{"id":74,"date":"2026-04-05T11:26:11","date_gmt":"2026-04-05T11:26:11","guid":{"rendered":"https:\/\/www.we-notes.com\/cn\/power-of-attributes-in-erd-diagrams\/"},"modified":"2026-04-05T11:26:11","modified_gmt":"2026-04-05T11:26:11","slug":"power-of-attributes-in-erd-diagrams","status":"publish","type":"post","link":"https:\/\/www.we-notes.com\/cn\/power-of-attributes-in-erd-diagrams\/","title":{"rendered":"ER\u56fe\u4e2d\u88ab\u5ffd\u89c6\u7684\u5c5e\u6027\u529b\u91cf\uff1a\u5b83\u4eec\u7684\u91cd\u8981\u6027\u8fdc\u8d85\u4f60\u7684\u60f3\u8c61"},"content":{"rendered":"<p>\u5f53\u67b6\u6784\u5e08\u5f00\u59cb\u8bbe\u8ba1\u6570\u636e\u7ed3\u6784\u65f6\uff0c\u6ce8\u610f\u529b\u5f80\u5f80\u96c6\u4e2d\u5728\u8fde\u63a5\u4e0a\u3002\u6211\u4eec\u975e\u5e38\u5173\u6ce8\u5b9e\u4f53\u4ee5\u53ca\u5c06\u5b83\u4eec\u8054\u7cfb\u5728\u4e00\u8d77\u7684\u5173\u7cfb\u3002\u7ebf\u6761\u88ab\u753b\u51fa\uff0c\u6dfb\u52a0\u4e86\u4e4c\u9e26\u811a\uff0c\u5b9a\u4e49\u4e86\u57fa\u6570\u3002\u4eba\u4eec\u5f88\u5bb9\u6613\u8ba4\u4e3a\u6570\u636e\u5e93\u7684\u9aa8\u67b6\u4ec5\u7531\u8868\u4e4b\u95f4\u7684\u8fde\u63a5\u65b9\u5f0f\u51b3\u5b9a\u3002\u7136\u800c\uff0c\u8fd9\u79cd\u89c2\u70b9\u5ffd\u89c6\u4e86\u771f\u6b63\u652f\u6491\u6570\u636e\u7684\u57fa\u77f3\uff1a\u5c5e\u6027\u3002<\/p>\n<p>\u5c5e\u6027\u662f\u5b58\u50a8\u5728\u5b9e\u4f53\u5185\u7684\u5177\u4f53\u4fe1\u606f\u7247\u6bb5\u3002\u5b83\u4eec\u5b9a\u4e49\u4e86\u6570\u636e\u672c\u8eab\u7684\u6027\u8d28\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u5b83\u4e0e\u5176\u4ed6\u6570\u636e\u7684\u5173\u7cfb\u3002\u867d\u7136\u5173\u7cfb\u51b3\u5b9a\u4e86\u7f51\u7edc\u7684\u7ed3\u6784\uff0c\u4f46\u5c5e\u6027\u51b3\u5b9a\u4e86\u7f51\u7edc\u5185\u4fe1\u606f\u7684\u5b8c\u6574\u6027\u3001\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002\u5ffd\u89c6\u5c5e\u6027\u8bbe\u8ba1\u7684\u7ec6\u5fae\u4e4b\u5904\uff0c\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u867d\u80fd\u8fd0\u884c\uff0c\u5374\u5728\u6269\u5c55\u6027\u3001\u6570\u636e\u8d28\u91cf\u548c\u67e5\u8be2\u6548\u7387\u65b9\u9762\u4e3e\u6b65\u7ef4\u8270\u3002<\/p>\n<p>\u672c\u6307\u5357\u63a2\u8ba8\u4e86\u5c5e\u6027\u5728\u5b9e\u4f53-\u5173\u7cfb\u56fe\uff08ERD\uff09\u4e2d\u6240\u8d77\u7684\u5173\u952e\u4f5c\u7528\u3002\u6211\u4eec\u5c06\u8d85\u8d8a\u57fa\u672c\u5b9a\u4e49\uff0c\u6df1\u5165\u5206\u6790\u5c5e\u6027\u9009\u62e9\u5982\u4f55\u5f71\u54cd\u89c4\u8303\u5316\u3001\u5b58\u50a8\u4f18\u5316\u4ee5\u53ca\u957f\u671f\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Cute kawaii-style infographic explaining the importance of attributes in ER diagrams, featuring pastel-colored entity characters, five attribute types (simple, composite, multi-valued, derived, key), design best practices checklist, and database modeling tips with rounded vector illustrations\" decoding=\"async\" src=\"https:\/\/www.we-notes.com\/wp-content\/uploads\/2026\/04\/kawaii-er-diagram-attributes-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83d\udee0\ufe0f \u5728\u6570\u636e\u6a21\u578b\u4e2d\u5b9a\u4e49\u5c5e\u6027<\/h2>\n<p>\u5c5e\u6027\u662f\u5b9e\u4f53\u7684\u5c5e\u6027\u6216\u7279\u5f81\u3002\u5728\u7269\u7406\u6570\u636e\u5e93\u4e2d\uff0c\u8fd9\u5bf9\u5e94\u4e8e\u8868\u4e2d\u7684\u4e00\u4e2a\u5217\u3002\u5728\u6982\u5ff5\u9636\u6bb5\uff0c\u5b83\u662f\u5728ER\u56fe\u4e2d\u4e0e\u5b9e\u4f53\u77e9\u5f62\u76f8\u8fde\u7684\u5706\u5708\u6216\u692d\u5706\u3002\u5b9e\u4f53\u4e0e\u5c5e\u6027\u4e4b\u95f4\u7684\u533a\u522b\u6709\u65f6\u6a21\u7cca\uff0c\u4f46\u4e00\u4e2a\u7b80\u5355\u7684\u5224\u65ad\u6807\u51c6\u662f\uff1a\u5982\u679c\u6570\u636e\u63cf\u8ff0\u7684\u662f\u5b9e\u4f53\u4e14\u4e0d\u80fd\u72ec\u7acb\u5b58\u5728\uff0c\u90a3\u4e48\u5b83\u5c31\u662f\u5c5e\u6027\u3002<\/p>\n<p>\u8003\u8651\u4e00\u4e2a<strong>\u5ba2\u6237<\/strong>\u5b9e\u4f53\u3002\u59d3\u540d\u3001\u5730\u5740\u548c\u51fa\u751f\u65e5\u671f\u90fd\u662f\u5c5e\u6027\u3002\u5b83\u4eec\u63cf\u8ff0\u5ba2\u6237\uff0c\u4f46\u4e0d\u50cf\u8ba2\u5355\u6216\u4ea7\u54c1\u90a3\u6837\u4f5c\u4e3a\u72ec\u7acb\u7684\u8bb0\u5f55\u5b58\u5728\u3002\u7136\u800c\uff0c\u5982\u4f55\u5b58\u50a8\u8fd9\u4e9b\u5c5e\u6027\u7684\u51b3\u5b9a\uff0c\u6b63\u662f\u590d\u6742\u6027\u5f00\u59cb\u7684\u5730\u65b9\u3002<\/p>\n<h3>\u4f60\u5fc5\u987b\u4e86\u89e3\u7684\u5c5e\u6027\u7c7b\u578b<\/h3>\n<p>\u5e76\u975e\u6240\u6709\u5c5e\u6027\u90fd\u662f\u4e00\u6837\u7684\u3002\u7406\u89e3\u5c5e\u6027\u7684\u5177\u4f53\u5206\u7c7b\u6709\u52a9\u4e8e\u786e\u5b9a\u5176\u5b58\u50a8\u9700\u6c42\u548c\u7ea6\u675f\u6761\u4ef6\u3002\u4ee5\u4e0b\u662f\u6570\u636e\u5efa\u6a21\u8fc7\u7a0b\u4e2d\u5e38\u89c1\u7684\u5c5e\u6027\u7c7b\u578b\u7684\u5206\u89e3\u8bf4\u660e\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5c5e\u6027\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<th>\u793a\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u7b80\u5355\u5c5e\u6027<\/td>\n<td>\u539f\u5b50\u503c\uff1b\u4e0d\u80fd\u518d\u8fdb\u4e00\u6b65\u5206\u5272\u3002<\/td>\n<td>\u5e74\u9f84\uff0c\u793e\u4f1a\u4fdd\u969c\u53f7\u7801<\/td>\n<\/tr>\n<tr>\n<td>\u590d\u5408\u5c5e\u6027<\/td>\n<td>\u53ef\u5212\u5206\u4e3a\u5b50\u90e8\u5206\u3002<\/td>\n<td>\u5730\u5740\uff08\u8857\u9053\u3001\u57ce\u5e02\u3001\u90ae\u7f16\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u591a\u503c\u5c5e\u6027<\/td>\n<td>\u53ef\u4e3a\u5355\u4e2a\u5b9e\u4f53\u5b9e\u4f8b\u5b58\u50a8\u591a\u4e2a\u503c\u3002<\/td>\n<td>\u7535\u8bdd\u53f7\u7801\uff0c\u7535\u5b50\u90ae\u4ef6\u5730\u5740<\/td>\n<\/tr>\n<tr>\n<td>\u6d3e\u751f\u5c5e\u6027<\/td>\n<td>\u7531\u5176\u4ed6\u5c5e\u6027\u8ba1\u7b97\u5f97\u51fa\u3002<\/td>\n<td>\u5e74\u9f84\uff08\u7531\u51fa\u751f\u65e5\u671f\u8ba1\u7b97\u5f97\u51fa\uff09\uff0c\u603b\u4ef7<\/td>\n<\/tr>\n<tr>\n<td>\u952e\u5c5e\u6027<\/td>\n<td>\u552f\u4e00\u6807\u8bc6\u5b9e\u4f53\u3002<\/td>\n<td>\u5ba2\u6237ID\uff0c\u8ba2\u5355\u53f7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8fd9\u4e9b\u7c7b\u578b\u4e2d\u7684\u6bcf\u4e00\u79cd\u5728\u903b\u8f91\u8bbe\u8ba1\u9636\u6bb5\u90fd\u9700\u8981\u7279\u5b9a\u7684\u5904\u7406\u65b9\u5f0f\u3002\u5982\u679c\u65e0\u6cd5\u533a\u5206\u7b80\u5355\u5c5e\u6027\u548c\u590d\u5408\u5c5e\u6027\uff0c\u53ef\u80fd\u5bfc\u81f4\u7ed3\u6784\u50f5\u5316\uff0c\u540e\u671f\u96be\u4ee5\u4fee\u6539\u3002\u4f8b\u5982\uff0c\u5c06\u5b8c\u6574\u5730\u5740\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u5b58\u50a8\uff0c\u4f1a\u4f7f\u6309\u57ce\u5e02\u6216\u90ae\u7f16\u8fdb\u884c\u7b5b\u9009\u53d8\u5f97\u56f0\u96be\uff0c\u9664\u975e\u4f7f\u7528\u590d\u6742\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u3002<\/p>\n<h2>\u2696\ufe0f \u4f4e\u8d28\u91cf\u5c5e\u6027\u8bbe\u8ba1\u7684\u9690\u6027\u6210\u672c<\/h2>\n<p>\u8bb8\u591a\u56e2\u961f\u5c06\u5c5e\u6027\u89c6\u4e3a\u5728\u5efa\u7acb\u5173\u7cfb\u4e4b\u540e\u624d\u9700\u586b\u5199\u7684\u7410\u788e\u7ec6\u8282\u3002\u8fd9\u79cd\u65b9\u6cd5\u5e38\u5e38\u5bfc\u81f4\u4e25\u91cd\u7684\u6280\u672f\u503a\u52a1\u3002\u5f53\u5c5e\u6027\u5b9a\u4e49\u4e0d\u4f73\u65f6\uff0c\u5176\u5f71\u54cd\u4f1a\u6ce2\u53ca\u6574\u4e2a\u7cfb\u7edf\u3002<\/p>\n<ul>\n<li><strong>\u6570\u636e\u5b8c\u6574\u6027\u95ee\u9898\uff1a<\/strong> \u5982\u679c\u67d0\u4e2a\u5c5e\u6027\u5728\u6ca1\u6709\u660e\u786e\u4e1a\u52a1\u903b\u8f91\u7684\u60c5\u51b5\u4e0b\u5141\u8bb8\u7a7a\u503c\uff0c\u62a5\u544a\u5c31\u4f1a\u53d8\u5f97\u4e0d\u53ef\u9760\u3002\u5982\u679c\u5c5e\u6027\u7f3a\u5c11\u7ea6\u675f\uff08\u5982\u6700\u5927\u957f\u5ea6\u6216\u6709\u6548\u8303\u56f4\uff09\uff0c\u6570\u636e\u5e93\u5c06\u63a5\u53d7\u5783\u573e\u6570\u636e\u3002<\/li>\n<li><strong>\u67e5\u8be2\u6027\u80fd\u4e0b\u964d\uff1a<\/strong> \u5728\u6ca1\u6709\u7d22\u5f15\u7684\u60c5\u51b5\u4e0b\u5197\u4f59\u5b58\u50a8\u6d3e\u751f\u6570\u636e\u4f1a\u51cf\u6162\u66f4\u65b0\u901f\u5ea6\u3002\u76f8\u53cd\uff0c\u672a\u5bf9\u9891\u7e41\u67e5\u8be2\u7684\u5c5e\u6027\u5efa\u7acb\u7d22\u5f15\u4f1a\u4f7f\u641c\u7d22\u64cd\u4f5c\u53d8\u5f97\u8fdf\u7f13\u3002<\/li>\n<li><strong>\u89c4\u8303\u5316\u8fdd\u53cd\uff1a<\/strong> \u4e0d\u6070\u5f53\u5730\u62c6\u5206\u6216\u5408\u5e76\u5c5e\u6027\uff0c\u5e38\u5e38\u4f1a\u5bfc\u81f4\u8bb0\u5f55\u63d2\u5165\u3001\u5220\u9664\u6216\u66f4\u65b0\u65f6\u51fa\u73b0\u5f02\u5e38\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027\u74f6\u9888\uff1a<\/strong> \u65e0\u9650\u5236\u589e\u957f\u7684\u5c5e\u6027\uff08\u4f8b\u5982\u5c06\u6807\u7b7e\u5217\u8868\u5b58\u50a8\u5728\u5355\u4e2a\u6587\u672c\u5b57\u6bb5\u4e2d\uff09\u4f1a\u963b\u788d\u9ad8\u6548\u7684\u5206\u7247\u548c\u5206\u533a\u7b56\u7565\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e0d\u4ec5\u4ec5\u662f\u62e5\u6709\u6b63\u786e\u7684\u5217\uff1b\u66f4\u5728\u4e8e\u62e5\u6709\u6b63\u786e\u7684\u7ea6\u675f\u548c\u6570\u636e\u7c7b\u578b\u3002\u4e00\u4e2a<code>varchar<\/code> \u5b57\u6bb5\u7528\u4e8e\u5b58\u50a8\u7535\u8bdd\u53f7\u7801\uff0c\u5176\u6548\u7387\u548c\u51c6\u786e\u6027\u90fd\u4f4e\u4e8e\u80fd\u591f\u9a8c\u8bc1\u8f93\u5165\u7684\u7279\u5b9a\u6574\u6570\u6216\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7c7b\u578b\u3002<\/p>\n<h2>\ud83d\udd0d \u6df1\u5ea6\u89e3\u6790\uff1a\u5c5e\u6027\u8bbe\u8ba1\u6a21\u5f0f<\/h2>\n<p>\u4e3a\u4e86\u6784\u5efa\u5065\u58ee\u7684\u7cfb\u7edf\uff0c\u8bbe\u8ba1\u8005\u5728\u5b9a\u4e49\u5c5e\u6027\u65f6\u5e94\u5e94\u7528\u7279\u5b9a\u7684\u8bbe\u8ba1\u6a21\u5f0f\u3002\u8fd9\u4e9b\u6a21\u5f0f\u53ef\u786e\u4fdd\u6570\u636e\u6a21\u578b\u4e2d\u7684\u4e00\u81f4\u6027\u548c\u6e05\u6670\u6027\u3002<\/p>\n<h3>1. \u539f\u5b50\u6027\u4e0e\u7b2c\u4e00\u8303\u5f0f<\/h3>\n<p>\u5c5e\u6027\u8bbe\u8ba1\u7684\u7b2c\u4e00\u6761\u89c4\u5219\u662f\u539f\u5b50\u6027\u3002\u6bcf\u4e2a\u5c5e\u6027\u90fd\u5e94\u53ea\u5305\u542b\u4e00\u4e2a\u4e0d\u53ef\u518d\u5206\u7684\u503c\u3002\u907f\u514d\u5728\u4e00\u4e2a\u5355\u5143\u683c\u4e2d\u5b58\u50a8\u591a\u4e2a\u503c\u3002<\/p>\n<ul>\n<li><strong>\u4e0d\u826f\u5b9e\u8df5\uff1a<\/strong>\u4e00\u4e2a<code>skills<\/code> \u5217\u5305\u542b\u201cSQL, Python, Java\u201d\u3002<\/li>\n<li><strong>\u826f\u597d\u5b9e\u8df5\uff1a<\/strong> \u4e00\u4e2a\u72ec\u7acb\u7684\u5173\u8054\u8868\uff0c\u8fde\u63a5<strong>Employee<\/strong> \u548c<strong>Skill<\/strong>.<\/li>\n<\/ul>\n<p>\u8fdd\u53cd\u539f\u5b50\u6027\u4f1a\u4f7f\u67e5\u8be2\u53d8\u5f97\u590d\u6742\u3002\u5982\u679c\u4e0d\u89e3\u6790\u5b57\u7b26\u4e32\uff0c\u5c31\u65e0\u6cd5\u8f7b\u677e\u7edf\u8ba1\u6709\u591a\u5c11\u5458\u5de5\u638c\u63e1\u201cPython\u201d\u3002\u4fdd\u6301\u5c5e\u6027\u7684\u539f\u5b50\u6027\u53ef\u4ee5\u7b80\u5316\u6570\u636e\u68c0\u7d22\u548c\u805a\u5408\u6240\u9700\u7684\u64cd\u4f5c\u903b\u8f91\u3002<\/p>\n<h3>2. \u547d\u540d\u89c4\u8303\u4e0e\u6e05\u6670\u6027<\/h3>\n<p>\u5c5e\u6027\u540d\u79f0\u5fc5\u987b\u5177\u6709\u81ea\u89e3\u91ca\u6027\u3002\u6a21\u7cca\u6027\u662f\u53ef\u7ef4\u62a4\u6027\u7684\u654c\u4eba\u3002\u907f\u514d\u4f7f\u7528\u672a\u6765\u5f00\u53d1\u8005\u53ef\u80fd\u4e0d\u7406\u89e3\u7684\u7f29\u5199\u3002\u4f7f\u7528\u5355\u6570\u540d\u8bcd\u4f5c\u4e3a\u5c5e\u6027\u540d\u79f0\uff0c\u4ee5\u8868\u660e\u5b83\u4eec\u63cf\u8ff0\u7684\u662f\u5b9e\u4f53\u7684\u5355\u4e00\u5c5e\u6027\u3002<\/p>\n<ul>\n<li><strong>\u6a21\u7cca\u7684\uff1a<\/strong> <code>\u65e5\u671f<\/code> \u6216 <code>\u503c<\/code>.<\/li>\n<li><strong>\u660e\u786e\u7684\uff1a<\/strong> <code>\u51fa\u751f\u65e5\u671f<\/code> \u6216 <code>\u4ea4\u6613\u91d1\u989d<\/code>.<\/li>\n<\/ul>\n<p>\u547d\u540d\u7684\u4e00\u81f4\u6027\u4e5f\u6709\u52a9\u4e8e\u81ea\u52a8\u5316\u5de5\u5177\u751f\u6210\u6587\u6863\u548c\u4ee3\u7801\u3002\u5982\u679c\u6a21\u578b\u5728\u5404\u5904\u90fd\u4f7f\u7528 <code>\u521b\u5efa\u65f6\u95f4<\/code>\uff0c\u90a3\u4e48\u751f\u6210\u7684SQL\u67e5\u8be2\u5c06\u9075\u5faa\u8be5\u6a21\u5f0f\uff0c\u4ece\u800c\u51cf\u8f7b\u5de5\u7a0b\u56e2\u961f\u7684\u8ba4\u77e5\u8d1f\u62c5\u3002<\/p>\n<h3>3. \u7a7a\u503c\u5904\u7406<\/h3>\n<p>\u6bcf\u4e2a\u5c5e\u6027\u90fd\u5fc5\u987b\u6709\u660e\u786e\u7684\u7a7a\u503c\u89c4\u5219\u3002\u5728\u8bb8\u591a\u7cfb\u7edf\u4e2d\uff0c<code>\u7a7a\u503c<\/code>\u4e0e\u7a7a\u5b57\u7b26\u4e32\u6216\u96f6\u7684\u5904\u7406\u65b9\u5f0f\u4e0d\u540c\u3002\u662f\u5426\u5141\u8bb8\u5c5e\u6027\u4e3a\u7a7a\uff0c\u5e94\u57fa\u4e8e\u4e1a\u52a1\u903b\u8f91\u6765\u51b3\u5b9a\u3002<\/p>\n<ul>\n<li><strong>\u5fc5\u586b\u5c5e\u6027\uff1a<\/strong> \u5982\u679c\u4e00\u4e2a<strong>\u5ba2\u6237<\/strong>\u6ca1\u6709\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u5c31\u65e0\u6cd5\u5b58\u5728\uff0c\u90a3\u4e48\u8be5\u5c5e\u6027\u5e94\u8bbe\u7f6e\u4e3a<code>\u975e\u7a7a<\/code>.<\/li>\n<li><strong>\u53ef\u9009\u5c5e\u6027\uff1a<\/strong> \u5982\u679c\u4e00\u4e2a<strong>\u4ea7\u54c1<\/strong>\u53ef\u80fd\u6ca1\u6709\u4e2d\u95f4\u540d\uff0c\u90a3\u4e48\u8be5\u5c5e\u6027\u5e94\u5141\u8bb8<code>\u7a7a\u503c<\/code>.<\/li>\n<\/ul>\n<p>\u8fc7\u5ea6\u4f7f\u7528<code>NULL<\/code>\u53ef\u80fd\u5bfc\u81f4SQL\u67e5\u8be2\u4e2d\u7684\u4e09\u503c\u903b\u8f91\u9519\u8bef\uff08\u5176\u4e2d<code>NULL = NULL<\/code>\u4e3a\u5047\uff09\u3002\u5728\u8bbe\u8ba1\u9636\u6bb5\u660e\u786e\u5904\u7406\u7a7a\u503c\u53ef\u4ee5\u907f\u514d\u8fd9\u4e9b\u903b\u8f91\u9677\u9631\u3002<\/p>\n<h2>\ud83e\udde9 \u5c5e\u6027\u4e0e\u5173\u7cfb\uff1a\u5bfb\u627e\u5e73\u8861\u70b9<\/h2>\n<p>\u5173\u4e8e\u4f55\u65f6\u505c\u6b62\u6dfb\u52a0\u5c5e\u6027\u5e76\u5f00\u59cb\u521b\u5efa\u65b0\u5b9e\u4f53\uff0c\u5e38\u5e38\u5b58\u5728\u4e89\u8bae\u3002\u8fd9\u5c31\u662f\u7ecf\u5178\u7684\u201c\u5c5e\u6027\u4e0e\u5b9e\u4f53\u201d\u56f0\u5883\u3002\u8fd9\u4e00\u51b3\u7b56\u53d6\u51b3\u4e8e\u5173\u7cfb\u7684\u57fa\u6570\u3002<\/p>\n<p>\u5982\u679c\u4e00\u4e2a\u5c5e\u6027\u53ef\u4ee5\u72ec\u7acb\u5b58\u5728\uff0c\u6216\u62e5\u6709\u81ea\u5df1\u7684\u5c5e\u6027\u96c6\uff0c\u90a3\u4e48\u5b83\u5f88\u53ef\u80fd\u662f\u5b9e\u4f53\u3002\u5982\u679c\u5b83\u4ec5\u4ec5\u662f\u63cf\u8ff0\u6027\u7684\u4e14\u4f9d\u8d56\u4e8e\u7236\u5b9e\u4f53\uff0c\u90a3\u4e48\u5b83\u5e94\u4fdd\u6301\u4e3a\u5c5e\u6027\u3002<\/p>\n<ul>\n<li><strong>\u573a\u666fA\uff1a<\/strong> \u4e00\u95e8 <strong>\u6c7d\u8f66<\/strong> \u6709\u4e00\u4e2a <code>\u989c\u8272<\/code>\u5c5e\u6027\u3002\u8fd9\u662f\u63cf\u8ff0\u6027\u7684\u3002\u5b83\u672c\u8eab\u6ca1\u6709\u72ec\u7acb\u7684\u751f\u547d\u3002<\/li>\n<li><strong>\u573a\u666fB\uff1a<\/strong> \u4e00\u95e8 <strong>\u6c7d\u8f66<\/strong> \u6709\u4e00\u4e2a <code>\u8f66\u4e3b<\/code>\u3002\u8f66\u4e3b\u662f\u4e00\u4e2a\u62e5\u6709\u81ea\u5df1\u5c5e\u6027\uff08\u59d3\u540d\u3001\u5730\u5740\uff09\u7684\u4eba\u3002\u8fd9\u662f\u4e00\u4e2a\u4e0e\u5b9e\u4f53\u7684\u5173\u7cfb\uff0c\u800c\u4e0d\u662f\u5c5e\u6027\u3002<\/li>\n<li><strong>\u573a\u666fC\uff1a<\/strong> \u4e00\u95e8 <strong>\u8bfe\u7a0b<\/strong> \u6709 <code>\u4e3b\u9898<\/code>\u3002\u5982\u679c\u4e3b\u9898\u662f\u6807\u51c6\u7684\uff08\u6570\u5b66\u3001\u79d1\u5b66\uff09\uff0c\u5b83\u4eec\u53ef\u4ee5\u4f5c\u4e3a\u5c5e\u6027\u3002\u5982\u679c\u4e3b\u9898\u662f\u590d\u6742\u7684\uff08\u5177\u6709\u63cf\u8ff0\u3001\u96be\u5ea6\u7b49\u7ea7\uff09\uff0c\u5219\u5e94\u4f5c\u4e3a\u5b9e\u4f53\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u8fd9\u79cd\u5e73\u8861\u628a\u63e1\u4e0d\u5f53\uff0c\u4f1a\u5bfc\u81f4\u8868\u8fc7\u5ea6\u975e\u89c4\u8303\u5316\u6216\u6a21\u578b\u4e0d\u5fc5\u8981\u7684\u788e\u7247\u5316\u3002\u76ee\u6807\u662f\u5728\u4e0d\u5f15\u5165\u4e1a\u52a1\u903b\u8f91\u4e0d\u9700\u8981\u7684\u590d\u6742\u6027\u7684\u60c5\u51b5\u4e0b\uff0c\u6355\u6349\u5fc5\u8981\u7684\u7ec6\u8282\u3002<\/p>\n<h2>\ud83d\udcc9 \u5bf9\u89c4\u8303\u5316\u7684\u5f71\u54cd<\/h2>\n<p>\u89c4\u8303\u5316\u662f\u7ec4\u7ec7\u6570\u636e\u4ee5\u51cf\u5c11\u5197\u4f59\u7684\u8fc7\u7a0b\u3002\u5728\u8fd9\u4e00\u8fc7\u7a0b\u4e2d\uff0c\u5c5e\u6027\u662f\u88ab\u79fb\u52a8\u7684\u4e3b\u8981\u5355\u5143\u3002\u7406\u89e3\u5c5e\u6027\u7684\u884c\u4e3a\u5bf9\u4e8e\u8fbe\u5230\u7b2c\u4e09\u8303\u5f0f\uff083NF\uff09\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h3>\u4f20\u9012\u4f9d\u8d56<\/h3>\n<p>\u5f53\u4e00\u4e2a\u975e\u4e3b\u952e\u5c5e\u6027\u4f9d\u8d56\u4e8e\u53e6\u4e00\u4e2a\u975e\u4e3b\u952e\u5c5e\u6027\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u4f20\u9012\u4f9d\u8d56\u3002\u8fd9\u662f\u5c5e\u6027\u8bbe\u8ba1\u4e2d\u7684\u5e38\u89c1\u9677\u9631\u3002<\/p>\n<p>\u60f3\u8c61\u4e00\u4e2a<strong>\u8ba2\u5355<\/strong>\u8868\uff0c\u5176\u4e2d\u5305\u542b<code>\u8ba2\u5355ID<\/code>, <code>\u5ba2\u6237ID<\/code>, <code>\u5ba2\u6237\u59d3\u540d<\/code>\uff0c\u4ee5\u53ca<code>\u5ba2\u6237\u5730\u5740<\/code>.<\/p>\n<ul>\n<li><code>\u5ba2\u6237\u59d3\u540d<\/code>\u4f9d\u8d56\u4e8e<code>\u5ba2\u6237ID<\/code>.<\/li>\n<li><code>\u5ba2\u6237\u5730\u5740<\/code>\u4f9d\u8d56\u4e8e<code>\u5ba2\u6237ID<\/code>.<\/li>\n<li><code>\u5ba2\u6237\u59d3\u540d<\/code>\u4e0d\u4f9d\u8d56\u4e8e<code>\u8ba2\u5355ID<\/code>.<\/li>\n<\/ul>\n<p>\u5728\u8fd9\u91cc\uff0c<code>\u5ba2\u6237\u5730\u5740<\/code>\u901a\u8fc7<code>\u8ba2\u5355ID<\/code>\u95f4\u63a5\u4f9d\u8d56\u4e8e<code>\u5ba2\u6237ID<\/code>\u3002\u4e3a\u4e86\u89c4\u8303\u5316\uff0c\u5fc5\u987b\u5c06\u5ba2\u6237\u5c5e\u6027\u79fb\u5230\u4e00\u4e2a\u5355\u72ec\u7684<strong>\u5ba2\u6237<\/strong> \u8868\u3002\u8fd9\u51cf\u5c11\u4e86\u5b58\u50a8\u7a7a\u95f4\uff0c\u5e76\u786e\u4fdd\u5982\u679c\u5ba2\u6237\u642c\u5bb6\uff0c\u60a8\u53ea\u9700\u66f4\u65b0\u4e00\u6761\u8bb0\u5f55\u3002<\/p>\n<h3>\u51fd\u6570\u4f9d\u8d56<\/h3>\n<p>\u6bcf\u4e2a\u5c5e\u6027\u90fd\u5fc5\u987b\u5bf9\u4e3b\u952e\u6709\u660e\u786e\u7684\u51fd\u6570\u4f9d\u8d56\u5173\u7cfb\u3002\u5982\u679c\u60a8\u65e0\u6cd5\u786e\u5b9a\u662f\u54ea\u4e2a\u952e\u51b3\u5b9a\u4e86\u5c5e\u6027\u7684\u503c\uff0c\u90a3\u4e48\u8be5\u5c5e\u6027\u5c31\u4e0d\u5e94\u5b58\u5728\u4e8e\u8be5\u8868\u4e2d\u3002\u6b64\u68c0\u67e5\u5bf9\u4e8e\u6570\u636e\u5b8c\u6574\u6027\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><strong>\u89c4\u5219\uff1a<\/strong> \u6bcf\u4e2a\u975e\u952e\u5c5e\u6027\u5fc5\u987b\u63d0\u4f9b\u5173\u4e8e\u952e\u3001\u6574\u4e2a\u952e\u4ee5\u53ca\u4ec5\u5173\u4e8e\u952e\u7684\u4e8b\u5b9e\u3002<\/p>\n<h2>\ud83d\udeab \u9700\u8981\u907f\u514d\u7684\u5e38\u89c1\u9677\u9631<\/h2>\n<p>\u5373\u4f7f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u8bbe\u8ba1\u5e08\u5728\u5b9a\u4e49\u5c5e\u6027\u65f6\u4e5f\u53ef\u80fd\u9677\u5165\u9677\u9631\u3002\u4ee5\u4e0b\u662f\u5e38\u89c1\u7684\u9519\u8bef\u53ca\u5176\u9884\u9632\u65b9\u6cd5\u3002<\/p>\n<h3>1. \u5b58\u50a8\u6d3e\u751f\u6570\u636e<\/h3>\n<p>\u4e3a\u4e86\u5728\u67e5\u8be2\u65f6\u8282\u7701\u8ba1\u7b97\u65f6\u95f4\uff0c\u5b58\u50a8\u8ba1\u7b97\u503c\u7684\u8bf1\u60d1\u5f88\u5927\u3002\u4f8b\u5982\uff0c\u5c06 <code>\u603b\u4ef7\u683c<\/code> \u5b58\u50a8\u5728\u8ba2\u5355\u8868\u4e2d\uff0c\u800c\u4e0d\u662f\u4ece <code>\u660e\u7ec6\u9879<\/code>.<\/p>\n<ul>\n<li><strong>\u98ce\u9669\uff1a<\/strong> \u6570\u636e\u4e0d\u4e00\u81f4\u3002\u5982\u679c\u5546\u54c1\u4ef7\u683c\u53d1\u751f\u53d8\u5316\uff0c\u9664\u975e\u60a8\u540c\u65f6\u66f4\u65b0\u603b\u4ef7\u5b57\u6bb5\uff0c\u5426\u5219\u5386\u53f2\u8ba2\u5355\u603b\u989d\u5c06\u53d8\u5f97\u4e0d\u6b63\u786e\u3002<\/li>\n<li><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong> \u4ec5\u5b58\u50a8\u57fa\u7840\u6570\u636e\u3002\u5728\u67e5\u8be2\u65f6\u6216\u5728\u5e94\u7528\u5c42\u8ba1\u7b97\u6d3e\u751f\u503c\u3002<\/li>\n<\/ul>\n<h3>2. \u5ffd\u89c6\u6570\u636e\u7c7b\u578b<\/h3>\n<p>\u5bf9\u6240\u6709\u5185\u5bb9\u90fd\u4f7f\u7528\u901a\u7528\u7684\u5b57\u7b26\u4e32\u7c7b\u578b\u867d\u7136\u80fd\u5feb\u901f\u8282\u7701\u65f6\u95f4\uff0c\u4f46\u4ee5\u540e\u4f1a\u4ea7\u751f\u95ee\u9898\u3002\u4ee5\u5b57\u7b26\u4e32\u5f62\u5f0f\u5b58\u50a8\u7684\u65e5\u671f\u65e0\u6cd5\u9ad8\u6548\u5730\u6392\u5e8f\u6216\u7b5b\u9009\u3002\u4ee5\u5b57\u7b26\u4e32\u5f62\u5f0f\u5b58\u50a8\u7684\u6570\u5b57\u4f1a\u963b\u6b62\u6570\u5b66\u8fd0\u7b97\u3002<\/p>\n<ul>\n<li><strong>\u6700\u4f73\u5b9e\u8df5\uff1a<\/strong> \u9009\u62e9\u4e0e\u9886\u57df\u5339\u914d\u7684\u5177\u4f53\u6570\u636e\u7c7b\u578b\u3002\u6839\u636e\u9700\u8981\u4f7f\u7528 <code>DATE<\/code>, <code>INT<\/code>, <code>DECIMAL<\/code>\uff0c\u6216 <code>BLOB<\/code> \u7b49\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<h3>3. \u5ffd\u89c6\u5b57\u7b26\u96c6<\/h3>\n<p>\u6587\u672c\u5c5e\u6027\u9700\u8981\u5b9a\u4e49\u5b57\u7b26\u96c6\u3002\u5982\u679c\u4f60\u5047\u8bbe\u4f7f\u7528ASCII\u7f16\u7801\u4f46\u63a5\u6536\u5230UTF-8\u8f93\u5165\uff0c\u5c06\u4f1a\u4e22\u5931\u7279\u6b8a\u5b57\u7b26\u3002\u8fd9\u5bf9\u5168\u7403\u5e94\u7528\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<ul>\n<li><strong>\u68c0\u67e5\uff1a<\/strong> \u786e\u4fdd\u6570\u636e\u5e93\u652f\u6301\u76ee\u6807\u7528\u6237\u6240\u9700\u7684\u6392\u5e8f\u89c4\u5219\u548c\u5b57\u7b26\u7f16\u7801\u3002<\/li>\n<\/ul>\n<h2>\ud83d\ude80 \u5c5e\u6027\u5bf9\u6027\u80fd\u7684\u5f71\u54cd<\/h2>\n<p>\u5c5e\u6027\u76f4\u63a5\u5f71\u54cd\u6570\u636e\u5e93\u5f15\u64ce\u68c0\u7d22\u548c\u5b58\u50a8\u6570\u636e\u7684\u65b9\u5f0f\u3002\u5c5e\u6027\u7684\u7269\u7406\u5b9e\u73b0\u4f1a\u5f71\u54cd\u6027\u80fd\u6307\u6807\u3002<\/p>\n<h3>\u7d22\u5f15\u7b56\u7565<\/h3>\n<p>\u5e76\u975e\u6240\u6709\u5c5e\u6027\u90fd\u5e94\u88ab\u7d22\u5f15\u3002\u7d22\u5f15\u4f1a\u589e\u52a0\u5199\u64cd\u4f5c\uff08INSERT\u3001UPDATE\u3001DELETE\uff09\u7684\u5f00\u9500\uff0c\u4f46\u80fd\u52a0\u5feb\u8bfb\u64cd\u4f5c\uff08SELECT\uff09\u7684\u901f\u5ea6\u3002<\/p>\n<ul>\n<li><strong>\u9ad8\u57fa\u6570\uff1a<\/strong> \u5177\u6709\u8bb8\u591a\u552f\u4e00\u503c\u7684\u5c5e\u6027\uff08\u5982\u7535\u5b50\u90ae\u4ef6\uff09\u662f\u7d22\u5f15\u7684\u826f\u597d\u5019\u9009\u3002<\/li>\n<li><strong>\u4f4e\u57fa\u6570\uff1a<\/strong> 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