6bd4\u61c9\u7528\u5c64\u6aa2\u67e5\u66f4\u5feb\u4e14\u66f4\u53ef\u9760\u3002\u7136\u800c\uff0c\u5b83\u5011\u4e0d\u61c9\u662f<em>\u552f\u4e00<\/em>\u5c64\u3002<\/p>\n<h3>\u7d04\u675f\u985e\u578b<\/h3>\n<ul>\n<li><strong>\u4e3b\u9375\uff1a<\/strong>\u78ba\u4fdd\u6bcf\u7b46\u8a18\u9304\u90fd\u5177\u6709\u552f\u4e00\u53ef\u8b58\u5225\u6027\u3002\u9019\u5c0d\u65bc\u6240\u6709\u95dc\u4fc2\u90fd\u662f\u57fa\u672c\u7684\u3002<\/li>\n<li><strong>\u5916\u9375\uff1a<\/strong> \u7dad\u6301\u8868\u683c\u4e4b\u9593\u7684\u95dc\u4fc2\u3002\u5b83\u5011\u53ef\u9632\u6b62\u51fa\u73fe\u5b64\u7acb\u8a18\u9304\u3002<\/li>\n<li><strong>\u6aa2\u67e5\u7d04\u675f\uff1a<\/strong> \u5b9a\u7fa9\u6b04\u4f4d\u503c\u7684\u7279\u5b9a\u689d\u4ef6\u3002\u9069\u7528\u65bc\u7bc4\u570d\u3001\u683c\u5f0f\u6216\u908f\u8f2f\uff0c\u4f8b\u5982<code>\u50f9\u683c &gt; 0<\/code>.<\/li>\n<li><strong>\u552f\u4e00\u6027\u7d04\u675f\uff1a<\/strong> \u9632\u6b62\u91cd\u8907\u8cc7\u6599\u3002\u5c0d\u65bc\u96fb\u5b50\u90f5\u4ef6\u3001\u4f7f\u7528\u8005\u540d\u7a31\u6216 SKU \u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<\/ul>\n<h3>\u89f8\u767c\u5668\u8207\u5132\u5b58\u7a0b\u5e8f<\/h3>\n<p>\u6709\u6642\uff0c\u7d04\u675f\u4e26\u4e0d\u8db3\u4ee5\u61c9\u4ed8\u9700\u6c42\u3002\u7576\u4ea4\u6613\u767c\u751f\u6642\uff0c\u9700\u8981\u8de8\u591a\u500b\u8868\u683c\u66f4\u65b0\u9918\u984d\u7b49\u8907\u96dc\u908f\u8f2f\uff0c\u9019\u5c31\u9700\u8981\u4f7f\u7528\u89f8\u767c\u5668\u3002\u96d6\u7136\u529f\u80fd\u5f37\u5927\uff0c\u4f46\u89f8\u767c\u5668\u61c9\u8b39\u614e\u4f7f\u7528\u3002\u5b83\u5011\u53ef\u80fd\u96b1\u85cf\u958b\u767c\u4eba\u54e1\u7684\u908f\u8f2f\uff0c\u4e26\u4f7f\u9664\u932f\u8b8a\u5f97\u56f0\u96e3\u3002<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u6848\u4f8b\uff1a<\/strong> \u81ea\u52d5\u6b78\u6a94\u820a\u8a18\u9304\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6848\u4f8b\uff1a<\/strong> \u5728\u63d2\u5165\u524d\u8a08\u7b97\u884d\u751f\u6b04\u4f4d\u3002<\/li>\n<li><strong>\u8b66\u544a\uff1a<\/strong> \u907f\u514d\u5c07\u672c\u61c9\u7531\u61c9\u7528\u5c64\u8655\u7406\u7684\u696d\u52d9\u908f\u8f2f\u653e\u5165\u89f8\u767c\u5668\u3002\u89f8\u767c\u5668\u61c9\u5c08\u6ce8\u65bc\u8cc7\u6599\u5b8c\u6574\u6027\uff0c\u800c\u975e\u4f7f\u7528\u8005\u4ecb\u9762\u7684\u6d41\u7a0b\u3002<\/li>\n<\/ul>\n<h2>\u6f14\u9032\u8207\u91cd\u69cb \ud83d\udd04<\/h2>\n<p>\u696d\u52d9\u898f\u5247\u6703\u8b8a\u66f4\u3002\u4e00\u5bb6\u516c\u53f8\u53ef\u80fd\u5f9e\u92b7\u552e\u8a02\u95b1\u670d\u52d9\u8f49\u70ba\u4e00\u6b21\u6027\u8cfc\u8cb7\u3002\u8cc7\u6599\u6a21\u578b\u5fc5\u9808\u80fd\u96a8\u8457\u8b8a\u66f4\u6f14\u9032\uff0c\u800c\u4e0d\u6703\u7834\u58de\u73fe\u6709\u7684\u908f\u8f2f\u3002<\/p>\n<h3>\u8cc7\u6599\u7d50\u69cb\u7684\u7248\u672c\u63a7\u5236<\/h3>\n<p>ERD \u7684\u8b8a\u66f4\u61c9\u9032\u884c\u7248\u672c\u63a7\u5236\u3002\u4f7f\u7528\u9077\u79fb\u8173\u672c\u4f86\u7ba1\u7406\u904e\u6e21\u3002\u9019\u6a23\u5373\u4f7f\u8b8a\u66f4\u610f\u5916\u7834\u58de\u4e86\u696d\u52d9\u908f\u8f2f\uff0c\u4e5f\u80fd\u5920\u56de\u6efe\u3002<\/p>\n<ul>\n<li><strong>\u5411\u5f8c\u76f8\u5bb9\u6027\uff1a<\/strong> \u65b0\u589e\u6b04\u4f4d\u6642\uff0c\u61c9\u5148\u8a2d\u70ba\u53ef\u70ba\u7a7a\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u65b0\u908f\u8f2f\u90e8\u7f72\u671f\u9593\uff0c\u8b93\u820a\u908f\u8f2f\u7e7c\u7e8c\u904b\u4f5c\u3002<\/li>\n<li><strong>\u68c4\u7528\uff1a<\/strong> \u4e0d\u8981\u7acb\u5373\u522a\u9664\u6b04\u4f4d\u3002\u61c9\u6a19\u8a18\u70ba\u68c4\u7528\u4e26\u4fdd\u7559\u4e00\u6bb5\u6642\u9593\uff0c\u4ee5\u652f\u63f4\u820a\u7684\u6574\u5408\u3002<\/li>\n<li><strong>\u6587\u4ef6\uff1a<\/strong> \u78ba\u4fdd\u8cc7\u6599\u7d50\u69cb\u6587\u4ef6\u8207\u7a0b\u5f0f\u78bc\u4fdd\u6301\u540c\u6b65\u3002ERD \u4e2d\u7684\u8a3b\u89e3\u61c9\u8aaa\u660e\u6b04\u4f4d\u80cc\u5f8c\u7684\u696d\u52d9\u898f\u5247\u3002<\/li>\n<\/ul>\n<h3>\u70ba\u908f\u8f2f\u9032\u884c\u91cd\u69cb<\/h3>\n<p>\u96a8\u8457\u9700\u6c42\u589e\u52a0\uff0c\u6700\u521d\u7684 ERD \u53ef\u80fd\u6703\u6210\u70ba\u74f6\u9838\u3002\u4f60\u53ef\u80fd\u9700\u8981\u62c6\u5206\u8868\u683c\u6216\u5408\u4f75\u5b83\u5011\u3002\u9019\u662f\u4e00\u9805\u91cd\u5927\u4efb\u52d9\uff0c\u9700\u8981\u4ed4\u7d30\u898f\u5283\u3002<\/p>\n<ul>\n<li><strong>\u8b58\u5225\u908f\u8f2f\uff1a<\/strong> \u5224\u65b7\u54ea\u4e9b\u696d\u52d9\u898f\u5247\u5c0e\u81f4\u4e86\u6548\u80fd\u6216\u5b8c\u6574\u6027\u554f\u984c\u3002<\/li>\n<li><strong>\u898f\u5283\u9077\u79fb\uff1a<\/strong> \u5efa\u7acb\u4e00\u500b\u8173\u672c\uff0c\u5c07\u8cc7\u6599\u79fb\u52d5\u5230\u65b0\u7684\u7d50\u69cb\u4e2d\uff0c\u540c\u6642\u4fdd\u6301\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u56b4\u683c\u6e2c\u8a66\uff1a<\/strong> \u4f7f\u7528\u6b77\u53f2\u8cc7\u6599\u904b\u884c\u65b0\u7684\u908f\u8f2f\uff0c\u4ee5\u78ba\u4fdd\u5176\u884c\u70ba\u7b26\u5408\u9810\u671f\u3002<\/li>\n<\/ul>\n<h2>\u5354\u4f5c\u8207\u6587\u4ef6\u8a18\u9304 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