{"id":106,"date":"2026-04-02T05:01:30","date_gmt":"2026-04-02T05:01:30","guid":{"rendered":"https:\/\/www.we-notes.com\/cn\/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\/cn\/quick-start-er-diagrams-build-first-schema-15-minutes\/","title":{"rendered":"ER\u56fe\u5feb\u901f\u5165\u95e8\uff1a\u65e0\u9700\u5de5\u5177\uff0c15\u5206\u949f\u5185\u6784\u5efa\u4f60\u7684\u7b2c\u4e00\u4e2a\u6570\u636e\u6a21\u578b"},"content":{"rendered":"<p>\u8bbe\u8ba1\u6570\u636e\u5e93\u7ed3\u6784\u662f\u8f6f\u4ef6\u5f00\u53d1\u4e2d\u7684\u57fa\u7840\u6b65\u9aa4\uff0c\u4f46\u5bf9\u521d\u5b66\u8005\u6765\u8bf4\u5f80\u5f80\u4ee4\u4eba\u671b\u800c\u751f\u754f\u3002\u4f60\u53ef\u80fd\u4f1a\u8ba4\u4e3a\u9700\u8981\u6602\u8d35\u7684\u8f6f\u4ef6\u624d\u80fd\u5f00\u59cb\uff0c\u4f46\u5b9e\u9645\u4e0a\uff0c\u6570\u636e\u5efa\u6a21\u7684\u6838\u5fc3\u903b\u8f91\u72ec\u7acb\u4e8e\u4efb\u4f55\u7279\u5b9a\u5e94\u7528\u800c\u5b58\u5728\u3002\u672c\u6307\u5357\u805a\u7126\u4e8e<strong>\u5b9e\u4f53\u5173\u7cfb\u56fe<\/strong>\uff08ERD\uff09\u7684\u57fa\u672c\u539f\u7406\u3002\u901a\u8fc7\u53bb\u9664\u6570\u5b57\u6742\u4e71\uff0c\u4f60\u53ea\u9700\u4e00\u652f\u7b14\u548c\u4e00\u5f20\u7eb8\u5c31\u80fd\u7406\u89e3\u6570\u636e\u7684\u67b6\u6784\u3002<\/p>\n<p>\u5b66\u4e60\u624b\u52a8\u7ed8\u5236\u4e00\u4e2a<strong>ER\u56fe<\/strong>\u624b\u52a8\u7ed8\u5236ER\u56fe\u80fd\u953b\u70bc\u4f60\u7684\u903b\u8f91\u601d\u7ef4\u80fd\u529b\u3002\u5b83\u8feb\u4f7f\u4f60\u5728\u7f16\u5199\u4efb\u4f55\u4ee3\u7801\u4e4b\u524d\uff0c\u6e05\u6670\u5730\u5b9a\u4e49\u5173\u7cfb\u3002\u65e0\u8bba\u4f60\u662f\u5728\u8bbe\u8ba1\u4e00\u4e2a\u7b80\u5355\u7684\u5e93\u5b58\u7cfb\u7edf\uff0c\u8fd8\u662f\u4e00\u4e2a\u590d\u6742\u7684\u7535\u5b50\u5546\u52a1\u5e73\u53f0\uff0c\u8fd9\u4e9b\u539f\u5219\u90fd\u662f\u4e00\u81f4\u7684\u3002\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u6570\u636e\u5e93\u6a21\u5f0f\u7684\u6784\u6210\uff0c\u5982\u4f55\u6620\u5c04\u5173\u7cfb\uff0c\u4ee5\u53ca\u5982\u4f55\u5728\u4e0d\u4f9d\u8d56\u81ea\u52a8\u5316\u5de5\u5177\u7684\u60c5\u51b5\u4e0b\u53ef\u89c6\u5316\u6570\u636e\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\u4e48\u662fER\u56fe\uff1f<\/h2>\n<p>\u5b9e\u4f53\u5173\u7cfb\u56fe\u662f\u7cfb\u7edf\u4e2d\u6570\u636e\u7ec4\u7ec7\u65b9\u5f0f\u7684\u53ef\u89c6\u5316\u8868\u793a\u3002\u5b83\u662f\u4f60\u6570\u636e\u5e93\u7684\u84dd\u56fe\u3002\u4f60\u4e0d\u4f1a\u7acb\u5373\u770b\u5230\u884c\u548c\u5217\uff0c\u800c\u662f\u5173\u6ce8\u5bf9\u8c61\uff08\u5b9e\u4f53\uff09\u53ca\u5176\u76f8\u4e92\u4f5c\u7528\uff08\u5173\u7cfb\uff09\u3002\u8fd9\u79cd\u9ad8\u5c42\u6b21\u7684\u89c6\u56fe\u6709\u52a9\u4e8e\u5229\u76ca\u76f8\u5173\u8005\u7406\u89e3\u6570\u636e\u7ed3\u6784\u4e2d\u5d4c\u5165\u7684\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n<p>\u5f53\u4f60\u521b\u5efaER\u56fe\u65f6\uff0c\u5b9e\u9645\u4e0a\u662f\u5728\u4e3a\u6bcf\u4e00\u6761\u6570\u636e\u56de\u7b54\u4e09\u4e2a\u57fa\u672c\u95ee\u9898\uff1a<\/p>\n<ul>\n<li><strong>\u662f\u4ec0\u4e48<\/strong>\u5728\u63cf\u8ff0\u4ec0\u4e48\uff1f\uff08\u5b9e\u4f53\uff09<\/li>\n<li><strong>\u662f\u4ec0\u4e48<\/strong>\u7ec6\u8282\u5b9a\u4e49\u4e86\u8be5\u5bf9\u8c61\uff1f\uff08\u5c5e\u6027\uff09<\/li>\n<li><strong>\u5982\u4f55<\/strong>\u4e0e\u5176\u5b83\u5bf9\u8c61\u5982\u4f55\u8fde\u63a5\uff1f\uff08\u5173\u7cfb\uff09<\/li>\n<\/ul>\n<p>\u5982\u679c\u6ca1\u6709\u8fd9\u4e9b\u89c6\u89c9\u8f85\u52a9\u5de5\u5177\uff0c\u6570\u636e\u5e93\u8bbe\u8ba1\u5f80\u5f80\u4f1a\u53d8\u6210\u4e00\u79cd\u731c\u6d4b\u3002\u4f60\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u5197\u4f59\uff0c\u6216\u9057\u6f0f\u5173\u952e\u8fde\u63a5\uff0c\u4ece\u800c\u5728\u540e\u671f\u7834\u574f\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u4e00\u4e2a\u7ed3\u6784\u826f\u597d\u7684\u56fe\u8868\u53ef\u4ee5\u5728\u95ee\u9898\u53d1\u751f\u524d\u5c31\u907f\u514d\u8fd9\u4e9b\u9690\u60a3\u3002<\/p>\n<h2>\ud83e\uddf1 \u6a21\u5f0f\u7684\u6838\u5fc3\u7ec4\u6210\u90e8\u5206<\/h2>\n<p>\u5728\u7ed8\u5236\u4efb\u4f55\u7ebf\u6761\u4e4b\u524d\uff0c\u4f60\u5fc5\u987b\u7406\u89e3\u57fa\u672c\u6784\u4ef6\u3002\u6bcf\u4e2aER\u56fe\u90fd\u7531\u4e09\u4e2a\u4e3b\u8981\u5143\u7d20\u6784\u6210\u3002\u5982\u679c\u9057\u6f0f\u4efb\u4f55\u4e00\u4e2a\uff0c\u6a21\u578b\u5c31\u662f\u4e0d\u5b8c\u6574\u7684\u3002<\/p>\n<h3>1. \u5b9e\u4f53<\/h3>\n<p>\u5b9e\u4f53\u4ee3\u8868\u4f60\u5e0c\u671b\u5b58\u50a8\u4fe1\u606f\u7684\u73b0\u5b9e\u4e16\u754c\u5bf9\u8c61\u6216\u6982\u5ff5\u3002\u5728\u7269\u7406\u6570\u636e\u5e93\u4e2d\uff0c\u8fd9\u5bf9\u5e94\u4e8e\u4e00\u5f20\u8868\u3002\u5728\u56fe\u8868\u4e2d\uff0c\u901a\u5e38\u7528\u77e9\u5f62\u8868\u793a\u3002<\/p>\n<ul>\n<li><strong>\u793a\u4f8b\uff1a<\/strong>\u5728\u56fe\u4e66\u9986\u7cfb\u7edf\u4e2d\uff0c<em>\u56fe\u4e66<\/em>, <em>\u4f5c\u8005<\/em>\uff0c\u4ee5\u53ca<em>\u4f1a\u5458<\/em>\u90fd\u662f\u5b9e\u4f53\u3002<\/li>\n<li><strong>\u793a\u4f8b\uff1a<\/strong> \u5728\u4e00\u4e2a\u7535\u5b50\u5546\u52a1\u5546\u5e97\u4e2d\uff0c<em>\u4ea7\u54c1<\/em>, <em>\u5ba2\u6237<\/em>\uff0c\u4ee5\u53ca<em>\u8ba2\u5355<\/em> \u90fd\u662f\u5b9e\u4f53\u3002<\/li>\n<\/ul>\n<h3>2. \u5c5e\u6027<\/h3>\n<p>\u5c5e\u6027\u662f\u63cf\u8ff0\u5b9e\u4f53\u7684\u7279\u5b9a\u4fe1\u606f\u3002\u8fd9\u4e9b\u4fe1\u606f\u5c06\u6210\u4e3a\u6570\u636e\u5e93\u8868\u4e2d\u7684\u5217\u3002\u5b83\u4eec\u5b9a\u4e49\u4e86\u5bf9\u8c61\u7684\u5c5e\u6027\u3002<\/p>\n<ul>\n<li><strong>\u793a\u4f8b\uff1a<\/strong> \u5bf9\u4e8e<em>\u4f1a\u5458<\/em> \u5b9e\u4f53\uff0c\u5c5e\u6027\u53ef\u80fd\u5305\u62ec<em>\u4f1a\u5458ID<\/em>, <em>\u59d3\u540d<\/em>, <em>\u7535\u5b50\u90ae\u4ef6<\/em>\uff0c\u4ee5\u53ca<em>\u52a0\u5165\u65e5\u671f<\/em>.<\/li>\n<li><strong>\u4e3b\u952e\uff1a<\/strong> \u6bcf\u6761\u8bb0\u5f55\u4e2d\u5fc5\u987b\u6709\u4e00\u4e2a\u5c5e\u6027\u662f\u552f\u4e00\u7684\u3002\u8fd9\u901a\u5e38\u7528\u4e0b\u5212\u7ebf\u6216\u660e\u663e\u6807\u8bb0\u3002\u5bf9\u4e8e<em>\u4f1a\u5458<\/em>\uff0c<em>\u4f1a\u5458ID<\/em> \u662f\u4e3b\u952e\u3002<\/li>\n<li><strong>\u5916\u952e\uff1a<\/strong> \u4e00\u4e2a\u94fe\u63a5\u5230\u53e6\u4e00\u4e2a\u5b9e\u4f53\u4e3b\u952e\u7684\u5c5e\u6027\u3002<\/li>\n<\/ul>\n<h3>3. \u5173\u7cfb<\/h3>\n<p>\u5173\u7cfb\u5b9a\u4e49\u4e86\u5b9e\u4f53\u4e4b\u95f4\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002\u8fde\u63a5\u4e24\u4e2a\u77e9\u5f62\u7684\u7ebf\u6761\u8868\u793a\u4e00\u79cd\u5173\u7cfb\u3002\u8fd9\u8868\u660e\u4e00\u4e2a\u5b9e\u4f53\u4e2d\u7684\u6570\u636e\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u4e2d\u7684\u6570\u636e\u76f8\u5173\u8054\u3002<\/p>\n<ul>\n<li><strong>\u793a\u4f8b\uff1a<\/strong> \u4e00\u672c <em>\u4f1a\u5458<\/em> \u53ef\u4ee5\u501f\u9605\u8bb8\u591a <em>\u4e66\u7c4d<\/em>.<\/li>\n<li><strong>\u793a\u4f8b\uff1a<\/strong> \u4e00\u672c <em>\u4e66<\/em> \u6709\u4e00\u4e2a\u7279\u5b9a\u7684 <em>\u4f5c\u8005<\/em>.<\/li>\n<\/ul>\n<h2>\ud83d\udd17 \u7406\u89e3\u5173\u7cfb\u4e0e\u57fa\u6570<\/h2>\n<p>\u57fa\u6570\u662fER\u5efa\u6a21\u4e2d\u6700\u5173\u952e\u7684\u6982\u5ff5\u3002\u5b83\u5b9a\u4e49\u4e86\u5b9e\u4f53\u4e4b\u95f4\u7684\u6570\u91cf\u5173\u7cfb\u3002\u5b83\u56de\u7b54\u4e86\u8fd9\u6837\u4e00\u4e2a\u95ee\u9898\uff1a\u201c\u5b9e\u4f53A\u7684\u591a\u5c11\u4e2a\u5b9e\u4f8b\u4e0e\u5b9e\u4f53B\u7684\u4e00\u4e2a\u5b9e\u4f8b\u76f8\u5173\u8054\uff1f\u201d \u5bf9\u57fa\u6570\u7684\u8bef\u89e3\u4f1a\u5bfc\u81f4\u6570\u636e\u91cd\u590d\u6216\u5b64\u7acb\u8bb0\u5f55\u3002<\/p>\n<p>\u4f60\u5c06\u9047\u5230\u4e09\u79cd\u4e3b\u8981\u7684\u57fa\u6570\u7c7b\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\u6570\u7c7b\u578b<\/strong><\/th>\n<th><strong>\u63cf\u8ff0<\/strong><\/th>\n<th><strong>\u73b0\u5b9e\u4e16\u754c\u793a\u4f8b<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u4e00\u5bf9\u4e00\uff081:1\uff09<\/strong><\/td>\n<td>\u8868A\u4e2d\u7684\u4e00\u4e2a\u8bb0\u5f55\u6070\u597d\u4e0e\u8868B\u4e2d\u7684\u4e00\u4e2a\u8bb0\u5f55\u76f8\u5173\u8054\u3002<\/td>\n<td>\u4e00\u4e2a\u4eba\u53ca\u5176\u62a4\u7167\u3002\u4e00\u4e2a\u4eba\u6709\u4e00\u672c\u62a4\u7167\uff1b\u4e00\u672c\u62a4\u7167\u5c5e\u4e8e\u4e00\u4e2a\u4eba\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e00\u5bf9\u591a\uff081:N\uff09<\/strong><\/td>\n<td>\u8868A\u4e2d\u7684\u4e00\u4e2a\u8bb0\u5f55\u4e0e\u8868B\u4e2d\u7684\u591a\u4e2a\u8bb0\u5f55\u76f8\u5173\u8054\u3002\u53cd\u4e4b\u5219\u4e0d\u6210\u7acb\u3002<\/td>\n<td>\u4e00\u4e2a\u90e8\u95e8\u548c\u5458\u5de5\u3002\u4e00\u4e2a\u90e8\u95e8\u6709\u591a\u4e2a\u5458\u5de5\uff0c\u4f46\u6bcf\u4e2a\u5458\u5de5\u53ea\u5c5e\u4e8e\u4e00\u4e2a\u90e8\u95e8\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u591a\u5bf9\u591a\uff08M:N\uff09<\/strong><\/td>\n<td>\u8868A\u4e2d\u7684\u591a\u4e2a\u8bb0\u5f55\u4e0e\u8868B\u4e2d\u7684\u591a\u4e2a\u8bb0\u5f55\u76f8\u5173\u8054\u3002<\/td>\n<td>\u5b66\u751f\u548c\u8bfe\u7a0b\u3002\u4e00\u4e2a\u5b66\u751f\u9009\u4fee\u591a\u95e8\u8bfe\u7a0b\uff0c\u4e00\u95e8\u8bfe\u7a0b\u6709\u591a\u4e2a\u5b66\u751f\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728\u7eb8\u4e0a\u7ed8\u5236\u8fd9\u4e9b\u5173\u7cfb\u65f6\uff0c\u4f60\u9700\u8981\u60f3\u8c61\u7ebf\u6761\u662f\u5982\u4f55\u8fde\u63a5\u7684\u3002\u5bf9\u4e8e\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u901a\u5e38\u9700\u8981\u4e00\u4e2a\u8fde\u63a5\u8868\uff08\u6216\u5173\u8054\u5b9e\u4f53\uff09\u5c06\u8fde\u63a5\u5206\u89e3\u4e3a\u4e24\u4e2a\u4e00\u5bf9\u591a\u5173\u7cfb\u3002\u8fd9\u662f\u89c4\u8303\u5316\u8fc7\u7a0b\u4e2d\u7684\u5173\u952e\u6b65\u9aa4\u3002<\/p>\n<h2>\u270d\ufe0f \u9009\u62e9\u4f60\u7684\u7b26\u53f7\u8868\u793a\u98ce\u683c<\/h2>\n<p>\u7ed8\u5236ER\u56fe\u6ca1\u6709\u5355\u4e00\u7684\u901a\u7528\u6807\u51c6\uff0c\u4f46\u6709\u4e24\u79cd\u98ce\u683c\u5728\u884c\u4e1a\u4e2d\u5360\u4e3b\u5bfc\u5730\u4f4d\u3002\u4e86\u89e3\u4f7f\u7528\u54ea\u79cd\u98ce\u683c\u6709\u52a9\u4e8e\u4f60\u4e0e\u5176\u4ed6\u5f00\u53d1\u4eba\u5458\u6709\u6548\u6c9f\u901a\u3002<\/p>\n<h3>1. \u4e4c\u9e26\u8db3\u7b26\u53f7\u6cd5<\/h3>\n<p>\u8fd9\u662f\u73b0\u4ee3\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\u6700\u5e38\u7528\u7684\u4e00\u79cd\u98ce\u683c\u3002\u5b83\u5728\u5173\u7cfb\u7ebf\u672b\u7aef\u4f7f\u7528\u7b26\u53f7\u6765\u8868\u793a\u57fa\u6570\u3002<\/p>\n<ul>\n<li><strong>\u5355\u7ebf\uff1a<\/strong>\u8868\u793a\u5f3a\u5236\u53c2\u4e0e\uff08\u5fc5\u987b\u5b58\u5728\uff09\u3002<\/li>\n<li><strong>\u83f1\u5f62\u6216\u53c9\u5f62\uff1a<\/strong>\u8868\u793a\u201c\u591a\u201d\u4e2a\u3002<\/li>\n<li><strong>\u77ed\u6a2a\u7ebf\uff1a<\/strong>\u8868\u793a\u201c\u53ef\u9009\u201d\uff08\u96f6\u4e2a\uff09\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u79cd\u7b26\u53f7\u6cd5\u7b80\u6d01\u660e\u4e86\uff0c\u88ab\u5927\u591a\u6570SQL\u5de5\u5177\u5e7f\u6cdb\u652f\u6301\u3002\u5b83\u975e\u5e38\u9002\u5408\u5728\u767d\u677f\u4e0a\u5feb\u901f\u7ed8\u5236\u8349\u56fe\u3002<\/p>\n<h3>2. \u9648\u6c0f\u7b26\u53f7\u6cd5<\/h3>\n<p>\u4ee5\u63d0\u51fa\u8be5\u6982\u5ff5\u7684\u5f7c\u5f97\u00b7\u9648\u547d\u540d\uff0c\u8fd9\u79cd\u98ce\u683c\u4f7f\u7528\u83f1\u5f62\u8868\u793a\u5173\u7cfb\uff0c\u692d\u5706\u8868\u793a\u5c5e\u6027\u3002\u867d\u7136\u66f4\u5197\u957f\uff0c\u4f46\u975e\u5e38\u660e\u786e\u3002<\/p>\n<ul>\n<li><strong>\u77e9\u5f62\uff1a<\/strong>\u5b9e\u4f53\u3002<\/li>\n<li><strong>\u83f1\u5f62\uff1a<\/strong>\u5173\u7cfb\u3002<\/li>\n<li><strong>\u692d\u5706\uff1a<\/strong>\u5c5e\u6027\u3002<\/li>\n<\/ul>\n<p>\u5c3d\u7ba1\u9648\u6c0f\u7b26\u53f7\u6cd5\u975e\u5e38\u9002\u5408\u6559\u5b66\u6982\u5ff5\uff0c\u4f46\u7531\u4e8e\u9700\u8981\u5927\u91cf\u56fe\u5f62\uff0c\u5bf9\u4e8e\u590d\u6742\u6a21\u5f0f\u6765\u8bf4\u5b9e\u7528\u6027\u8f83\u4f4e\u3002\u5927\u591a\u6570\u4e13\u4e1a\u73af\u5883\u66f4\u503e\u5411\u4e8e\u4f7f\u7528\u4e4c\u9e26\u8db3\u7b26\u53f7\u6cd5\uff0c\u56e0\u5176\u66f4\u7d27\u51d1\u3002<\/p>\n<h2>\ud83d\udcc4 \u9010\u6b65\u6307\u5357\uff1a\u6784\u5efa\u4f60\u7684\u7b2c\u4e00\u4e2a\u624b\u52a8ER\u56fe<\/h2>\n<p>\u51c6\u5907\u5f00\u59cb\u7ed8\u5236\u4e86\u5417\uff1f\u8ba9\u6211\u4eec\u4e00\u6b65\u6b65\u521b\u5efa\u4e00\u4e2a\u7b80\u5316\u7248\u5728\u7ebf\u4e66\u5e97\u7684\u6a21\u5f0f\u3002\u6211\u4eec\u5047\u8bbe\u4f60\u6709\u4e00\u5f20\u7a7a\u767d\u7eb8\u6216\u767d\u677f\u3002\u5f00\u59cb\u65f6\u65e0\u9700\u4efb\u4f55\u8f6f\u4ef6\u3002<\/p>\n<h3>\u6b65\u9aa41\uff1a\u8bc6\u522b\u5b9e\u4f53<\/h3>\n<p>\u901a\u8bfb\u9700\u6c42\u3002\u4e3b\u8981\u7684\u540d\u8bcd\u662f\u4ec0\u4e48\uff1f\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u8ffd\u8e2a\uff1a<\/p>\n<ul>\n<li><strong>\u5ba2\u6237<\/strong>\uff08\u8d2d\u4e70\u8005\uff09<\/li>\n<li><strong>\u8ba2\u5355<\/strong>\uff08\u4ea4\u6613\uff09<\/li>\n<li><strong>\u4ea7\u54c1<\/strong>\uff08\u88ab\u9500\u552e\u7684\u5546\u54c1\uff09<\/li>\n<li><strong>\u7c7b\u522b<\/strong>\uff08\u9879\u76ee\u5982\u4f55\u5206\u7ec4\uff09<\/li>\n<\/ul>\n<p>\u5728\u4f60\u7684\u7eb8\u4e0a\u753b\u56db\u4e2a\u77e9\u5f62\uff0c\u5e76\u6e05\u6670\u5730\u6807\u4e0a\u6807\u7b7e\u3002<\/p>\n<h3>\u6b65\u9aa42\uff1a\u5b9a\u4e49\u5c5e\u6027<\/h3>\n<p>\u4e3a\u6bcf\u4e2a\u77e9\u5f62\u5217\u51fa\u5fc5\u8981\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u76ee\u524d\u4fdd\u6301\u7b80\u5355\u3002<\/p>\n<ul>\n<li><strong>\u5ba2\u6237\uff1a<\/strong> \u5ba2\u6237ID\uff0c\u540d\u5b57\uff0c\u59d3\u6c0f\uff0c\u7535\u5b50\u90ae\u4ef6\uff0c\u5730\u5740\u3002<\/li>\n<li><strong>\u8ba2\u5355\uff1a<\/strong> \u8ba2\u5355ID\uff0c\u8ba2\u5355\u65e5\u671f\uff0c\u603b\u91d1\u989d\uff0c\u914d\u9001\u5730\u5740\u3002<\/li>\n<li><strong>\u4ea7\u54c1\uff1a<\/strong> \u4ea7\u54c1ID\uff0c\u540d\u79f0\uff0c\u4ef7\u683c\uff0c\u5e93\u5b58\u6570\u91cf\u3002<\/li>\n<li><strong>\u7c7b\u522b\uff1a<\/strong> \u7c7b\u522bID\uff0c\u7c7b\u522b\u540d\u79f0\uff0c\u63cf\u8ff0\u3002<\/li>\n<\/ul>\n<p>\u5708\u51fa\u4e3b\u952e\u3002\u7528\u4e0b\u5212\u7ebf\u6807\u51fa<em>ID<\/em>\u5b57\u6bb5\uff0c\u4f7f\u5176\u7a81\u51fa\u663e\u793a\u3002<\/p>\n<h3>\u6b65\u9aa43\uff1a\u6620\u5c04\u5173\u7cfb<\/h3>\n<p>\u73b0\u5728\uff0c\u6839\u636e\u4e1a\u52a1\u89c4\u5219\u5728\u5b9e\u4f53\u4e4b\u95f4\u753b\u7ebf\u3002<\/p>\n<ul>\n<li><strong>\u5ba2\u6237\u5230\u8ba2\u5355\uff1a<\/strong>\u4e00\u4e2a\u5ba2\u6237\u4e0b\u591a\u4e2a\u8ba2\u5355\u3002\uff081:N\uff09<\/li>\n<li><strong>\u8ba2\u5355\u5230\u4ea7\u54c1\uff1a<\/strong>\u4e00\u4e2a\u8ba2\u5355\u5305\u542b\u591a\u4e2a\u4ea7\u54c1\u3002\u4e00\u4e2a\u4ea7\u54c1\u53ef\u4ee5\u51fa\u73b0\u5728\u591a\u4e2a\u8ba2\u5355\u4e2d\u3002\uff08M:N\uff09<\/li>\n<li><strong>\u4ea7\u54c1\u5230\u7c7b\u522b\uff1a<\/strong>\u4e00\u4e2a\u4ea7\u54c1\u5c5e\u4e8e\u4e00\u4e2a\u7c7b\u522b\u3002\u4e00\u4e2a\u7c7b\u522b\u5305\u542b\u591a\u4e2a\u4ea7\u54c1\u3002\uff081:N\uff09<\/li>\n<\/ul>\n<h3>\u6b65\u9aa44\uff1a\u89e3\u51b3\u591a\u5bf9\u591a\u5173\u7cfb<\/h3>\n<p>\u4f60\u5df2\u8bc6\u522b\u51fa<strong>\u8ba2\u5355<\/strong>\u548c<strong>\u4ea7\u54c1<\/strong>\u4e4b\u95f4\u5b58\u5728\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u5728\u7269\u7406\u6570\u636e\u5e93\u4e2d\uff0c\u82e5\u6ca1\u6709\u4e2d\u95f4\u6865\u6881\uff0c\u65e0\u6cd5\u76f4\u63a5\u5728\u5b83\u4eec\u4e4b\u95f4\u753b\u7ebf\u3002\u4f60\u9700\u8981\u4e00\u4e2a\u65b0\u5b9e\u4f53\u3002<\/p>\n<ul>\n<li>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a<strong>\u8ba2\u5355\u9879<\/strong>.<\/li>\n<li>\u5173\u8054<strong>\u8ba2\u5355<\/strong>\u5230<strong>\u8ba2\u5355\u9879<\/strong> \uff081:N\uff09\u3002<\/li>\n<li>\u5173\u8054<strong>\u4ea7\u54c1<\/strong>\u5230<strong>\u8ba2\u5355\u9879<\/strong> \uff081:N\uff09\u3002<\/li>\n<li>\u4e3a<strong>\u8ba2\u5355\u9879<\/strong>\uff1a\u6570\u91cf\uff0c\u5c0f\u8ba1\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e00\u6b65\u5c06\u60a8\u7684\u6982\u5ff5\u6a21\u578b\u8f6c\u5316\u4e3a\u53ef\u5b9e\u65bd\u7684\u903b\u8f91\u6a21\u578b\u3002<\/p>\n<h2>\ud83d\udeab \u9700\u8981\u907f\u514d\u7684\u5e38\u89c1\u9677\u9631<\/h2>\n<p>\u5373\u4f7f\u5bf9\u6982\u5ff5\u6709\u624e\u5b9e\u7684\u7406\u89e3\uff0c\u521d\u5b66\u8005\u4e5f\u5e38\u5e38\u72af\u4e00\u4e9b\u4f1a\u4f7f\u6a21\u5f0f\u53d8\u5f97\u590d\u6742\u7684\u9519\u8bef\u3002\u8bf7\u6ce8\u610f\u8fd9\u4e9b\u5e38\u89c1\u95ee\u9898\u3002<\/p>\n<h3>1. \u547d\u540d\u51b2\u7a81<\/h3>\n<p>\u4f7f\u7528\u50cf<em>Data1<\/em>\u6216<em>TableA<\/em>\u8fd9\u6837\u7684\u901a\u7528\u540d\u79f0\u4f1a\u4f7f\u56fe\u8868\u96be\u4ee5\u9605\u8bfb\u3002\u5e94\u4f7f\u7528\u5177\u6709\u63cf\u8ff0\u6027\u7684\u4e1a\u52a1\u540d\u79f0\u3002\u4f8b\u5982\uff0c\u4e0d\u8981\u4f7f\u7528<em>FK_Customer<\/em>\uff0c\u800c\u5e94\u4f7f\u7528<em>CustomerID<\/em>\u3002\u547d\u540d\u89c4\u8303\u7684\u4e00\u81f4\u6027\u5bf9\u4e8e\u957f\u671f\u7ef4\u62a4\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h3>2. \u8fc7\u5ea6\u89c4\u8303\u5316<\/h3>\n<p>\u867d\u7136\u89c4\u8303\u5316\u53ef\u4ee5\u51cf\u5c11\u5197\u4f59\uff0c\u4f46\u521b\u5efa\u8fc7\u591a\u7684\u8868\u4f1a\u4f7f\u67e5\u8be2\u53d8\u6162\u4e14\u590d\u6742\u3002\u5982\u679c\u67d0\u4e2a\u5173\u7cfb\u5f88\u5c11\u88ab\u67e5\u8be2\uff0c\u5efa\u8bae\u5c06\u6570\u636e\u4fdd\u7559\u5728\u5355\u4e2a\u8868\u4e2d\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u5e94\u5728\u6570\u636e\u5b8c\u6574\u6027\u4e0e\u53ef\u7528\u6027\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n<h3>3. \u5ffd\u7565\u7a7a\u503c<\/h3>\n<p>\u59cb\u7ec8\u8003\u8651\u4e00\u4e2a\u5b57\u6bb5\u662f\u5426\u53ef\u4ee5\u4e3a\u7a7a\u3002\u5982\u679c\u4e00\u4e2a<strong>\u5ba2\u6237<\/strong>\u5728\u6ce8\u518c\u65f6\u5fc5\u987b\u6709\u7535\u5b50\u90ae\u4ef6\uff0c\u5c06\u5176\u6807\u8bb0\u4e3a\u975e\u7a7a\u3002\u5982\u679c\u4e00\u4e2a<strong>\u4ea7\u54c1<\/strong>\u53ef\u80fd\u5c1a\u672a\u5206\u914d<strong>\u7c7b\u522b<\/strong>\uff0c\u5219\u5141\u8bb8\u5176\u4e3a\u7a7a\u3002\u6b64\u903b\u8f91\u5e94\u5305\u542b\u5728\u56fe\u8868\u7684\u7ea6\u675f\u4e2d\u3002<\/p>\n<h3>4. \u5faa\u73af\u4f9d\u8d56<\/h3>\n<p>\u907f\u514d\u521b\u5efa\u5faa\u73af\u4f9d\u8d56\uff0c\u4f8b\u5982\u5b9e\u4f53A\u4f9d\u8d56B\uff0cB\u4f9d\u8d56C\uff0c\u800cC\u53c8\u4f9d\u8d56A\u3002\u8fd9\u4f1a\u5728\u6570\u636e\u63d2\u5165\u65f6\u9020\u6210\u903b\u8f91\u6b7b\u9501\u3002\u52a1\u5fc5\u786e\u4fdd\u6570\u636e\u5177\u6709\u6e05\u6670\u7684\u5c42\u7ea7\u7ed3\u6784\u6216\u5165\u53e3\u70b9\u3002<\/p>\n<h2>\ud83d\udcc8 \u4ece\u7eb8\u8d28\u56fe\u5230\u751f\u4ea7\u73af\u5883<\/h2>\n<p>\u4e00\u65e6\u4f60\u7684\u624b\u7ed8\u56fe\u8868\u5b8c\u6210\u5e76\u83b7\u5f97\u6279\u51c6\uff0c\u5c31\u8be5\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u636e\u5e93\u4e86\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u79f0\u4e3a\u7269\u7406\u5efa\u6a21\u3002<\/p>\n<h3>1. \u8f6c\u6362\u4e3aSQL<\/h3>\n<p>\u6bcf\u4e2a\u77e9\u5f62\u53d8\u6210\u4e00\u4e2a<code>CREATE TABLE<\/code>\u8bed\u53e5\u3002\u6bcf\u4e2a\u4e3b\u952e\u53d8\u6210\u4e00\u4e2a<code>PRIMARY KEY<\/code>\u7ea6\u675f\u3002\u6bcf\u6761\u5173\u7cfb\u7ebf\u53d8\u6210\u4e00\u4e2a<code>FOREIGN KEY<\/code>\u7ea6\u675f\u3002\u4f60\u53ef\u4ee5\u624b\u52a8\u7f16\u5199\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u3002<\/p>\n<h3>2. \u9a8c\u8bc1\u6570\u636e\u7c7b\u578b<\/h3>\n<p>\u5728\u4f60\u7684\u56fe\u8868\u4e2d\uff0c\u4f60\u5199\u4e86<em>Price<\/em>\u3002\u5728\u6570\u636e\u5e93\u4e2d\uff0c\u4f60\u5fc5\u987b\u51b3\u5b9a\u8fd9\u5e94\u8be5\u662f<code>INT<\/code>, 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