{"id":101,"date":"2026-04-02T05:01:30","date_gmt":"2026-04-02T05:01:30","guid":{"rendered":"https:\/\/www.we-notes.com\/tw\/quick-start-er-diagrams-build-first-schema-15-minutes\/"},"modified":"2026-04-02T05:01:30","modified_gmt":"2026-04-02T05:01:30","slug":"quick-start-er-diagrams-build-first-schema-15-minutes","status":"publish","type":"post","link":"https:\/\/www.we-notes.com\/tw\/quick-start-er-diagrams-build-first-schema-15-minutes\/","title":{"rendered":"ER\u5716\u7684\u5feb\u901f\u5165\u9580\uff1a\u7121\u9700\u5de5\u5177\uff0c15\u5206\u9418\u5167\u5efa\u7acb\u60a8\u7684\u7b2c\u4e00\u500b\u8cc7\u6599\u7d50\u69cb"},"content":{"rendered":"<p>\u8a2d\u8a08\u8cc7\u6599\u5eab\u7d50\u69cb\u662f\u8edf\u9ad4\u958b\u767c\u4e2d\u7684\u57fa\u790e\u6b65\u9a5f\uff0c\u4f46\u5c0d\u521d\u5b78\u8005\u800c\u8a00\uff0c\u9019\u5f80\u5f80\u4ee4\u4eba\u611f\u5230\u754f\u61fc\u3002\u4f60\u53ef\u80fd\u6703\u8a8d\u70ba\u9700\u8981\u6602\u8cb4\u7684\u8edf\u9ad4\u624d\u80fd\u958b\u59cb\uff0c\u4f46\u8cc7\u6599\u6a21\u578b\u7684\u6838\u5fc3\u908f\u8f2f\u5176\u5be6\u7368\u7acb\u65bc\u4efb\u4f55\u7279\u5b9a\u61c9\u7528\u7a0b\u5f0f\u3002\u672c\u6307\u5357\u5c08\u6ce8\u65bc<strong>\u5be6\u9ad4\u95dc\u4fc2\u5716<\/strong>\uff08ERD\uff09\u7684\u57fa\u672c\u6982\u5ff5\u3002\u900f\u904e\u53bb\u9664\u6578\u4f4d\u96dc\u8a0a\uff0c\u50c5\u6191\u4e00\u652f\u7b46\u548c\u4e00\u5f35\u7d19\uff0c\u4f60\u5c31\u80fd\u7406\u89e3\u8cc7\u6599\u7684\u67b6\u69cb\u3002<\/p>\n<p>\u5b78\u7fd2\u624b\u7e6a<strong>ER\u5716<\/strong>\u624b\u52d5\u7e6a\u88fd\u80fd\u935b\u934a\u4f60\u7684\u908f\u8f2f\u601d\u7dad\u3002\u5b83\u8feb\u4f7f\u4f60\u5728\u64b0\u5beb\u4efb\u4f55\u7a0b\u5f0f\u78bc\u4e4b\u524d\uff0c\u660e\u78ba\u5b9a\u7fa9\u95dc\u4fc2\u3002\u7121\u8ad6\u4f60\u662f\u5728\u8a2d\u8a08\u7c21\u55ae\u7684\u5eab\u5b58\u7cfb\u7d71\uff0c\u9084\u662f\u8907\u96dc\u7684\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\uff0c\u9019\u4e9b\u539f\u5247\u90fd\u662f\u4e00\u81f4\u7684\u3002\u5728\u672c\u6307\u5357\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u8cc7\u6599\u5eab\u7d50\u69cb\u7684\u7d44\u6210\uff0c\u5982\u4f55\u5efa\u7acb\u95dc\u4fc2\u5716\uff0c\u4ee5\u53ca\u5982\u4f55\u5728\u4e0d\u4f9d\u8cf4\u81ea\u52d5\u5316\u5de5\u5177\u7684\u60c5\u6cc1\u4e0b\uff0c\u8996\u89ba\u5316\u8cc7\u6599\u6d41\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Cute kawaii-style infographic explaining Entity Relationship Diagram basics: shows core components (entities, attributes, relationships), cardinality types (1:1, 1:N, M:N), and 4-step manual schema building process using pastel vector illustrations with rounded shapes, perfect for beginners learning database design without tools\" decoding=\"async\" src=\"https:\/\/www.we-notes.com\/wp-content\/uploads\/2026\/04\/kawaii-er-diagram-quick-start-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83e\udd14 \u4ec0\u9ebc\u662fER\u5716\uff1f<\/h2>\n<p>\u5be6\u9ad4\u95dc\u4fc2\u5716\u662f\u7cfb\u7d71\u4e2d\u8cc7\u6599\u7d44\u7e54\u65b9\u5f0f\u7684\u8996\u89ba\u5316\u5448\u73fe\u3002\u5b83\u4f5c\u70ba\u8cc7\u6599\u5eab\u7684\u85cd\u5716\u3002\u4f60\u4e0d\u6703\u7acb\u5373\u770b\u5230\u8cc7\u6599\u7684\u884c\u5217\uff0c\u800c\u662f\u89c0\u5bdf\u7269\u4ef6\uff08\u5be6\u9ad4\uff09\u53ca\u5176\u4e92\u52d5\u65b9\u5f0f\uff08\u95dc\u4fc2\uff09\u3002\u9019\u7a2e\u9ad8\u968e\u8996\u89d2\u6709\u52a9\u65bc\u5229\u5bb3\u95dc\u4fc2\u4eba\u7406\u89e3\u8cc7\u6599\u7d50\u69cb\u4e2d\u6240\u96b1\u542b\u7684\u5546\u696d\u908f\u8f2f\u3002<\/p>\n<p>\u7576\u4f60\u5efa\u7acbERD\u6642\uff0c\u5176\u5be6\u662f\u5728\u70ba\u6bcf\u7b46\u8cc7\u6599\u56de\u7b54\u4e09\u500b\u57fa\u672c\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u4ec0\u9ebc<\/strong>\u662f\u63cf\u8ff0\u4ec0\u9ebc\uff1f\uff08\u5be6\u9ad4\uff09<\/li>\n<li><strong>\u4ec0\u9ebc<\/strong>\u7d30\u7bc0\u662f\u4ec0\u9ebc\uff1f\uff08\u5c6c\u6027\uff09<\/li>\n<li><strong>\u5982\u4f55<\/strong>\u8207\u5176\u4ed6\u7269\u4ef6\u5982\u4f55\u9023\u63a5\uff1f\uff08\u95dc\u4fc2\uff09<\/li>\n<\/ul>\n<p>\u82e5\u7121\u9019\u4e9b\u8996\u89ba\u8f14\u52a9\uff0c\u8cc7\u6599\u5eab\u8a2d\u8a08\u5f80\u5f80\u8b8a\u6210\u731c\u8b0e\u904a\u6232\u3002\u4f60\u53ef\u80fd\u6703\u7522\u751f\u91cd\u8907\u8cc7\u6599\uff0c\u6216\u907a\u6f0f\u95dc\u9375\u9023\u7d50\uff0c\u5c0e\u81f4\u61c9\u7528\u7a0b\u5f0f\u65e5\u5f8c\u51fa\u73fe\u554f\u984c\u3002\u4e00\u500b\u8a2d\u8a08\u826f\u597d\u7684\u5716\u8868\u80fd\u4e8b\u5148\u907f\u514d\u9019\u4e9b\u554f\u984c\u3002<\/p>\n<h2>\ud83e\uddf1 \u8cc7\u6599\u7d50\u69cb\u7684\u6838\u5fc3\u7d44\u6210<\/h2>\n<p>\u5728\u7e6a\u88fd\u4efb\u4f55\u7dda\u689d\u4e4b\u524d\uff0c\u4f60\u5fc5\u9808\u5148\u4e86\u89e3\u57fa\u672c\u69cb\u4ef6\u3002\u6bcf\u500bER\u5716\u90fd\u5305\u542b\u4e09\u500b\u4e3b\u8981\u5143\u7d20\u3002\u82e5\u907a\u6f0f\u5176\u4e2d\u4e00\u500b\uff0c\u6a21\u578b\u5c31\u4e0d\u5b8c\u6574\u3002<\/p>\n<h3>1. \u5be6\u9ad4<\/h3>\n<p>\u5be6\u9ad4\u4ee3\u8868\u4f60\u60f3\u8981\u5132\u5b58\u8cc7\u8a0a\u7684\u73fe\u5be6\u4e16\u754c\u7269\u4ef6\u6216\u6982\u5ff5\u3002\u5728\u5be6\u969b\u8cc7\u6599\u5eab\u4e2d\uff0c\u9019\u5c0d\u61c9\u5230\u4e00\u5f35\u8cc7\u6599\u8868\u3002\u5728\u5716\u8868\u4e2d\uff0c\u901a\u5e38\u4ee5\u77e9\u5f62\u8868\u793a\u3002<\/p>\n<ul>\n<li><strong>\u7bc4\u4f8b\uff1a<\/strong>\u5728\u5716\u66f8\u9928\u7cfb\u7d71\u4e2d\uff0c<em>\u66f8\u7c4d<\/em>, <em>\u4f5c\u8005<\/em>\uff0c\u4ee5\u53ca<em>\u6703\u54e1<\/em>\u90fd\u662f\u5be6\u9ad4\u3002<\/li>\n<li><strong>\u7bc4\u4f8b\uff1a<\/strong> \u5728\u96fb\u5b50\u5546\u52d9\u5546\u5e97\u4e2d\uff0c<em>\u7522\u54c1<\/em>, <em>\u9867\u5ba2<\/em>\uff0c\u4ee5\u53ca<em>\u8a02\u55ae<\/em> \u90fd\u662f\u5be6\u9ad4\u3002<\/li>\n<\/ul>\n<h3>2. \u5c6c\u6027<\/h3>\n<p>\u5c6c\u6027\u662f\u63cf\u8ff0\u5be6\u9ad4\u7684\u5177\u9ad4\u8cc7\u8a0a\u3002\u9019\u4e9b\u6703\u8b8a\u6210\u8cc7\u6599\u5eab\u8868\u683c\u4e2d\u7684\u6b04\u4f4d\u3002\u5b83\u5011\u5b9a\u7fa9\u4e86\u7269\u4ef6\u7684\u5c6c\u6027\u3002<\/p>\n<ul>\n<li><strong>\u7bc4\u4f8b\uff1a<\/strong> \u5c0d\u65bc<em>\u6703\u54e1<\/em> \u5be6\u9ad4\u800c\u8a00\uff0c\u5c6c\u6027\u53ef\u80fd\u5305\u62ec<em>\u6703\u54e1\u7de8\u865f<\/em>, <em>\u59d3\u540d<\/em>, <em>\u96fb\u5b50\u90f5\u4ef6<\/em>\uff0c\u4ee5\u53ca<em>\u52a0\u5165\u65e5\u671f<\/em>.<\/li>\n<li><strong>\u4e3b\u8981\u9375\uff1a<\/strong> \u6bcf\u7b46\u8a18\u9304\u4e2d\uff0c\u5fc5\u9808\u6709\u4e00\u500b\u5c6c\u6027\u662f\u552f\u4e00\u7684\u3002\u9019\u901a\u5e38\u6703\u4ee5\u5e95\u7dda\u6a19\u793a\u6216\u660e\u986f\u6a19\u8a18\u3002\u5c0d\u65bc<em>\u6703\u54e1<\/em>\uff0c<em>\u6703\u54e1\u7de8\u865f<\/em> \u662f\u4e3b\u8981\u9375\u3002<\/li>\n<li><strong>\u5916\u4f86\u9375\uff1a<\/strong> \u9023\u7d50\u5230\u53e6\u4e00\u500b\u5be6\u9ad4\u4e3b\u8981\u9375\u7684\u5c6c\u6027\u3002<\/li>\n<\/ul>\n<h3>3. \u95dc\u4fc2<\/h3>\n<p>\u95dc\u4fc2\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u4e92\u52d5\u65b9\u5f0f\u3002\u9023\u63a5\u5169\u500b\u77e9\u5f62\u7684\u7dda\u689d\u8868\u793a\u4e00\u7a2e\u95dc\u4fc2\u3002\u9019\u544a\u8a34\u4f60\u4e00\u500b\u5be6\u9ad4\u4e2d\u7684\u8cc7\u6599\u8207\u53e6\u4e00\u500b\u5be6\u9ad4\u4e2d\u7684\u8cc7\u6599\u76f8\u95dc\u806f\u3002<\/p>\n<ul>\n<li><strong>\u7bc4\u4f8b\uff1a<\/strong> \u4e00\u672c <em>\u6210\u54e1<\/em> \u53ef\u4ee5\u501f\u95b1\u8a31\u591a <em>\u66f8\u7c4d<\/em>.<\/li>\n<li><strong>\u7bc4\u4f8b\uff1a<\/strong> \u4e00\u672c <em>\u66f8<\/em> \u6709\u4e00\u500b\u7279\u5b9a\u7684 <em>\u4f5c\u8005<\/em>.<\/li>\n<\/ul>\n<h2>\ud83d\udd17 \u7406\u89e3\u95dc\u4fc2\u8207\u57fa\u6578<\/h2>\n<p>\u57fa\u6578\u662fER\u5efa\u6a21\u4e2d\u6700\u95dc\u9375\u7684\u6982\u5ff5\u3002\u5b83\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u6578\u503c\u95dc\u4fc2\u3002\u5b83\u56de\u7b54\u4e86\u9019\u6a23\u7684\u554f\u984c\uff1a\u300c\u5be6\u9ad4A\u7684\u591a\u5c11\u500b\u5be6\u4f8b\u8207\u5be6\u9ad4B\u7684\u4e00\u500b\u5be6\u4f8b\u76f8\u95dc\uff1f\u300d\u8aa4\u89e3\u57fa\u6578\u6703\u5c0e\u81f4\u8cc7\u6599\u91cd\u8907\u6216\u5b64\u5152\u8a18\u9304\u3002<\/p>\n<p>\u4f60\u5c07\u6703\u9047\u5230\u4e09\u7a2e\u4e3b\u8981\u7684\u57fa\u6578\u985e\u578b\uff1a<\/p>\n<table border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%; text-align: left;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th><strong>\u57fa\u6578\u985e\u578b<\/strong><\/th>\n<th><strong>\u63cf\u8ff0<\/strong><\/th>\n<th><strong>\u73fe\u5be6\u4e16\u754c\u7bc4\u4f8b<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u4e00\u5c0d\u4e00 (1:1)<\/strong><\/td>\n<td>\u8868A\u4e2d\u7684\u4e00\u7b46\u8a18\u9304\u8207\u8868B\u4e2d\u7684\u4e00\u7b46\u8a18\u9304\u5b8c\u5168\u5c0d\u61c9\u3002<\/td>\n<td>\u4e00\u500b\u4eba\u53ca\u5176\u8b77\u7167\u3002\u4e00\u500b\u4eba\u64c1\u6709\u4e00\u5f35\u8b77\u7167\uff1b\u4e00\u5f35\u8b77\u7167\u53ea\u5c6c\u65bc\u4e00\u500b\u4eba\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e00\u5c0d\u591a (1:N)<\/strong><\/td>\n<td>\u8868A\u4e2d\u7684\u4e00\u7b46\u8a18\u9304\u8207\u8868B\u4e2d\u7684\u591a\u7b46\u8a18\u9304\u76f8\u95dc\u3002\u53cd\u4e4b\u5247\u4e0d\u6210\u7acb\u3002<\/td>\n<td>\u4e00\u500b\u90e8\u9580\u8207\u54e1\u5de5\u3002\u4e00\u500b\u90e8\u9580\u6709\u8a31\u591a\u54e1\u5de5\uff0c\u4f46\u6bcf\u4f4d\u54e1\u5de5\u50c5\u5c6c\u65bc\u4e00\u500b\u90e8\u9580\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u591a\u5c0d\u591a (M:N)<\/strong><\/td>\n<td>\u8868A\u4e2d\u7684\u591a\u7b46\u8a18\u9304\u8207\u8868B\u4e2d\u7684\u591a\u7b46\u8a18\u9304\u76f8\u95dc\u3002<\/td>\n<td>\u5b78\u751f\u8207\u8ab2\u7a0b\u3002\u4e00\u540d\u5b78\u751f\u9078\u4fee\u591a\u9580\u8ab2\u7a0b\uff0c\u800c\u4e00\u9580\u8ab2\u7a0b\u4e5f\u6709\u8a31\u591a\u5b78\u751f\u9078\u4fee\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728\u7d19\u4e0a\u7e6a\u88fd\u9019\u4e9b\u95dc\u4fc2\u6642\uff0c\u4f60\u9700\u8981\u60f3\u50cf\u7dda\u689d\u662f\u5982\u4f55\u9023\u63a5\u7684\u3002\u5c0d\u65bc\u591a\u5c0d\u591a\u95dc\u4fc2\uff0c\u901a\u5e38\u9700\u8981\u4e00\u500b\u806f\u7d50\u8868\uff08\u6216\u95dc\u806f\u5be6\u9ad4\uff09\u5c07\u9023\u63a5\u8f49\u63db\u70ba\u5169\u500b\u4e00\u5c0d\u591a\u95dc\u4fc2\u3002\u9019\u662f\u898f\u7bc4\u5316\u904e\u7a0b\u4e2d\u7684\u4e00\u500b\u95dc\u9375\u6b65\u9a5f\u3002<\/p>\n<h2>\u270d\ufe0f \u9078\u64c7\u4f60\u7684\u7b26\u865f\u98a8\u683c<\/h2>\n<p>\u7e6a\u88fdER\u5716\u6c92\u6709\u55ae\u4e00\u7684\u901a\u7528\u6a19\u6e96\uff0c\u4f46\u5169\u7a2e\u98a8\u683c\u4e3b\u5c0e\u4e86\u6574\u500b\u884c\u696d\u3002\u4e86\u89e3\u8a72\u4f7f\u7528\u54ea\u4e00\u7a2e\u98a8\u683c\uff0c\u6709\u52a9\u65bc\u4f60\u8207\u5176\u4ed6\u958b\u767c\u4eba\u54e1\u6709\u6548\u6e9d\u901a\u3002<\/p>\n<h3>1. \u4e4c\u9e26\u8db3\u7b26\u865f<\/h3>\n<p>\u9019\u662f\u73fe\u4ee3\u8cc7\u6599\u5eab\u8a2d\u8a08\u4e2d\u6700\u5e38\u898b\u7684\u98a8\u683c\u3002\u5b83\u5728\u95dc\u4fc2\u7dda\u672b\u7aef\u4f7f\u7528\u7b26\u865f\u4f86\u8868\u793a\u57fa\u6578\u3002<\/p>\n<ul>\n<li><strong>\u55ae\u7dda\uff1a<\/strong>\u8868\u793a\u5f37\u5236\u53c3\u8207\uff08\u5fc5\u9808\u5b58\u5728\uff09\u3002<\/li>\n<li><strong>\u83f1\u5f62\u6216\u53c9\u5f62\uff1a<\/strong>\u8868\u793a\u300c\u591a\u300d\u3002<\/li>\n<li><strong>\u77ed\u7dda\uff1a<\/strong>\u8868\u793a\u300c\u53ef\u9078\u300d\uff08\u96f6\uff09\u3002<\/li>\n<\/ul>\n<p>\u9019\u7a2e\u7b26\u865f\u7c21\u6f54\u660e\u77ad\uff0c\u4e26\u88ab\u5927\u591a\u6578SQL\u5de5\u5177\u5ee3\u6cdb\u652f\u63f4\u3002\u5b83\u975e\u5e38\u9069\u5408\u5728\u767d\u677f\u4e0a\u5feb\u901f\u8349\u5716\u3002<\/p>\n<h3>2. \u9673\u6c0f\u7b26\u865f<\/h3>\n<p>\u4ee5\u63d0\u51fa\u6b64\u6982\u5ff5\u7684\u5f7c\u5f97\u00b7\u9673\u547d\u540d\uff0c\u9019\u7a2e\u98a8\u683c\u4f7f\u7528\u83f1\u5f62\u8868\u793a\u95dc\u4fc2\uff0c\u4f7f\u7528\u6a62\u5713\u8868\u793a\u5c6c\u6027\u3002\u96d6\u7136\u8f03\u70ba\u5197\u9577\uff0c\u4f46\u975e\u5e38\u660e\u78ba\u3002<\/p>\n<ul>\n<li><strong>\u77e9\u5f62\uff1a<\/strong>\u5be6\u9ad4\u3002<\/li>\n<li><strong>\u83f1\u5f62\uff1a<\/strong>\u95dc\u4fc2\u3002<\/li>\n<li><strong>\u6a62\u5713\uff1a<\/strong>\u5c6c\u6027\u3002<\/li>\n<\/ul>\n<p>\u96d6\u7136\u9673\u6c0f\u7b26\u865f\u975e\u5e38\u9069\u5408\u7528\u65bc\u6559\u5b78\u6982\u5ff5\uff0c\u4f46\u7531\u65bc\u9700\u8981\u5927\u91cf\u5716\u5f62\uff0c\u5c0d\u8907\u96dc\u7684\u8cc7\u6599\u7d50\u69cb\u800c\u8a00\u5be6\u7528\u6027\u8f03\u4f4e\u3002\u5927\u591a\u6578\u5c08\u696d\u74b0\u5883\u90fd\u504f\u597d\u70cf\u9d09\u8db3\u7b26\u865f\uff0c\u56e0\u5176\u66f4\u70ba\u7dca\u6e4a\u3002<\/p>\n<h2>\ud83d\udcc4 \u6b65\u9a5f\u6559\u5b78\uff1a\u5efa\u7acb\u4f60\u7684\u7b2c\u4e00\u500b\u624b\u7e6aER\u5716<\/h2>\n<p>\u6e96\u5099\u597d\u7e6a\u5716\u4e86\u55ce\uff1f\u8b93\u6211\u5011\u4e00\u6b65\u6b65\u5efa\u7acb\u4e00\u500b\u7c21\u5316\u7dda\u4e0a\u66f8\u5e97\u7684\u8cc7\u6599\u7d50\u69cb\u3002\u6211\u5011\u5047\u8a2d\u4f60\u6709\u4e00\u5f35\u7a7a\u767d\u7d19\u5f35\u6216\u767d\u677f\u3002\u958b\u59cb\u6642\u4e0d\u9700\u8981\u4efb\u4f55\u8edf\u9ad4\u3002<\/p>\n<h3>\u6b65\u9a5f1\uff1a\u8b58\u5225\u5be6\u9ad4<\/h3>\n<p>\u4ed4\u7d30\u95b1\u8b80\u9700\u6c42\u3002\u4e3b\u8981\u7684\u540d\u8a5e\u662f\u4ec0\u9ebc\uff1f\u5728\u9019\u500b\u6848\u4f8b\u4e2d\uff0c\u6211\u5011\u9700\u8981\u8ffd\u8e64\uff1a<\/p>\n<ul>\n<li><strong>\u9867\u5ba2<\/strong>\uff08\u8cfc\u8cb7\u8005\uff09<\/li>\n<li><strong>\u8a02\u55ae<\/strong>\uff08\u4ea4\u6613\uff09<\/li>\n<li><strong>\u7522\u54c1<\/strong>\uff08\u88ab\u92b7\u552e\u7684\u7269\u54c1\uff09<\/li>\n<li><strong>\u5206\u985e<\/strong>\uff08\u9805\u76ee\u5982\u4f55\u5206\u7d44\uff09<\/li>\n<\/ul>\n<p>\u5728\u4f60\u7684\u7d19\u4e0a\u756b\u56db\u500b\u77e9\u5f62\uff0c\u4e26\u6e05\u695a\u5730\u6a19\u793a\u5b83\u5011\u3002<\/p>\n<h3>\u6b65\u9a5f 2\uff1a\u5b9a\u7fa9\u5c6c\u6027<\/h3>\n<p>\u91dd\u5c0d\u6bcf\u500b\u77e9\u5f62\uff0c\u5217\u51fa\u5fc5\u8981\u7684\u7d30\u7bc0\u3002\u76ee\u524d\u5148\u4fdd\u6301\u7c21\u55ae\u3002<\/p>\n<ul>\n<li><strong>\u5ba2\u6236\uff1a<\/strong> \u5ba2\u6236\u7de8\u865f\u3001\u540d\u5b57\u3001\u59d3\u6c0f\u3001\u96fb\u5b50\u90f5\u4ef6\u3001\u5730\u5740\u3002<\/li>\n<li><strong>\u8a02\u55ae\uff1a<\/strong> \u8a02\u55ae\u7de8\u865f\u3001\u8a02\u8cfc\u65e5\u671f\u3001\u7e3d\u91d1\u984d\u3001\u904b\u9001\u5730\u5740\u3002<\/li>\n<li><strong>\u7522\u54c1\uff1a<\/strong> \u7522\u54c1\u7de8\u865f\u3001\u540d\u7a31\u3001\u50f9\u683c\u3001\u5eab\u5b58\u6578\u91cf\u3002<\/li>\n<li><strong>\u985e\u5225\uff1a<\/strong> \u985e\u5225\u7de8\u865f\u3001\u985e\u5225\u540d\u7a31\u3001\u63cf\u8ff0\u3002<\/li>\n<\/ul>\n<p>\u5708\u51fa\u4e3b\u9375\u3002\u7528\u5e95\u7dda\u6a19\u793a<em>ID<\/em>\u6b04\u4f4d\uff0c\u4f7f\u5176\u986f\u8457\u7a81\u51fa\u3002<\/p>\n<h3>\u6b65\u9a5f 3\uff1a\u5efa\u7acb\u95dc\u4fc2\u5716<\/h3>\n<p>\u73fe\u5728\uff0c\u6839\u64da\u5546\u696d\u898f\u5247\uff0c\u5728\u5be6\u9ad4\u4e4b\u9593\u756b\u51fa\u9023\u7dda\u3002<\/p>\n<ul>\n<li><strong>\u5ba2\u6236\u81f3\u8a02\u55ae\uff1a<\/strong>\u4e00\u4f4d\u5ba2\u6236\u4e0b\u591a\u7b46\u8a02\u55ae\u3002\uff081:N\uff09<\/li>\n<li><strong>\u8a02\u55ae\u81f3\u7522\u54c1\uff1a<\/strong>\u4e00\u7b46\u8a02\u55ae\u5305\u542b\u591a\u9805\u7522\u54c1\u3002\u4e00\u9805\u7522\u54c1\u53ef\u51fa\u73fe\u5728\u591a\u7b46\u8a02\u55ae\u4e2d\u3002\uff08M:N\uff09<\/li>\n<li><strong>\u7522\u54c1\u81f3\u985e\u5225\uff1a<\/strong>\u4e00\u9805\u7522\u54c1\u5c6c\u65bc\u4e00\u500b\u985e\u5225\u3002\u4e00\u500b\u985e\u5225\u5305\u542b\u591a\u9805\u7522\u54c1\u3002\uff081:N\uff09<\/li>\n<\/ul>\n<h3>\u6b65\u9a5f 4\uff1a\u89e3\u6c7a\u591a\u5c0d\u591a\u95dc\u4fc2<\/h3>\n<p>\u4f60\u5df2\u8b58\u5225\u51fa<strong>\u8a02\u55ae<\/strong>\u8207<strong>\u7522\u54c1<\/strong>\u8a02\u55ae\u8207\u7522\u54c1\u4e4b\u9593\u5b58\u5728\u591a\u5c0d\u591a\u95dc\u4fc2\u3002\u5728\u5be6\u9ad4\u8cc7\u6599\u5eab\u4e2d\uff0c\u82e5\u7121\u6a4b\u63a5\u8868\uff0c\u7121\u6cd5\u76f4\u63a5\u756b\u51fa\u5169\u8005\u4e4b\u9593\u7684\u9023\u7dda\u3002\u4f60\u9700\u8981\u5efa\u7acb\u4e00\u500b\u65b0\u7684\u5be6\u9ad4\u3002<\/p>\n<ul>\n<li>\u5efa\u7acb\u4e00\u500b\u65b0\u7684\u77e9\u5f62\uff0c\u547d\u540d\u70ba<strong>\u8a02\u55ae\u9805\u76ee<\/strong>.<\/li>\n<li>\u9023\u7d50<strong>\u8a02\u55ae<\/strong>\u81f3<strong>\u8a02\u55ae\u9805\u76ee<\/strong>\uff081:N\uff09\u3002<\/li>\n<li>\u9023\u7d50<strong>\u7522\u54c1<\/strong>\u81f3<strong>\u8a02\u55ae\u9805\u76ee<\/strong>\uff081:N\uff09\u3002<\/li>\n<li>\u70ba<strong>\u8a02\u55ae\u9805\u76ee<\/strong>\uff1a\u6578\u91cf\uff0c\u5c0f\u8a08\u3002<\/li>\n<\/ul>\n<p>\u6b64\u6b65\u9a5f\u5c07\u60a8\u7684\u6982\u5ff5\u6a21\u578b\u8f49\u63db\u70ba\u53ef\u57f7\u884c\u7684\u908f\u8f2f\u6a21\u578b\u3002<\/p>\n<h2>\ud83d\udeab \u61c9\u907f\u514d\u7684\u5e38\u898b\u9677\u9631<\/h2>\n<p>\u5373\u4f7f\u5c0d\u6982\u5ff5\u6709\u7a69\u56fa\u7684\u7406\u89e3\uff0c\u521d\u5b78\u8005\u4ecd\u7d93\u5e38\u72af\u4e0b\u4f7f\u8cc7\u6599\u7d50\u69cb\u8907\u96dc\u5316\u7684\u932f\u8aa4\u3002\u8acb\u7559\u610f\u9019\u4e9b\u5e38\u898b\u554f\u984c\u3002<\/p>\n<h3>1. \u547d\u540d\u885d\u7a81<\/h3>\n<p>\u4f7f\u7528\u50cf<em>Data1<\/em>\u6216<em>TableA<\/em>\u9019\u6a23\u7684\u901a\u7528\u540d\u7a31\u6703\u8b93\u5716\u8868\u96e3\u4ee5\u95b1\u8b80\u3002\u61c9\u4f7f\u7528\u5177\u63cf\u8ff0\u6027\u7684\u696d\u52d9\u540d\u7a31\u3002\u4f8b\u5982\uff0c\u4e0d\u8981\u4f7f\u7528<em>FK_Customer<\/em>\uff0c\u800c\u61c9\u4f7f\u7528<em>CustomerID<\/em>\u3002\u547d\u540d\u898f\u7bc4\u7684\u4e00\u81f4\u6027\u5c0d\u65bc\u9577\u671f\u7dad\u8b77\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h3>2. \u904e\u5ea6\u898f\u7bc4\u5316<\/h3>\n<p>\u96d6\u7136\u898f\u7bc4\u5316\u80fd\u6e1b\u5c11\u5197\u9918\uff0c\u4f46\u5efa\u7acb\u904e\u591a\u7684\u8cc7\u6599\u8868\u6703\u4f7f\u67e5\u8a62\u8b8a\u6162\u4e14\u8907\u96dc\u3002\u82e5\u67d0\u500b\u95dc\u4fc2\u5f88\u5c11\u88ab\u67e5\u8a62\uff0c\u5efa\u8b70\u5c07\u8cc7\u6599\u4fdd\u7559\u5728\u55ae\u4e00\u8cc7\u6599\u8868\u4e2d\u4ee5\u63d0\u5347\u6548\u80fd\u3002\u9700\u5728\u8cc7\u6599\u5b8c\u6574\u6027\u8207\u53ef\u7528\u6027\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n<h3>3. \u5ffd\u7565\u7a7a\u503c<\/h3>\n<p>\u59cb\u7d42\u8003\u616e\u6b04\u4f4d\u662f\u5426\u53ef\u80fd\u70ba\u7a7a\u3002\u5982\u679c\u4e00\u500b<strong>\u5ba2\u6236<\/strong>\u8a3b\u518a\u6642\u5fc5\u9808\u6709\u96fb\u5b50\u90f5\u4ef6\uff0c\u8acb\u6a19\u8a18\u70ba\u975e\u7a7a\u503c\u3002\u5982\u679c\u4e00\u500b<strong>\u7522\u54c1<\/strong>\u53ef\u80fd\u5c1a\u672a\u5206\u914d<strong>\u985e\u5225<\/strong>\uff0c\u5141\u8a31\u5176\u70ba\u7a7a\u503c\u3002\u6b64\u908f\u8f2f\u61c9\u5c6c\u65bc\u5716\u8868\u7684\u7d04\u675f\u689d\u4ef6\u3002<\/p>\n<h3>4. \u9806\u74b0\u4f9d\u8cf4<\/h3>\n<p>\u907f\u514d\u5efa\u7acb\u5faa\u74b0\uff0c\u5176\u4e2d\u5be6\u9ad4A\u4f9d\u8cf4B\uff0cB\u4f9d\u8cf4C\uff0c\u800cC\u53c8\u4f9d\u8cf4A\u3002\u9019\u6703\u5728\u8cc7\u6599\u63d2\u5165\u6642\u9020\u6210\u908f\u8f2f\u6b7b\u7d50\u3002\u52d9\u5fc5\u78ba\u4fdd\u8cc7\u6599\u5177\u6709\u660e\u78ba\u7684\u5c64\u6b21\u7d50\u69cb\u6216\u5165\u53e3\u9ede\u3002<\/p>\n<h2>\ud83d\udcc8 \u5f9e\u7d19\u4e0a\u5230\u751f\u7522\u74b0\u5883<\/h2>\n<p>\u7576\u60a8\u7684\u624b\u7e6a\u5716\u8868\u5b8c\u6210\u4e26\u7372\u5f97\u6279\u51c6\u5f8c\uff0c\u5c31\u8a72\u5c07\u5176\u8f49\u63db\u70ba\u8cc7\u6599\u5eab\u4e86\u3002\u6b64\u904e\u7a0b\u7a31\u70ba\u5be6\u9ad4\u5efa\u6a21\u3002<\/p>\n<h3>1. \u8f49\u63db\u70baSQL<\/h3>\n<p>\u6bcf\u500b\u77e9\u5f62\u6703\u8b8a\u6210\u4e00\u500b<code>CREATE TABLE<\/code>\u8a9e\u53e5\u3002\u6bcf\u500b\u4e3b\u9375\u6703\u8b8a\u6210\u4e00\u500b<code>PRIMARY KEY<\/code>\u7d04\u675f\u3002\u6bcf\u689d\u95dc\u4fc2\u7dda\u6703\u8b8a\u6210\u4e00\u500b<code>FOREIGN KEY<\/code>\u7d04\u675f\u3002\u60a8\u53ef\u4ee5\u624b\u52d5\u64b0\u5beb\uff0c\u6216\u4f7f\u7528\u8cc7\u6599\u5eab\u5ba2\u6236\u7aef\u3002<\/p>\n<h3>2. 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