{"id":1532,"date":"2026-03-27T17:16:10","date_gmt":"2026-03-27T17:16:10","guid":{"rendered":"https:\/\/www.viz-read.com\/tw\/erd-vs-schema-core-difference-developers\/"},"modified":"2026-03-27T17:16:10","modified_gmt":"2026-03-27T17:16:10","slug":"erd-vs-schema-core-difference-developers","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/tw\/erd-vs-schema-core-difference-developers\/","title":{"rendered":"ERD \u8207\u8cc7\u6599\u5eab\u7d50\u69cb\u5716\u7684\u5c0d\u6bd4\uff1a\u6bcf\u500b\u958b\u767c\u8005\u90fd\u61c9\u8a72\u4e86\u89e3\u7684\u6838\u5fc3\u5dee\u7570"},"content":{"rendered":"

\u8cc7\u6599\u5eab\u8a2d\u8a08\u662f\u4efb\u4f55\u7a69\u5065\u8edf\u9ad4\u61c9\u7528\u7684\u9aa8\u5e79\u3002\u7136\u800c\uff0c\u5373\u4f7f\u7d93\u9a57\u8c50\u5bcc\u7684\u5de5\u7a0b\u5e2b\u5728\u89e3\u91cb\u8996\u89ba\u85cd\u5716\u8207\u5be6\u969b\u5be6\u73fe\u4e4b\u9593\u7684\u5dee\u7570\u6642\uff0c\u4e5f\u7d93\u5e38\u6703\u6df7\u6dc6\u3002\u9019\u7a2e\u6df7\u6dc6\u901a\u5e38\u51fa\u73fe\u5728\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09\u8207\u8cc7\u6599\u5eab\u7d50\u69cb\u5716\u4e4b\u9593\u3002\u96d6\u7136\u9019\u5169\u500b\u8853\u8a9e\u5728\u65e5\u5e38\u5c0d\u8a71\u4e2d\u7d93\u5e38\u88ab\u4e92\u63db\u4f7f\u7528\uff0c\u4f46\u5b83\u5011\u4ee3\u8868\u4e86\u8cc7\u6599\u67b6\u69cb\u6d41\u7a0b\u4e2d\u7684\u4e0d\u540c\u5c64\u7d1a\u3002\u7406\u89e3\u5b83\u5011\u4e4b\u9593\u7684\u7d30\u5fae\u5dee\u5225\u4e0d\u50c5\u50c5\u662f\u5b78\u8853\u4e0a\u7684\uff0c\u66f4\u6c7a\u5b9a\u4e86\u8cc7\u6599\u7684\u6d41\u52d5\u65b9\u5f0f\u3001\u7d04\u675f\u7684\u57f7\u884c\u65b9\u5f0f\uff0c\u4ee5\u53ca\u7cfb\u7d71\u96a8\u6642\u9593\u6f14\u9032\u7684\u65b9\u5f0f\u3002<\/p>\n

\u5728\u672c\u6307\u5357\u4e2d\uff0c\u6211\u5011\u5c07\u5256\u6790\u8cc7\u6599\u6a21\u578b\u7684\u7406\u8ad6\u69cb\u5efa\u8207\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u7684\u5be6\u969b\u73fe\u5be6\u4e4b\u9593\u7684\u5c0d\u6bd4\u3002\u6211\u5011\u5c07\u63a2\u8a0e\u62bd\u8c61\u6982\u5ff5\u5982\u4f55\u8f49\u5316\u70ba\u5177\u9ad4\u7d50\u69cb\uff0c\u9019\u7a2e\u8f49\u5316\u6240\u5e36\u4f86\u7684\u5f71\u97ff\uff0c\u4ee5\u53ca\u70ba\u4ec0\u9ebc\u5728\u8166\u4e2d\u660e\u78ba\u5340\u5206\u9019\u5169\u8005\u5c0d\u65bc\u9577\u671f\u53ef\u7dad\u8b77\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u60a8\u662f\u5728\u8a2d\u8a08\u65b0\u7cfb\u7d71\uff0c\u9084\u662f\u91cd\u69cb\u73fe\u6709\u7cfb\u7d71\uff0c\u9019\u88e1\u7684\u6e05\u6670\u5ea6\u90fd\u80fd\u907f\u514d\u7522\u751f\u6602\u8cb4\u7684\u6280\u8853\u50b5\u52d9\u3002<\/p>\n

\n
\"Charcoal<\/figure>\n<\/div>\n

\u4ec0\u9ebc\u662f ERD\uff1f \ud83d\udcd0<\/h2>\n

\u5be6\u9ad4-\u95dc\u4fc2\u5716\u662f\u4e00\u7a2e\u8cc7\u6599\u7684\u6982\u5ff5\u6027\u6216\u908f\u8f2f\u6027\u8868\u793a\u3002\u5b83\u4f5c\u70ba\u5546\u696d\u5229\u76ca\u76f8\u95dc\u8005\u3001\u5206\u6790\u5e2b\u8207\u958b\u767c\u8005\u4e4b\u9593\u7684\u6e9d\u901a\u6a4b\u6a11\u3002\u5176\u4e3b\u8981\u76ee\u7684\u662f\u5728\u4e0d\u9677\u5165\u7279\u5b9a\u8cc7\u6599\u5eab\u5f15\u64ce\u7d30\u7bc0\u7684\u60c5\u6cc1\u4e0b\uff0c\u8996\u89ba\u5316\u8cc7\u6599\u5143\u7d20\u4e4b\u9593\u7684\u95dc\u806f\u65b9\u5f0f\u3002<\/p>\n

\u5176\u6838\u5fc3\u5728\u65bc\u95dc\u6ce8\u4e09\u500b\u57fa\u672c\u7d44\u6210\u90e8\u5206\uff1a<\/p>\n

    \n
  • \u5be6\u9ad4\uff1a<\/strong> \u5b83\u5011\u4ee3\u8868\u73fe\u5be6\u4e16\u754c\u4e2d\u7684\u7269\u4ef6\u6216\u6982\u5ff5\u3002\u5728\u96f6\u552e\u7cfb\u7d71\u4e2d\uff0c\u5be6\u9ad4\u53ef\u80fd\u5305\u62ec\u9867\u5ba2<\/em>, \u7522\u54c1<\/em>\uff0c\u6216\u8a02\u55ae<\/em>\u3002\u5be6\u9ad4\u662f\u60a8\u8cc7\u6599\u5b87\u5b99\u4e2d\u7684\u540d\u8a5e\u3002<\/li>\n
  • \u5c6c\u6027\uff1a<\/strong> \u5b83\u5011\u662f\u63cf\u8ff0\u5be6\u9ad4\u7684\u5c6c\u6027\u6216\u7279\u5fb5\u3002\u5c0d\u65bc\u4e00\u500b\u9867\u5ba2<\/em>\uff0c\u5c6c\u6027\u53ef\u80fd\u5305\u62ec\u540d\u5b57<\/em>, \u96fb\u5b50\u90f5\u4ef6\u5730\u5740<\/em>\uff0c\u6216\u8a3b\u518a\u65e5\u671f<\/em>\u3002\u5c6c\u6027\u5b9a\u7fa9\u4e86\u6211\u5011\u9700\u8981\u5132\u5b58\u95dc\u65bc\u5be6\u9ad4\u7684\u54ea\u4e9b\u8cc7\u6599\u3002<\/li>\n
  • \u95dc\u4fc2\uff1a<\/strong> \u5b83\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u5982\u4f55\u4e92\u52d5\u3002\u4e00\u4f4d\u9867\u5ba2\u6703\u4e0b\u591a\u7b46\u8a02\u55ae\u55ce\uff1f\u4e00\u500b\u7522\u54c1\u6703\u5c6c\u65bc\u591a\u500b\u5206\u985e\u55ce\uff1f\u95dc\u4fc2\u662f\u9023\u63a5\u540d\u8a5e\u7684\u52d5\u8a5e\u3002<\/li>\n<\/ul>\n

    ERD \u7684\u7f8e\u5999\u4e4b\u8655\u5728\u65bc\u5176\u62bd\u8c61\u6027\u3002\u5b83\u4e0d\u95dc\u5fc3\u8cc7\u6599\u6700\u7d42\u6703\u5132\u5b58\u5728 PostgreSQL\u3001MySQL \u6216 NoSQL \u6587\u4ef6\u5132\u5b58\u4e2d\u3002\u5b83\u95dc\u5fc3\u7684\u662f\u8cc7\u8a0a\u7684\u5b8c\u6574\u6027\u8207\u908f\u8f2f\u6d41\u7a0b\u3002\u7b26\u865f\u98a8\u683c\u591a\u6a23\uff0c\u5176\u4e2d\u300c\u70cf\u9d09\u8173\u7b26\u865f\u300d\u662f\u8868\u793a\u57fa\u6578\uff08\u4e00\u5c0d\u4e00\u3001\u4e00\u5c0d\u591a\u3001\u591a\u5c0d\u591a\uff09\u7684\u5e38\u898b\u6a19\u6e96\u3002\u9019\u7a2e\u8996\u89ba\u8a9e\u8a00\u8b93\u5718\u968a\u80fd\u5728\u64b0\u5beb\u4efb\u4f55\u7a0b\u5f0f\u78bc\u4e4b\u524d\uff0c\u9a57\u8b49\u8cc7\u6599\u6a21\u578b\u7684\u908f\u8f2f\u3002<\/p>\n

    \u5728\u5efa\u7acb ERD \u6642\uff0c\u91cd\u9ede\u5728\u65bc\u898f\u7bc4\u5316\u3002\u9019\u6d89\u53ca\u7d44\u7e54\u8cc7\u6599\u4ee5\u6e1b\u5c11\u91cd\u8907\u4e26\u63d0\u5347\u8cc7\u6599\u5b8c\u6574\u6027\u3002\u6211\u5011\u6703\u63a2\u8a0e\u5982\u4f55\u5c07\u5927\u578b\u8868\u683c\u62c6\u5206\u70ba\u8f03\u5c0f\u4e14\u76f8\u95dc\u7684\u8868\u683c\uff0c\u4ee5\u78ba\u4fdd\u5728\u4e00\u500b\u5730\u65b9\u66f4\u65b0\u8cc7\u8a0a\u6642\uff0c\u6240\u6709\u76f8\u95dc\u8655\u90fd\u80fd\u540c\u6b65\u66f4\u65b0\u3002ERD \u5c31\u50cf\u5730\u5716\uff1b\u5b83\u986f\u793a\u9053\u8def\u8207\u5730\u6a19\uff0c\u4f46\u4e0d\u5305\u542b\u8def\u9762\u7684\u5177\u9ad4\u6750\u8cea\u3002<\/p>\n

    \u5b9a\u7fa9\u8cc7\u6599\u5eab\u7d50\u69cb\u5716 \ud83c\udfd7\ufe0f<\/h2>\n

    \u5982\u679c ERD \u662f\u5730\u5716\uff0c\u90a3\u9ebc\u7d50\u69cb\u5716\u5c31\u662f\u5be6\u969b\u7684\u9818\u571f\u672c\u8eab\u3002\u8cc7\u6599\u5eab\u7d50\u69cb\u5716\u662f\u8cc7\u6599\u5eab\u7684\u7269\u7406\u7d50\u69cb\u3002\u5b83\u662f\u4e00\u7d44\u5177\u9ad4\u7684\u5b9a\u7fa9\uff0c\u544a\u8a34\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u8cc7\u6599\u61c9\u5982\u4f55\u5132\u5b58\u3002\u96d6\u7136 ERD \u4f7f\u7528\u6982\u5ff5\u8a9e\u8a00\uff0c\u4f46\u7d50\u69cb\u5716\u5247\u4f7f\u7528\u8cc7\u6599\u985e\u578b\u3001\u7d04\u675f\u548c\u5132\u5b58\u5f15\u64ce\u4f86\u8868\u9054\u3002<\/p>\n

    \u67b6\u69cb\u5b9a\u7fa9\u4e86\u4ee5\u4e0b\u7684\u6280\u8853\u7d30\u7bc0\uff1a<\/p>\n

      \n
    • \u8cc7\u6599\u8868\uff1a<\/strong> ERD \u4e2d\u7684\u5be6\u9ad4\u6703\u8f49\u63db\u70ba\u5be6\u9ad4\u8cc7\u6599\u8868\u3002\u67b6\u69cb\u6703\u6307\u5b9a\u8cc7\u6599\u8868\u540d\u7a31\uff0c\u901a\u5e38\u5fc5\u9808\u9075\u5b88\u56b4\u683c\u7684\u547d\u540d\u6163\u4f8b\uff08\u4f8b\u5982\uff0csnake_case\uff09\u3002<\/li>\n
    • \u8cc7\u6599\u985e\u578b\uff1a<\/strong> \u985e\u4f3c\u65bc\u300c\u5e74\u9f61<\/em> \u7684\u5c6c\u6027\u6703\u8b8a\u6210\u4e00\u500b INT<\/code> \u6216 SMALLINT<\/code>\u3002\u4e00\u500b \u96fb\u5b50\u90f5\u4ef6<\/em> \u6703\u8b8a\u6210\u4e00\u500b VARCHAR<\/code>\uff0c\u4e26\u5177\u6709\u7279\u5b9a\u7684\u9577\u5ea6\u9650\u5236\u3002\u4e00\u500b \u6642\u9593\u6233\u8a18<\/em> \u6703\u8b8a\u6210 TIMESTAMP WITH TIME ZONE<\/code>\u3002\u9019\u4e9b\u9078\u64c7\u6703\u5f71\u97ff\u5132\u5b58\u7a7a\u9593\u8207\u67e5\u8a62\u6548\u80fd\u3002<\/li>\n
    • \u7d04\u675f\u689d\u4ef6\uff1a<\/strong> \u9019\u6b63\u662f ERD \u4e2d\u908f\u8f2f\u88ab\u5f37\u5236\u57f7\u884c\u7684\u5730\u65b9\u3002\u4e3b\u9375\uff08PK\uff09\u78ba\u4fdd\u552f\u4e00\u6027\u3002\u5916\u9375\uff08FK\uff09\u5f37\u5236\u57f7\u884c\u8cc7\u6599\u8868\u4e4b\u9593\u7684\u53c3\u8003\u5b8c\u6574\u6027\u3002NOT NULL<\/code> \u7d04\u675f\u689d\u4ef6\u78ba\u4fdd\u5fc5\u8981\u6b04\u4f4d\u5df2\u88ab\u586b\u5165\u3002\u552f\u4e00\u6027\u7d04\u675f\u53ef\u9632\u6b62\u91cd\u8907\u8f38\u5165\u3002<\/li>\n
    • \u7d22\u5f15\uff1a<\/strong> \u96d6\u7136\u9ad8\u968e ERD \u5e38\u5e38\u7701\u7565\u7d22\u5f15\uff0c\u4f46\u67b6\u69cb\u6703\u6c7a\u5b9a\u7d22\u5f15\u5efa\u7acb\u7684\u4f4d\u7f6e\u3002\u7d22\u5f15\u53ef\u52a0\u5feb\u8b80\u53d6\u4f5c\u696d\uff0c\u4f46\u6703\u6e1b\u6162\u5beb\u5165\u901f\u5ea6\u3002\u67b6\u69cb\u6c7a\u5b9a\u4e86\u8cc7\u6599\u5eab\u7684\u7269\u7406\u512a\u5316\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n

      \u67b6\u69cb\u4e5f\u8ca0\u8cac\u5b89\u5168\u6027\u548c\u5b58\u53d6\u63a7\u5236\u3002\u5b83\u5b9a\u7fa9\u4e86\u8ab0\u53ef\u4ee5\u8b80\u53d6\u6216\u5beb\u5165\u7279\u5b9a\u8cc7\u6599\u8868\u3002\u5b83\u8655\u7406\u4ea4\u6613\uff0c\u78ba\u4fdd\u8cc7\u6599\u8b8a\u66f4\u5177\u6709\u539f\u5b50\u6027\u3002\u7576\u958b\u767c\u4eba\u54e1\u64b0\u5beb\u4e00\u500b CREATE TABLE<\/code>\u9673\u8ff0\u5f0f\u6642\uff0c\u4ed6\u5011\u5176\u5be6\u662f\u5728\u5b9a\u7fa9\u67b6\u69cb\u3002\u9019\u6b63\u662f\u61c9\u7528\u7a0b\u5f0f\u7a0b\u5f0f\u78bc\u76f4\u63a5\u4e92\u52d5\u7684\u5be6\u4f5c\u5c64\u7d1a\u3002<\/p>\n

      \u95dc\u9375\u5dee\u7570\u4e00\u76ee\u4e86\u7136 \ud83d\udcca<\/h2>\n

      \u70ba\u4e86\u91d0\u6e05\u5169\u8005\u7684\u5dee\u7570\uff0c\u5c07\u5dee\u7570\u4e26\u5217\u6bd4\u8f03\u6703\u6709\u5e6b\u52a9\u3002ERD \u662f\u62bd\u8c61\u4e14\u4ee5\u8a2d\u8a08\u70ba\u5c0e\u5411\uff0c\u800c\u67b6\u69cb\u5247\u662f\u5177\u9ad4\u4e14\u4ee5\u5be6\u4f5c\u70ba\u5c0e\u5411\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n
      \u529f\u80fd<\/th>\nERD\uff08\u5be6\u9ad4\u95dc\u4fc2\u5716\uff09<\/th>\n\u8cc7\u6599\u5eab\u7d50\u69cb<\/th>\n<\/tr>\n<\/thead>\n
      \u6027\u8cea<\/strong><\/td>\n\u908f\u8f2f\uff0f\u6982\u5ff5\u6a21\u578b<\/td>\n\u7269\u7406\u6a21\u578b<\/td>\n<\/tr>\n
      \u91cd\u9ede<\/strong><\/td>\n\u95dc\u4fc2\u8207\u8cc7\u6599\u6d41<\/td>\n\u5132\u5b58\u8207\u5f37\u5236\u57f7\u884c<\/td>\n<\/tr>\n
      \u7b26\u865f\u8868\u793a\u6cd5<\/strong><\/td>\n\u65b9\u6846\u3001\u7dda\u689d\u3001\u70cf\u9d09\u8db3\u7b26\u865f<\/td>\nSQL \u9673\u8ff0\u5f0f\u3001DDL \u6307\u4ee4\u78bc<\/td>\n<\/tr>\n
      \u4f9d\u8cf4\u6027<\/strong><\/td>\n\u8cc7\u6599\u5eab\u7121\u95dc<\/td>\n\u8cc7\u6599\u5eab\u7279\u5b9a\uff08\u4f9b\u61c9\u5546\uff09<\/td>\n<\/tr>\n
      \u7d04\u675f\u689d\u4ef6<\/strong><\/td>\n\u96b1\u542b\uff08\u5546\u696d\u898f\u5247\uff09<\/td>\n\u660e\u78ba\uff08\u4e3b\u9375\u3001\u5916\u9375\u3001\u6aa2\u67e5\uff09<\/td>\n<\/tr>\n
      \u968e\u6bb5<\/strong><\/td>\n\u8a2d\u8a08\u968e\u6bb5<\/td>\n\u958b\u767c\uff0f\u90e8\u7f72\u968e\u6bb5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u6b64\u8868\u683c\u5f37\u8abf\uff0c\u5118\u7ba1\u5b83\u5011\u5f7c\u6b64\u95dc\u806f\uff0c\u4f46\u537b\u5728\u8edf\u9ad4\u751f\u547d\u9031\u671f\u7684\u4e0d\u540c\u968e\u6bb5\u904b\u4f5c\u3002\u6df7\u6dc6\u9019\u5169\u8005\u901a\u5e38\u6703\u5c0e\u81f4\u958b\u767c\u4eba\u54e1\u5728\u908f\u8f2f\u6a21\u578b\u5c1a\u672a\u5b8c\u5168\u9a57\u8b49\u524d\uff0c\u4fbf\u8a66\u5716\u5c07\u7269\u7406\u7d04\u675f\u5f37\u52a0\u65bc\u5176\u4e0a\u3002<\/p>\n

      \u8f49\u63db\u6d41\u7a0b\uff1a\u5f9e\u5716\u8868\u5230\u7a0b\u5f0f\u78bc \ud83d\udd04<\/h2>\n

      \u5f9e ERD \u5230\u7d50\u69cb\u7684\u8f49\u63db\u904e\u7a0b\u4e26\u975e\u7e3d\u662f\u76f4\u63a5\u7684\u4e00\u5c0d\u4e00\u5c0d\u61c9\u3002\u9019\u500b\u8f49\u63db\u5c64\u6b63\u662f\u8a31\u591a\u5c08\u6848\u906d\u9047\u6469\u64e6\u7684\u5730\u65b9\u3002\u908f\u8f2f\u6a21\u578b\u5047\u8a2d\u8655\u65bc\u7406\u60f3\u689d\u4ef6\uff0c\u4f46\u7269\u7406\u6a21\u578b\u5fc5\u9808\u9762\u5c0d\u6548\u80fd\u3001\u907a\u7559\u7cfb\u7d71\u4ee5\u53ca\u7279\u5b9a\u5f15\u64ce\u7684\u529f\u80fd\u9650\u5236\u3002<\/p>\n

      \u6b63\u898f\u5316 vs. \u6548\u80fd<\/h3>\n

      ERD \u901a\u5e38\u6703\u88ab\u6b63\u898f\u5316\u81f3\u7b2c\u4e09\u6b63\u898f\u5316\u5f62\u5f0f\uff083NF\uff09\u3002\u9019\u80fd\u6700\u5c0f\u5316\u8cc7\u6599\u91cd\u8907\u3002\u7136\u800c\uff0c\u5728\u8f49\u63db\u70ba\u9ad8\u6d41\u91cf\u61c9\u7528\u7a0b\u5f0f\u7684\u7d50\u69cb\u6642\uff0c\u958b\u767c\u4eba\u54e1\u7d93\u5e38\u6703\u53cd\u6b63\u898f\u5316\u3002\u9019\u610f\u5473\u8457\u6545\u610f\u91cd\u8907\u8cc7\u6599\uff0c\u4ee5\u6e1b\u5c11\u67e5\u8a62\u6642\u6240\u9700\u7684\u9023\u63a5\u6b21\u6578\u3002\u4f8b\u5982\uff0c\u5c07\u300c\u5ba2\u6236\u59d3\u540d<\/em>\u300d\u76f4\u63a5\u5132\u5b58\u5728\u300c\u8a02\u55ae<\/em>\u300d\u8cc7\u6599\u8868\u4e2d\uff0c\u5373\u4f7f\u9055\u53cd\u56b4\u683c\u7684\u6b63\u898f\u5316\u898f\u5247\uff0c\u4e5f\u80fd\u986f\u8457\u52a0\u5feb\u5831\u8868\u67e5\u8a62\u7684\u901f\u5ea6\u3002ERD \u53ef\u80fd\u986f\u793a\u4e00\u500b\u95dc\u4fc2\uff0c\u4f46\u7d50\u69cb\u53ef\u80fd\u6703\u70ba\u4e86\u901f\u5ea6\u800c\u5197\u9918\u5132\u5b58\u8cc7\u6599\u3002<\/p>\n

      \u8cc7\u6599\u985e\u578b\u7684\u7d30\u7bc0<\/h3>\n

      ERD \u53ea\u662f\u8aaa\u660e\u4e00\u500b\u6b04\u4f4d\u662f\u65e5\u671f<\/em>\u3002\u8cc7\u6599\u7d50\u69cb\u5fc5\u9808\u6c7a\u5b9a\u5728\u4ee5\u4e0b\u4e4b\u9593\u9078\u64c7DATE<\/code>, DATETIME<\/code>\uff0c\u6216TIMESTAMP<\/code>\u3002\u5b83\u5fc5\u9808\u6c7a\u5b9a\u5b57\u5143\u96c6\uff08UTF8\u3001ASCII\uff09\u548c\u6392\u5e8f\u898f\u5247\u3002\u9019\u4e9b\u6c7a\u7b56\u6703\u5f71\u97ff\u61c9\u7528\u7a0b\u5f0f\u8655\u7406\u570b\u969b\u5316\u548c\u6392\u5e8f\u7684\u65b9\u5f0f\u3002\u4e00\u822c\u7684 ERD \u7121\u6cd5\u6355\u6349\u9019\u4e9b\u7d30\u5fae\u5dee\u5225\u3002<\/p>\n

      \u8655\u7406\u591a\u5c0d\u591a\u95dc\u4fc2<\/h3>\n

      \u5728 ERD \u4e2d\uff0c\u591a\u5c0d\u591a\u95dc\u4fc2\u4ee5\u5e36\u6709\u96d9\u91cd\u70cf\u9d09\u8173\u7684\u7dda\u689d\u8868\u793a\u3002\u5728\u5be6\u969b\u8cc7\u6599\u7d50\u69cb\u4e2d\uff0c\u9019\u7a2e\u95dc\u4fc2\u7121\u6cd5\u76f4\u63a5\u5b58\u5728\uff0c\u5fc5\u9808\u900f\u904e\u4e00\u500b\u95dc\u806f\u8868\uff08\u6216\u6a4b\u63a5\u8868\uff09\u8f49\u63db\u70ba\u5169\u500b\u4e00\u5c0d\u591a\u95dc\u4fc2\u3002\u8cc7\u6599\u7d50\u69cb\u5fc5\u9808\u5b9a\u7fa9\u6b64\u95dc\u806f\u8868\u7684\u4e3b\u9375\uff0c\u5176\u53ef\u80fd\u662f\u8907\u5408\u9375\u6216\u4ee3\u7406\u9375\uff08UUID\uff09\u3002\u9019\u7a2e\u7d50\u69cb\u4e0a\u7684\u8b8a\u66f4\u5728\u9ad8\u968e\u5716\u793a\u4e2d\u662f\u770b\u4e0d\u898b\u7684\uff0c\u4f46\u5728\u8cc7\u6599\u5eab\u7d50\u69cb\u4e2d\u537b\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

      \u70ba\u4f55\u9019\u5340\u5225\u5c0d\u958b\u767c\u4eba\u54e1\u81f3\u95dc\u91cd\u8981 \ud83d\udee0\ufe0f<\/h2>\n

      \u7406\u89e3\u9019\u5169\u500b\u6982\u5ff5\u4e4b\u9593\u7684\u5dee\u8ddd\u4e0d\u50c5\u50c5\u662f\u7406\u8ad6\u554f\u984c\uff1b\u5b83\u6703\u5f71\u97ff\u65e5\u5e38\u958b\u767c\u5de5\u4f5c\u3002\u7576\u8cc7\u6599\u5b8c\u6574\u6027\u51fa\u73fe\u932f\u8aa4\u6642\uff0c\u5224\u65b7\u554f\u984c\u51fa\u5728\u908f\u8f2f\u8a2d\u8a08\u9084\u662f\u5be6\u969b\u5be6\u4f5c\uff0c\u662f\u89e3\u6c7a\u554f\u984c\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n

      \u9664\u932f\u8cc7\u6599\u5b8c\u6574\u6027<\/h3>\n

      \u5982\u679c\u4f60\u9047\u5230\u8cc7\u6599\u610f\u5916\u91cd\u8907\u7684\u60c5\u6cc1\uff0c\u4f60\u9700\u8981\u554f\uff1a\u662f ERD \u8a2d\u8a08\u6709\u554f\u984c\uff0c\u9084\u662f\u8cc7\u6599\u7d50\u69cb\u4e2d\u7f3a\u5c11\u7d04\u675f\uff1f\u8cc7\u6599\u7d50\u69cb\u4e2d\u907a\u6f0f\u5916\u9375\u6703\u5c0e\u81f4\u5b64\u5152\u8a18\u9304\u5b58\u5728\uff0c\u800c ERD \u7684\u908f\u8f2f\u539f\u672c\u5047\u8a2d\u9019\u7a2e\u60c5\u6cc1\u4e0d\u53ef\u80fd\u767c\u751f\u3002\u76f8\u53cd\u5730\uff0c\u5982\u679c ERD \u592a\u904e\u50f5\u5316\uff0c\u672a\u8003\u616e\u8edf\u522a\u9664\uff0c\u8cc7\u6599\u7d50\u69cb\u53ef\u80fd\u6703\u5f37\u5236\u57f7\u884c\u786c\u522a\u9664\uff0c\u5f9e\u800c\u7834\u58de\u696d\u52d9\u908f\u8f2f\u3002\u5206\u96e2\u9019\u4e9b\u95dc\u6ce8\u9ede\uff0c\u624d\u80fd\u7cbe\u78ba\u5b9a\u4f4d\u932f\u8aa4\u4f86\u6e90\u3002<\/p>\n

      \u7248\u672c\u63a7\u5236\u8207\u5354\u4f5c<\/h3>\n

      \u5728\u7ba1\u7406\u8cc7\u6599\u5eab\u6642\uff0c\u7248\u672c\u63a7\u5236\u81f3\u95dc\u91cd\u8981\u3002\u7136\u800c\uff0cERD \u548c\u8cc7\u6599\u7d50\u69cb\u7684\u6f14\u8b8a\u65b9\u5f0f\u4e0d\u540c\u3002ERD \u6703\u5728\u696d\u52d9\u9700\u6c42\u8b8a\u66f4\u6642\u66f4\u65b0\uff0c\u800c\u8cc7\u6599\u7d50\u69cb\u5247\u5728\u8cc7\u6599\u5eab\u9700\u8981\u512a\u5316\u6216\u57f7\u884c\u9077\u79fb\u6642\u8b8a\u66f4\u3002\u4fdd\u6301\u5169\u8005\u540c\u6b65\u662f\u4e00\u5927\u6311\u6230\u3002\u5982\u679c\u8cc7\u6599\u7d50\u69cb\u8b8a\u66f4\u537b\u672a\u66f4\u65b0 ERD\uff0c\u6587\u4ef6\u5c31\u6703\u904e\u6642\u3002\u5982\u679c ERD \u8b8a\u66f4\u537b\u6c92\u6709\u5c0d\u61c9\u7684\u9077\u79fb\u8173\u672c\uff0c\u8cc7\u6599\u5eab\u5c07\u8207\u8a2d\u8a08\u4e0d\u4e00\u81f4\u3002<\/p>\n

      \u65b0\u6210\u54e1\u5165\u8077<\/h3>\n

      \u65b0\u958b\u767c\u4eba\u54e1\u7d93\u5e38\u96e3\u4ee5\u7406\u89e3\u8cc7\u6599\u5eab\u7d50\u69cb\u3002\u5411\u4ed6\u5011\u5c55\u793a ERD \u53ef\u4ee5\u63d0\u4f9b\u7cfb\u7d71\u5728\u6982\u5ff5\u4e0a\u5982\u4f55\u904b\u4f5c\u7684\u80cc\u666f\u3002\u5411\u4ed6\u5011\u5c55\u793a\u8cc7\u6599\u7d50\u69cb\u5247\u80fd\u63d0\u4f9b\u7cfb\u7d71\u5728\u6280\u8853\u4e0a\u5982\u4f55\u904b\u4f5c\u7684\u80cc\u666f\u3002\u6709\u6548\u7684\u5165\u8077\u6d41\u7a0b\u9700\u8981\u5169\u8005\u517c\u5099\u3002ERD \u56de\u7b54\u300c\u9019\u4ee3\u8868\u4ec0\u9ebc\u610f\u601d\uff1f\u300d<\/em>\uff0c\u800c\u8cc7\u6599\u7d50\u69cb\u5247\u56de\u7b54\u300c\u6211\u8a72\u5982\u4f55\u5b58\u53d6\u5b83\uff1f\u300d<\/em>.<\/p>\n

      \u8cc7\u6599\u6a21\u578b\u8a2d\u8a08\u4e2d\u7684\u5e38\u898b\u9677\u9631 \ud83d\udea7<\/h2>\n

      \u5118\u7ba1\u5b9a\u7fa9\u6e05\u6670\uff0c\u8a31\u591a\u5718\u968a\u5728\u5c07 ERD \u8207\u8cc7\u6599\u7d50\u69cb\u8996\u70ba\u76f8\u540c\u6642\u4ecd\u6703\u9677\u5165\u9677\u9631\u3002<\/p>\n

        \n
      • \u8df3\u904e ERD\uff1a<\/strong>\u76f4\u63a5\u8df3\u5230\u64b0\u5beb SQL \u8cc7\u6599\u7d50\u69cb\u8173\u672c\uff0c\u5f80\u5f80\u6703\u5c0e\u81f4\u7d50\u69cb\u6027\u50b5\u52d9\u3002\u7f3a\u4e4f\u8996\u89ba\u5316\u6a21\u578b\u6642\uff0c\u95dc\u4fc2\u5e38\u88ab\u907a\u5fd8\u6216\u4e0d\u4e00\u81f4\u5730\u5be6\u4f5c\u3002<\/li>\n
      • \u5ffd\u7565\u7d04\u675f\uff1a<\/strong>\u50c5\u4f9d\u8cf4\u61c9\u7528\u7a0b\u5f0f\u7a0b\u5f0f\u78bc\u4f86\u5f37\u5236\u57f7\u884c\u898f\u5247\uff08\u4f8b\u5982\u552f\u4e00\u96fb\u5b50\u90f5\u4ef6\uff09\u800c\u975e\u8cc7\u6599\u5eab\u7d04\u675f\uff08UNIQUE \u7d22\u5f15\uff09\u662f\u9ad8\u98a8\u96aa\u7684\u3002\u8cc7\u6599\u7d50\u69cb\u61c9\u662f\u8cc7\u6599\u5b8c\u6574\u6027\u6700\u5f8c\u4e00\u9053\u9632\u7dda\u3002<\/li>\n
      • \u904e\u5ea6\u8a2d\u8a08\uff1a<\/strong> \u5728\u9700\u6c42\u5c1a\u672a\u660e\u78ba\u4e4b\u524d\uff0c\u5c31\u5275\u5efa\u904e\u65bc\u8a73\u7d30\u7684ERD\uff0c\u5305\u542b\u6240\u6709\u53ef\u80fd\u7684\u5c6c\u6027\u3002\u9019\u6703\u5c0e\u81f4\u5f8c\u7e8c\u9077\u79fb\u6642\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u8b8a\u5f97\u96e3\u4ee5\u8655\u7406\u3002<\/li>\n
      • \u5de5\u5177\u812b\u7bc0\uff1a<\/strong> \u4f7f\u7528\u7121\u6cd5\u652f\u63f4\u7a0b\u5f0f\u78bc\u751f\u6210\u7684\u8a2d\u8a08\u5de5\u5177\uff0c\u6216\u4f7f\u7528\u7121\u6cd5\u652f\u63f4\u9006\u5411\u5de5\u7a0b\u7684\u8cc7\u6599\u5eab\u5de5\u5177\u3002\u9019\u6703\u9020\u6210\u624b\u52d5\u7f3a\u53e3\uff0c\u5c0e\u81f4\u8b8a\u66f4\u53ea\u5728\u4e00\u500b\u5730\u65b9\u9032\u884c\uff0c\u800c\u53e6\u4e00\u8655\u672a\u540c\u6b65\u3002<\/li>\n
      • \u5047\u8a2d\u7b49\u50f9\u6027\uff1a<\/strong> \u8a8d\u70ba\u5b8c\u7f8e\u7684ERD\u5c31\u80fd\u4fdd\u8b49\u5b8c\u7f8e\u7684\u8cc7\u6599\u5eab\u3002\u5be6\u969b\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u6703\u53d7\u5230\u786c\u9ad4\u9650\u5236\u3001\u67e5\u8a62\u6a21\u5f0f\u8207\u4e26\u767c\u554f\u984c\u7684\u5f71\u97ff\uff0c\u800c\u9019\u4e9b\u662fERD\u7121\u6cd5\u9810\u898b\u7684\u3002<\/li>\n<\/ul>\n

        \u9577\u671f\u7dad\u6301\u540c\u6b65 \ud83d\udd04<\/h2>\n

        \u96a8\u8457\u61c9\u7528\u7a0b\u5f0f\u6210\u9577\uff0c\u8cc7\u6599\u5eab\u4e5f\u6703\u6f14\u9032\u3002\u529f\u80fd\u88ab\u65b0\u589e\uff0c\u820a\u529f\u80fd\u5247\u88ab\u68c4\u7528\u3002\u7dad\u6301ERD\u8207\u8cc7\u6599\u7d50\u69cb\u4e4b\u9593\u7684\u9023\u7d50\u6703\u96a8\u8457\u6642\u9593\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u56f0\u96e3\u3002\u9019\u901a\u5e38\u88ab\u7a31\u70ba\u7d50\u69cb\u504f\u79fb<\/em>.<\/p>\n

        \u70ba\u61c9\u5c0d\u6b64\u554f\u984c\uff0c\u5718\u968a\u61c9\u63a1\u7528\u56b4\u683c\u7684\u5de5\u4f5c\u6d41\u7a0b\uff1a<\/p>\n

          \n
        1. \u5148\u8a2d\u8a08\uff1a<\/strong> \u59cb\u7d42\u5728\u64b0\u5beb\u9077\u79fb\u8173\u672c\u524d\u5148\u66f4\u65b0ERD\u3002<\/li>\n
        2. \u81ea\u52d5\u5316\u751f\u6210\uff1a<\/strong> \u4f7f\u7528\u80fd\u5f9eERD\u751f\u6210SQL DDL\u7684\u5de5\u5177\u3002\u9019\u80fd\u78ba\u4fdd\u8cc7\u6599\u7d50\u69cb\u8207\u8a2d\u8a08\u4e00\u81f4\u3002<\/li>\n
        3. \u9006\u5411\u5de5\u7a0b\uff1a<\/strong> \u5b9a\u671f\u5c0d\u7dda\u4e0a\u8cc7\u6599\u5eab\u57f7\u884c\u9006\u5411\u5de5\u7a0b\u5de5\u5177\uff0c\u4ee5\u66f4\u65b0ERD\u3002\u9019\u80fd\u6355\u6349\u5230\u900f\u904e\u76f4\u63a5SQL\u67e5\u8a62\u6240\u505a\u7684\u8b8a\u66f4\uff0c\u9019\u4e9b\u8b8a\u66f4\u8df3\u904e\u4e86\u8a2d\u8a08\u6d41\u7a0b\u3002<\/li>\n
        4. \u6587\u4ef6\u5316\uff1a<\/strong> \u78ba\u4fddERD\u8207\u8cc7\u6599\u7d50\u69cb\u9077\u79fb\u8173\u672c\u5132\u5b58\u5728\u540c\u4e00\u500b\u7a0b\u5f0f\u78bc\u5eab\u4e2d\u3002\u9019\u80fd\u5efa\u7acb\u55ae\u4e00\u53ef\u4fe1\u4f86\u6e90\u3002<\/li>\n<\/ol>\n

          \u9019\u7a2e\u7d00\u5f8b\u80fd\u9632\u6b62\u8cc7\u6599\u5eab\u8b8a\u6210\u9ed1\u7bb1\u3002\u7576ERD\u8207\u8cc7\u6599\u7d50\u69cb\u4fdd\u6301\u540c\u6b65\u6642\uff0c\u7cfb\u7d71\u4fbf\u80fd\u4fdd\u6301\u900f\u660e\u4e14\u53ef\u7ba1\u7406\u3002<\/p>\n

          \u5c0d\u67e5\u8a62\u6548\u80fd\u8207\u512a\u5316\u7684\u5f71\u97ff \u26a1<\/h2>\n

          \u8cc7\u6599\u7d50\u69cb\u5c0d\u6548\u80fd\u7684\u5f71\u97ff\u5927\u65bcERD\u3002\u96d6\u7136ERD\u986f\u793a\u95dc\u4fc2\uff0c\u4f46\u8cc7\u6599\u7d50\u69cb\u6c7a\u5b9a\u4e86\u8cc7\u6599\u5eab\u5f15\u64ce\u5982\u4f55\u5b58\u53d6\u8cc7\u6599\u3002ERD\u53ef\u80fd\u986f\u793a\u300c\u4f7f\u7528\u8005\u300d\u8207\u300c\u6587\u7ae0\u300d\u4e4b\u9593\u5b58\u5728\u908f\u8f2f\u95dc\u806f\uff0c\u4f7f\u7528\u8005<\/em>\u8207\u6587\u7ae0<\/em>\u3002\u4f46\u5be6\u969b\u4e0a\uff0c\u8cc7\u6599\u7d50\u69cb\u624d\u6c7a\u5b9a\u300c\u6587\u7ae0\u300d\u8cc7\u6599\u8868\u4e2d\u7684\u300c\u4f7f\u7528\u8005\u7de8\u865f\u300d\u6b04\u4f4d\u662f\u5426\u5efa\u7acb\u7d22\u5f15\u3002\u4f7f\u7528\u8005\u7de8\u865f<\/em>\u6b04\u4f4d\u662f\u5426\u5b58\u5728\u7d22\u5f15\u3002\u6587\u7ae0<\/em>\u8cc7\u6599\u8868\u4e2d\u3002<\/p>\n

          \u5728\u6a21\u5f0f\u4e2d\u6c92\u6709\u9069\u7576\u7684\u7d22\u5f15\uff0c\u7c21\u55ae\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u89f8\u767c\u5168\u8868\u6383\u63cf\u3002\u9019\u662f\u4e00\u7a2e\u7269\u7406\u9650\u5236\u3002ERD \u7121\u6cd5\u986f\u793a\u57f7\u884c\u8a08\u756b\u3002\u958b\u767c\u4eba\u54e1\u5fc5\u9808\u67e5\u770b\u6a21\u5f0f\uff0c\u624d\u80fd\u7406\u89e3\u67e5\u8a62\u70ba\u4f55\u7de9\u6162\u3002\u4ed6\u5011\u5fc5\u9808\u5206\u6790\u7d22\u5f15\u3001\u5206\u5340\u7b56\u7565\u4ee5\u53ca\u8cc7\u6599\u985e\u578b\u3002<\/p>\n

          \u6b64\u5916\uff0c\u6a21\u5f0f\u8655\u7406\u9396\u5b9a\u6a5f\u5236\u3002\u5982\u679c\u591a\u500b\u4f7f\u7528\u8005\u66f4\u65b0\u540c\u4e00\u7b46\u8a18\u9304\uff0c\u6a21\u5f0f\u7684\u9694\u96e2\u7b49\u7d1a\u548c\u9396\u5b9a\u7b56\u7565\u5c07\u6c7a\u5b9a\u5b83\u5011\u662f\u5426\u6703\u4e92\u76f8\u963b\u585e\u3002ERD \u5c0d\u4f75\u767c\u64cd\u4f5c\u4fdd\u6301\u6c89\u9ed8\u3002\u9019\u5c0d\u65bc\u9ad8\u8ca0\u8f09\u7cfb\u7d71\u4f86\u8aaa\u662f\u4e00\u500b\u95dc\u9375\u5340\u5225\u3002<\/p>\n

          \u900f\u904e\u6700\u4f73\u5be6\u52d9\u5f4c\u5408\u5dee\u8ddd \ud83c\udfc6<\/h2>\n

          \u70ba\u4e86\u78ba\u4fdd\u5169\u7a2e\u6a21\u578b\u90fd\u80fd\u6709\u6548\u767c\u63ee\u4f5c\u7528\uff0c\u5efa\u8b70\u63a1\u7528\u4ee5\u4e0b\u6a19\u6e96\uff1a<\/p>\n

            \n
          • \u4f7f\u7528\u6a19\u6e96\u547d\u540d\u6163\u4f8b\uff1a<\/strong> \u78ba\u4fdd\u6a21\u5f0f\u4e2d\u7684\u8868\u683c\u540d\u7a31\u8207 ERD \u4e2d\u7684\u5be6\u9ad4\u540d\u7a31\u4e00\u81f4\u3002\u4e00\u81f4\u6027\u53ef\u964d\u4f4e\u8a8d\u77e5\u8ca0\u8377\u3002<\/li>\n
          • \u660e\u78ba\u8a18\u9304\u7d04\u675f\u689d\u4ef6\uff1a<\/strong> \u5728 ERD \u4e2d\uff0c\u4ee5\u57fa\u6578\u6a19\u8a3b\u95dc\u4fc2\u3002\u5728\u6a21\u5f0f\u4e2d\uff0c\u4ee5\u7d04\u675f\u6a19\u8a3b\u6b04\u4f4d\u3002\u8b93\u898f\u5247\u5728\u5169\u8655\u90fd\u6e05\u6670\u53ef\u898b\u3002<\/li>\n
          • \u5b9a\u671f\u5be9\u67e5\uff1a<\/strong> \u8a08\u756b\u6bcf\u5b63\u5c0d\u7167\u751f\u7522\u74b0\u5883\u7684\u6a21\u5f0f\u5be9\u67e5 ERD\u3002\u5c0b\u627e\u504f\u5dee\u8207\u7570\u5e38\u3002<\/li>\n
          • \u5206\u96e2\u95dc\u6ce8\u9ede\uff1a<\/strong> \u5c07 ERD \u8996\u70ba\u696d\u52d9\u8cc7\u7522\uff0c\u5c07\u6a21\u5f0f\u8996\u70ba\u6280\u8853\u8cc7\u7522\u3002\u4e0d\u8981\u5c07\u696d\u52d9\u908f\u8f2f\u6df7\u5165\u7269\u7406\u6a21\u5f0f\u5b9a\u7fa9\u4e2d\u3002<\/li>\n
          • \u898f\u5283\u9077\u79fb\uff1a<\/strong> \u7576 ERD \u8b8a\u66f4\u6642\uff0c\u6a21\u5f0f\u5fc5\u9808\u900f\u904e\u9077\u79fb\u8173\u672c\u9032\u884c\u8b8a\u66f4\u3002\u6c38\u9060\u4e0d\u8981\u5728\u6c92\u6709\u7248\u672c\u5316\u8173\u672c\u7684\u60c5\u6cc1\u4e0b\u76f4\u63a5\u5728\u751f\u7522\u74b0\u5883\u4e2d\u4fee\u6539\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n

            \u8cc7\u6599\u6a21\u578b\u7684\u4eba\u6027\u5143\u7d20 \ud83d\udc65<\/h2>\n

            \u6700\u7d42\uff0c\u9019\u4e9b\u6a21\u578b\u662f\u70ba\u4eba\u985e\u8a2d\u8a08\u7684\uff0c\u800c\u4e0d\u50c5\u50c5\u662f\u6a5f\u5668\u3002ERD \u7528\u65bc\u6e9d\u901a\u3002\u5b83\u8b93\u7522\u54c1\u7d93\u7406\u5373\u4f7f\u4e0d\u61c2 SQL \u4e5f\u80fd\u7406\u89e3\u8cc7\u6599\u7d50\u69cb\u3002\u6a21\u5f0f\u5247\u662f\u7d66\u6a5f\u5668\u4f7f\u7528\u7684\u3002\u5b83\u8b93\u61c9\u7528\u7a0b\u5f0f\u80fd\u9ad8\u6548\u5730\u53d6\u5f97\u8cc7\u6599\u3002<\/p>\n

            \u7576\u958b\u767c\u4eba\u54e1\u7406\u89e3\u9019\u7a2e\u4eba\u6a5f\u4e4b\u9593\u7684\u5340\u5225\u6642\uff0c\u4ed6\u5011\u5c31\u80fd\u8a2d\u8a08\u51fa\u66f4\u597d\u7684\u7cfb\u7d71\u3002\u4ed6\u5011\u77e5\u9053\u4f55\u6642\u8a72\u70ba\u5229\u5bb3\u95dc\u4fc2\u4eba\u7c21\u5316 ERD\uff0c\u4f55\u6642\u8a72\u70ba\u8cc7\u6599\u5eab\u5f15\u64ce\u8a73\u8ff0\u6a21\u5f0f\u3002\u9019\u7a2e\u96d9\u91cd\u6027\u6b63\u662f\u8cc7\u6599\u5eab\u67b6\u69cb\u7684\u672c\u8cea\u3002<\/p>\n

            \u900f\u904e\u5c0a\u91cd\u908f\u8f2f\u5716\u8207\u7269\u7406\u5be6\u4f5c\u4e4b\u9593\u7684\u754c\u9650\uff0c\u5718\u968a\u53ef\u4ee5\u907f\u514d\u8cc7\u6599\u640d\u58de\u8207\u6548\u80fd\u74f6\u9838\u7b49\u5e38\u898b\u9677\u9631\u3002ERD \u63d0\u4f9b\u9858\u666f\uff1b\u6a21\u5f0f\u63d0\u4f9b\u73fe\u5be6\u3002\u5169\u8005\u5c0d\u65bc\u6210\u529f\u7684\u7cfb\u7d71\u90fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

            \u95dc\u65bc\u8cc7\u6599\u67b6\u69cb\u7684\u6700\u5f8c\u60f3\u6cd5 \ud83e\udde0<\/h2>\n

            \u5be6\u9ad4\u95dc\u4fc2\u5716\u8207\u8cc7\u6599\u5eab\u6a21\u5f0f\u4e4b\u9593\u7684\u5340\u5225\uff0c\u662f\u8edf\u9ad4\u5de5\u7a0b\u7684\u6839\u672c\u652f\u67f1\u3002\u5b83\u4ee3\u8868\u4e86\u5f9e\u601d\u8003\u5230\u884c\u52d5\u3001\u5f9e\u69cb\u60f3\u5230\u57f7\u884c\u7684\u8f49\u8b8a\u3002\u96d6\u7136 ERD \u6355\u6349\u63a8\u52d5\u696d\u52d9\u7684\u95dc\u4fc2\u8207\u908f\u8f2f\uff0c\u6a21\u5f0f\u5247\u6355\u6349\u63a8\u52d5\u61c9\u7528\u7a0b\u5f0f\u7684\u7d04\u675f\u8207\u7d50\u69cb\u3002<\/p>\n

            \u638c\u63e1\u9019\u5169\u7a2e\u6a21\u578b\u4e4b\u9593\u7684\u95dc\u4fc2\uff0c\u4e26\u975e\u50c5\u50c5\u8a18\u61b6\u5b9a\u7fa9\u3002\u800c\u662f\u8981\u7406\u89e3\u8cc7\u6599\u7684\u751f\u547d\u5468\u671f\u3002\u8981\u77e5\u9053\u5716\u8868\u4e2d\u7684\u8b8a\u66f4\u9700\u8981\u4ee3\u78bc\u7684\u8b8a\u66f4\uff0c\u800c\u4ee3\u78bc\u7684\u8b8a\u66f4\u5fc5\u9808\u53cd\u6620\u56de\u5716\u8868\u3002\u9019\u500b\u5faa\u74b0\u78ba\u4fdd\u7cfb\u7d71\u4fdd\u6301\u4e00\u81f4\u3001\u53ef\u9760\u4e14\u53ef\u64f4\u5c55\u3002<\/p>\n

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