{"id":1654,"date":"2026-03-23T11:07:48","date_gmt":"2026-03-23T11:07:48","guid":{"rendered":"https:\/\/www.viz-read.com\/tw\/common-erd-confusion-debunking-myths\/"},"modified":"2026-03-23T11:07:48","modified_gmt":"2026-03-23T11:07:48","slug":"common-erd-confusion-debunking-myths","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/tw\/common-erd-confusion-debunking-myths\/","title":{"rendered":"\u5e38\u898b\u7684ERD\u56f0\u60d1\uff1a\u7834\u89e3\u6bcf\u4f4d\u521d\u7d1a\u5de5\u7a0b\u5e2b\u90fd\u6703\u9047\u5230\u7684\u8ff7\u601d"},"content":{"rendered":"

\u8a2d\u8a08\u7a69\u5065\u7684\u8cc7\u6599\u6a21\u578b\u662f\u5f8c\u7aef\u5de5\u7a0b\u5e2b\u6216\u8cc7\u6599\u67b6\u69cb\u5e2b\u6700\u91cd\u8981\u7684\u6280\u80fd\u4e4b\u4e00\u3002\u6b64\u904e\u7a0b\u7684\u6838\u5fc3\u5728\u65bc\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09\u3002\u5b83\u4f5c\u70ba\u7cfb\u7d71\u4e2d\u8cc7\u8a0a\u5132\u5b58\u3001\u5b58\u53d6\u8207\u95dc\u806f\u7684\u85cd\u5716\u3002\u5118\u7ba1\u5176\u91cd\u8981\u6027\u81f3\u95dc\u7dca\u8981\uff0c\u8a31\u591a\u521d\u7d1a\u5de5\u7a0b\u5e2b\u5728\u5efa\u7acbERD\u6642\u4ecd\u62b1\u6301\u8aa4\u89e3\uff0c\u9019\u4e9b\u8aa4\u89e3\u53ef\u80fd\u5c0e\u81f4\u5c08\u6848\u751f\u547d\u9031\u671f\u5f8c\u671f\u51fa\u73fe\u7d50\u69cb\u6027\u50b5\u52d9\u3002<\/p>\n

\u672c\u6307\u5357\u91dd\u5c0d\u8cc7\u6599\u5eab\u7d50\u69cb\u8a2d\u8a08\u4e2d\u6700\u6839\u6df1\u8482\u56fa\u7684\u8aa4\u89e3\u9032\u884c\u8aaa\u660e\u3002\u900f\u904e\u91d0\u6e05\u9019\u4e9b\u89c0\u9ede\uff0c\u60a8\u5c31\u80fd\u5efa\u69cb\u51fa\u53ef\u64f4\u5c55\u3001\u6613\u7dad\u8b77\u4e14\u908f\u8f2f\u6e05\u6670\u7684\u7cfb\u7d71\u3002\u8b93\u6211\u5011\u4f86\u63a2\u8a0e\u80cc\u5f8c\u7684\u771f\u5be6\u60c5\u6cc1\u3002<\/p>\n

\n
\"Kawaii-style<\/figure>\n<\/div>\n

1. ERD\u4ee3\u8868\u6700\u7d42\u7684\u8cc7\u6599\u5eab\u7d50\u69cb \ud83d\udcd0<\/h2>\n

\u4e00\u500b\u5e38\u898b\u7684\u8aa4\u89e3\u662f\uff0c\u898f\u5283\u968e\u6bb5\u7e6a\u88fd\u7684\u521d\u59cb\u5716\u8868\u5fc5\u9808\u5728\u6574\u500b\u958b\u767c\u904e\u7a0b\u4e2d\u4fdd\u6301\u4e0d\u8b8a\u3002\u8a31\u591a\u521d\u968e\u5de5\u7a0b\u5e2b\u8a8d\u70baERD\u662f\u4e00\u4efd\u7121\u6cd5\u8f15\u6613\u4fee\u6539\u7684\u5408\u7d04\uff0c\u5426\u5247\u5c07\u4ed8\u51fa\u5de8\u5927\u4ee3\u50f9\u3002\u96d6\u7136\u4e00\u81f4\u6027\u81f3\u95dc\u91cd\u8981\uff0c\u4f46\u5c07\u5716\u8868\u8996\u70ba\u50f5\u5316\u4e0d\u8b8a\u7684\u77f3\u677f\uff0c\u5f80\u5f80\u6703\u5c0e\u81f4\u9069\u61c9\u6027\u5dee\u3002<\/p>\n

    \n
  • \u8fed\u4ee3\u8a2d\u8a08\uff1a<\/strong>\u8cc7\u6599\u5eab\u5efa\u6a21\u662f\u4e00\u500b\u8fed\u4ee3\u7684\u904e\u7a0b\u3002\u96a8\u8457\u9700\u6c42\u6f14\u8b8a\uff0c\u8cc7\u6599\u7d50\u69cb\u4e5f\u5fc5\u9808\u96a8\u4e4b\u8abf\u6574\u3002<\/li>\n
  • \u91cd\u69cb\uff1a<\/strong> \u901a\u5e38\u5728\u65e9\u671f\u91cd\u69cb\u8cc7\u6599\u8868\u7d50\u69cb\uff0c\u6bd4\u651c\u5e36\u6280\u8853\u50b5\u52d9\u591a\u5e74\u8981\u597d\u5f97\u591a\u3002<\/li>\n
  • \u6587\u4ef6\u5316\uff1a<\/strong> ERD\u4f5c\u70ba\u6d3b\u6587\u4ef6\u4f7f\u7528\u3002\u4e00\u65e6\u767c\u751f\u7d50\u69cb\u8b8a\u66f4\uff0c\u5c31\u61c9\u7acb\u5373\u66f4\u65b0\u3002<\/li>\n<\/ul>\n

    \u4e0d\u8981\u5c07\u5716\u8868\u8996\u70ba\u6700\u7d42\u76ee\u6a19\uff0c\u800c\u61c9\u8996\u70ba\u7576\u524d\u7406\u89e3\u7684\u5feb\u7167\u3002\u654f\u6377\u65b9\u6cd5\u8ad6\u9f13\u52f5\u5f48\u6027\u3002\u82e5\u51fa\u73fe\u65b0\u9700\u6c42\uff0c\u9700\u8981\u5be6\u9ad4\u4e4b\u9593\u5efa\u7acb\u4e0d\u540c\u7684\u95dc\u4fc2\uff0c\u5716\u8868\u61c9\u7acb\u5373\u53cd\u6620\u6b64\u8b8a\u52d5\u3002\u5c0d\u65e9\u671f\u8349\u5716\u7684\u50f5\u5316\u9075\u5faa\u6703\u6291\u5236\u5275\u65b0\uff0c\u4e26\u4f7f\u672a\u4f86\u529f\u80fd\u6574\u5408\u8b8a\u5f97\u6975\u5176\u56f0\u96e3\u3002<\/p>\n

    2. \u66f4\u591a\u8cc7\u6599\u8868\u7e3d\u662f\u66f4\u5229\u65bc\u7d44\u7e54 \ud83d\uddc2\ufe0f<\/h2>\n

    \u65b0\u624b\u5e38\u6709\u904e\u5ea6\u898f\u7bc4\u5316\u7684\u50be\u5411\u3002\u5176\u908f\u8f2f\u662f\u70ba\u6bcf\u500b\u6982\u5ff5\u90fd\u5efa\u7acb\u5c08\u5c6c\u8cc7\u6599\u8868\uff0c\u5c31\u80fd\u4fdd\u6301\u8cc7\u6599\u5eab\u6574\u6f54\u3002\u7136\u800c\uff0c\u904e\u5ea6\u7684\u788e\u7247\u5316\u6703\u640d\u5bb3\u6548\u80fd\u8207\u67e5\u8a62\u8907\u96dc\u5ea6\u3002<\/p>\n

    \u5728\u6c7a\u5b9a\u662f\u5426\u5efa\u7acb\u65b0\u8cc7\u6599\u8868\u6642\uff0c\u8acb\u8003\u616e\u4ee5\u4e0b\u6b0a\u8861\uff1a<\/p>\n

      \n
    • \u67e5\u8a62\u8907\u96dc\u5ea6\uff1a<\/strong> \u6bcf\u500b\u65b0\u8cc7\u6599\u8868\u90fd\u6703\u5f15\u5165\u4e00\u6b21\u65b0\u7684\u9023\u63a5\uff08join\uff09\u3002\u904e\u591a\u7684\u9023\u63a5\u6703\u62d6\u6162\u8b80\u53d6\u64cd\u4f5c\u3002<\/li>\n
    • \u53ef\u7dad\u8b77\u6027\uff1a<\/strong> \u5305\u542b\u6578\u767e\u500b\u8cc7\u6599\u8868\u7684\u7d50\u69cb\u53ef\u80fd\u8b8a\u5f97\u96e3\u4ee5\u5c0e\u822a\u8207\u7406\u89e3\u3002<\/li>\n
    • \u5132\u5b58\u7a7a\u9593\u958b\u92b7\uff1a<\/strong> \u96d6\u7136\u5132\u5b58\u7a7a\u9593\u6210\u672c\u4f4e\u5ec9\uff0c\u4f46\u5728\u898f\u6a21\u64f4\u5927\u6642\uff0c\u7d22\u5f15\u958b\u92b7\u8207\u4ea4\u6613\u8a18\u9304\u589e\u9577\u53ef\u80fd\u6210\u70ba\u554f\u984c\u3002<\/li>\n<\/ul>\n

      \u76ee\u6a19\u4e0d\u662f\u6700\u5927\u5316\u8cc7\u6599\u8868\u6578\u91cf\uff0c\u800c\u662f\u6700\u5927\u5316\u8cc7\u6599\u5b8c\u6574\u6027\u8207\u5b58\u53d6\u6548\u7387\u3002\u6709\u6642\uff0c\u91dd\u5c0d\u8b80\u53d6\u5bc6\u96c6\u578b\u61c9\u7528\uff0c\u975e\u898f\u7bc4\u5316\u7d50\u69cb\u624d\u662f\u6b63\u78ba\u9078\u64c7\u3002\u6b64\u6c7a\u7b56\u53d6\u6c7a\u65bc\u61c9\u7528\u7a0b\u5f0f\u7684\u7279\u5b9a\u5b58\u53d6\u6a21\u5f0f\u3002<\/p>\n

      \u898f\u7bc4\u5316\u8207\u975e\u898f\u7bc4\u5316\u4e4b\u9593\u7684\u6b0a\u8861<\/h3>\n\n\n\n\n\n\n\n\n
      \u9762\u5411<\/th>\n\u898f\u7bc4\u5316<\/th>\n\u975e\u898f\u7bc4\u5316<\/th>\n<\/tr>\n<\/thead>\n
      \u8cc7\u6599\u5b8c\u6574\u6027<\/strong><\/td>\n\u9ad8<\/td>\n\u8f03\u4f4e\uff08\u9700\u61c9\u7528\u7a0b\u5f0f\u908f\u8f2f\u652f\u63f4\uff09<\/td>\n<\/tr>\n
      \u5beb\u5165\u6548\u80fd<\/strong><\/td>\n\u8f03\u6162\uff08\u66f4\u591a\u7d04\u675f\uff09<\/td>\n\u8f03\u5feb<\/td>\n<\/tr>\n
      \u8b80\u53d6\u6548\u80fd<\/strong><\/td>\n\u8f03\u6162\uff08\u66f4\u591a\u9023\u63a5\uff09<\/td>\n\u8f03\u5feb<\/td>\n<\/tr>\n
      \u4f7f\u7528\u6848\u4f8b<\/strong><\/td>\nOLTP\uff08\u4ea4\u6613\u7cfb\u7d71\uff09<\/td>\nOLAP\uff08\u5831\u8868\u8207\u5206\u6790\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      3. \u57fa\u6578\u662f\u53ef\u9078\u8cc7\u8a0a \ud83d\udcc9<\/h2>\n

      ERD \u5efa\u7acb\u904e\u7a0b\u4e2d\u6700\u5177\u6709\u7834\u58de\u6027\u7684\u932f\u8aa4\u4e4b\u4e00\u5c31\u662f\u5ffd\u7565\u57fa\u6578\u3002\u57fa\u6578\u5b9a\u7fa9\u4e86\u5169\u500b\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u6578\u91cf\uff08\u4f8b\u5982\uff1a\u4e00\u5c0d\u4e00\u3001\u4e00\u5c0d\u591a\uff09\u3002\u6709\u4e9b\u5de5\u7a0b\u5e2b\u53ea\u5c08\u6ce8\u65bc\u5c6c\u6027\uff0c\u537b\u907a\u5fd8\u4e86\u9023\u63a5\u95dc\u4fc2\u3002<\/p>\n

      \u82e5\u672a\u5b9a\u7fa9\u57fa\u6578\uff0c\u8cc7\u6599\u5eab\u5f15\u64ce\u5c07\u7121\u6cd5\u6709\u6548\u57f7\u884c\u8cc7\u6599\u898f\u5247\u3002\u9019\u6703\u5c0e\u81f4\u5b64\u7acb\u8a18\u9304\u548c\u4e0d\u4e00\u81f4\u7684\u72c0\u614b\u3002<\/p>\n

        \n
      • \u4e00\u5c0d\u4e00\uff081:1\uff09\uff1a<\/strong>\u8f03\u70ba\u7f55\u898b\uff0c\u4f46\u5c0d\u65bc\u5b89\u5168\u6027\u6216\u62c6\u5206\u5927\u578b\u8868\u683c\u5f88\u6709\u7528\u3002<\/li>\n
      • \u4e00\u5c0d\u591a\uff081:N\uff09\uff1a<\/strong> \u6700\u5e38\u898b\u7684\u95dc\u4fc2\uff08\u4f8b\u5982\uff1a\u4e00\u500b\u4f7f\u7528\u8005\u64c1\u6709\u8a31\u591a\u8a02\u55ae\uff09\u3002<\/li>\n
      • \u591a\u5c0d\u591a\uff08M:N\uff09\uff1a<\/strong> \u9700\u8981\u4e00\u500b\u4ea4\u96c6\u8868\u683c\u4f86\u89e3\u6c7a\uff08\u4f8b\u5982\uff1a\u5b78\u751f\u8207\u8ab2\u7a0b\uff09\u3002<\/li>\n<\/ul>\n

        \u7576\u60a8\u5b9a\u7fa9\u9019\u4e9b\u95dc\u4fc2\u6642\uff0c\u60a8\u4fbf\u5411\u5176\u4ed6\u958b\u767c\u4eba\u54e1\u50b3\u9054\u4e86\u610f\u5716\u3002\u5916\u9375\u7d04\u675f\u4e0d\u50c5\u662f\u6280\u8853\u9700\u6c42\uff0c\u66f4\u662f\u5c0d\u8cc7\u6599\u5982\u4f55\u76f8\u4e92\u95dc\u806f\u7684\u8a9e\u7fa9\u5ba3\u544a\u3002<\/p>\n

        4. \u547d\u540d\u6163\u4f8b\u4e26\u4e0d\u91cd\u8981 \ud83c\udff7\ufe0f<\/h2>\n

        \u4f7f\u7528\u50cf\u300ctbl_usr<\/code>\u300d\u6216\u300ccol_id_1<\/code>\u300d\u4e4b\u985e\u7684\u7c21\u77ed\u3001\u96e3\u61c2\u540d\u7a31\u4f86\u7bc0\u7701\u8f38\u5165\u6642\u9593\u3002\u7136\u800c\uff0c\u7a0b\u5f0f\u78bc\u8207\u8cc7\u6599\u7d50\u69cb\u540d\u7a31\u88ab\u95b1\u8b80\u7684\u6b21\u6578\u9060\u8d85\u904e\u64b0\u5beb\u6b21\u6578\u3002<\/p>\n

        \u6e05\u6670\u7684\u547d\u540d\u6163\u4f8b\u80fd\u964d\u4f4e\u8a8d\u77e5\u8ca0\u8377\u3002\u7576\u65b0\u958b\u767c\u4eba\u54e1\u52a0\u5165\u5718\u968a\u6642\uff0c\u4ed6\u5011\u61c9\u80fd\u5728\u6578\u5206\u9418\u5167\u7406\u89e3\u8cc7\u6599\u7d50\u69cb\u3002<\/p>\n

        \u6700\u4f73\u5be6\u52d9\u5305\u62ec\uff1a<\/p>\n

          \n
        • \u4e00\u81f4\u6027\uff1a<\/strong> \u5728\u6574\u500b\u5c08\u6848\u4e2d\u4f7f\u7528\u76f8\u540c\u7684\u98a8\u683c\uff08snake_case\u3001camelCase\uff09\u3002<\/li>\n
        • \u63cf\u8ff0\u6027\uff1a<\/strong> \u8868\u683c\u540d\u7a31\u61c9\u4ee3\u8868\u5be6\u9ad4\uff08\u4f8b\u5982\uff1a”\u4f7f\u7528\u8005<\/code>\uff0c\u800c\u4e0d\u662ft1<\/code>).<\/li>\n
        • \u8907\u6578\u5f62\u5f0f\uff1a<\/strong> \u4e00\u822c\u4f86\u8aaa\uff0c\u8cc7\u6599\u8868\u4ee3\u8868\u96c6\u5408\uff0c\u56e0\u6b64\u4f7f\u7528\u8907\u6578\u540d\u7a31\u901a\u5e38\u66f4\u6e05\u695a\uff08\u4f8b\u5982\uff0c\u8a02\u55ae<\/code>\u5c0d\u6bd4order<\/code>).<\/li>\n
        • \u907f\u514d\u4f7f\u7528\u4fdd\u7559\u5b57\uff1a<\/strong> \u4e0d\u8981\u4f7f\u7528\u50cfgroup<\/code>\u6216order<\/code>\u800c\u672a\u9032\u884c\u8f49\u7fa9\u3002<\/li>\n<\/ul>\n

          \u82b1\u6642\u9593\u5728\u547d\u540d\u898f\u7bc4\u4e0a\uff0c\u80fd\u5e36\u4f86\u56de\u5831\uff0c\u6e1b\u5c11\u9664\u932f\u6642\u9593\uff0c\u4e26\u5728\u7a0b\u5f0f\u78bc\u5be9\u67e5\u6642\u6e1b\u5c11\u8aa4\u89e3\u3002<\/p>\n

          5. \u5916\u9375\u6703\u5f71\u97ff\u6548\u80fd \u26a1<\/h2>\n

          \u4e00\u7a2e\u666e\u904d\u7684\u8ff7\u601d\u8a8d\u70ba\uff0c\u5916\u9375\u7d04\u675f\u6703\u70ba\u5beb\u5165\u64cd\u4f5c\u5e36\u4f86\u904e\u591a\u7684\u8ca0\u64d4\uff0c\u56e0\u6b64\u61c9\u8a72\u88ab\u79fb\u9664\uff0c\u6539\u7531\u61c9\u7528\u5c64\u9a57\u8b49\u53d6\u4ee3\u3002\u96d6\u7136\u7d04\u675f\u78ba\u5be6\u6703\u589e\u52a0\u8655\u7406\u6642\u9593\uff0c\u4f46\u8207\u8cc7\u6599\u640d\u58de\u7684\u98a8\u96aa\u76f8\u6bd4\uff0c\u5176\u6210\u672c\u901a\u5e38\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8a08\u3002<\/p>\n

          \u61c9\u7528\u5c64\u9a57\u8b49\u5bb9\u6613\u53d7\u5230\u7af6\u722d\u689d\u4ef6\u548c\u932f\u8aa4\u7684\u5f71\u97ff\u3002\u8cc7\u6599\u5eab\u7d04\u675f\u662f\u539f\u5b50\u6027\u7684\uff0c\u7531\u5f15\u64ce\u672c\u8eab\u5f37\u5236\u57f7\u884c\u3002<\/p>\n

            \n
          • \u5b8c\u6574\u6027\uff1a<\/strong>\u5916\u9375\u53ef\u81ea\u52d5\u9632\u6b62\u5b64\u7acb\u8cc7\u6599\u3002<\/li>\n
          • \u512a\u5316\uff1a<\/strong>\u73fe\u4ee3\u8cc7\u6599\u5eab\u5f15\u64ce\u6703\u6839\u64da\u9019\u4e9b\u95dc\u4fc2\u512a\u5316\u9023\u63a5\u64cd\u4f5c\u3002<\/li>\n
          • \u7d1a\u806f\uff1a<\/strong> CASCADE<\/code>\u522a\u9664\u64cd\u4f5c\u53ef\u5354\u52a9\u7ba1\u7406\u8907\u96dc\u7684\u95dc\u4fc2\uff0c\u800c\u7121\u9700\u624b\u52d5\u6e05\u7406\u7a0b\u5f0f\u78bc\u3002<\/li>\n<\/ul>\n

            \u50c5\u5728\u7279\u5b9a\u9ad8\u541e\u5410\u91cf\u7684\u5927\u898f\u6a21\u8f09\u5165\u60c5\u5883\u4e2d\u624d\u7981\u7528\u7d04\u675f\uff0c\u6b64\u6642\u6548\u80fd\u662f\u7d55\u5c0d\u7684\u74f6\u9838\uff0c\u4e14\u8cc7\u6599\u5b8c\u6574\u6027\u7531\u5916\u90e8\u7ba1\u7406\u3002\u5c0d\u65bc\u6a19\u6e96\u7684\u4ea4\u6613\u7cfb\u7d71\uff0c\u61c9\u4fdd\u6301\u555f\u7528\u3002<\/p>\n

            6. ERD \u8a2d\u8a08\u50c5\u5c6c\u65bc\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1 \ud83e\udd16<\/h2>\n

            \u8cc7\u6dfa\u5de5\u7a0b\u5e2b\u5e38\u8a8d\u70ba\u8cc7\u6599\u7d50\u69cb\u8a2d\u8a08\u662f\u5225\u4eba\u7684\u5de5\u4f5c\uff0c\u7279\u5225\u662f\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u3002\u9019\u6703\u5c0e\u81f4\u61c9\u7528\u908f\u8f2f\u8207\u8cc7\u6599\u5132\u5b58\u5c64\u4e4b\u9593\u7522\u751f\u812b\u7bc0\u3002<\/p>\n

            \u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4eba\u54e1\u5fc5\u9808\u4e86\u89e3\u8cc7\u6599\u6a21\u578b\uff0c\u56e0\u70ba\u4ed6\u5011\u64b0\u5beb\u8207\u8a72\u6a21\u578b\u4e92\u52d5\u7684\u67e5\u8a62\u3002\u5982\u679c\u7d50\u69cb\u4e0d\u7b26\u5408\u61c9\u7528\u7a0b\u5f0f\u908f\u8f2f\uff0c\u7a0b\u5f0f\u78bc\u5c07\u8b8a\u5f97\u6548\u7387\u4f4e\u4e0b\u4e14\u8106\u5f31\u3002<\/p>\n

              \n
            • \u5354\u4f5c\uff1a<\/strong>\u958b\u767c\u4eba\u54e1\u548c\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u61c9\u5728\u8a2d\u8a08\u968e\u6bb5\u65e9\u671f\u9032\u884c\u5354\u4f5c\u3002<\/li>\n
            • \u7a0b\u5f0f\u78bc\u7522\u751f\uff1a<\/strong>\u8a31\u591a ORM\uff08\u7269\u4ef6-\u95dc\u806f\u6620\u5c04\uff09\u9ad8\u5ea6\u4f9d\u8cf4 ERD \u4f86\u7522\u751f\u5132\u5b58\u5eab\u985e\u5225\u3002<\/li>\n
            • \u9664\u932f\uff1a<\/strong>\u4e86\u89e3\u95dc\u4fc2\u6709\u52a9\u65bc\u8a3a\u65b7\u57f7\u884c\u7de9\u6162\u7684\u67e5\u8a62\u8207\u8cc7\u6599\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002<\/li>\n<\/ul>\n

              \u8cc7\u6599\u6a21\u578b\u7684\u4e3b\u5c0e\u6b0a\u662f\u5171\u540c\u8cac\u4efb\u3002\u7121\u8ad6\u524d\u7aef\u904b\u4f5c\u5f97\u591a\u597d\uff0c\u82e5\u61c9\u7528\u7a0b\u5f0f\u7121\u6cd5\u6709\u6548\u5b58\u53d6\u8cc7\u6599\uff0c\u5c31\u662f\u5931\u6557\u7684\u61c9\u7528\u7a0b\u5f0f\u3002<\/p>\n

              7. \u4e00\u500b\u8cc7\u6599\u7d50\u69cb\u9069\u7528\u65bc\u6240\u6709\u4f7f\u7528\u60c5\u5883 \ud83d\udd04<\/h2>\n

              \u4e26\u6c92\u6709\u55ae\u4e00\u7684\u300c\u6700\u4f73\u300d\u8cc7\u6599\u5eab\u8a2d\u8a08\u65b9\u5f0f\u3002\u91dd\u5c0d\u793e\u7fa4\u5a92\u9ad4\u8cc7\u8a0a\u6d41\u512a\u5316\u7684\u7d50\u69cb\uff0c\u8207\u91dd\u5c0d\u8ca1\u52d9\u5e33\u518a\u8a2d\u8a08\u7684\u7d50\u69cb\u6703\u6709\u986f\u8457\u5dee\u7570\u3002<\/p>\n

              \u4e86\u89e3\u5b58\u53d6\u6a21\u5f0f\u6bd4\u9075\u5faa\u50f5\u5316\u7684\u7bc4\u672c\u66f4\u91cd\u8981\u3002<\/p>\n

                \n
              • \u8b80\u53d6\u5bc6\u96c6\uff1a<\/strong>\u512a\u5148\u8003\u616e\u53cd\u898f\u7bc4\u5316\u8207\u5feb\u53d6\u7b56\u7565\u3002<\/li>\n
              • \u5beb\u5165\u5bc6\u96c6\uff1a<\/strong>\u512a\u5148\u8003\u616e\u898f\u7bc4\u5316\u8207\u56b4\u683c\u7684\u5b8c\u6574\u6027\u7d04\u675f\u3002<\/li>\n
              • \u8907\u96dc\u67e5\u8a62\uff1a<\/strong> \u78ba\u4fdd\u5728\u7d93\u5e38\u4f7f\u7528\u65bc WHERE<\/code> \u5b50\u53e5\u4e2d\u7684\u6b04\u4f4d\u4e0a\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n<\/ul>\n

                \u6bcf\u500b\u7cfb\u7d71\u90fd\u6709\u7368\u7279\u7684\u9700\u6c42\u3002\u901a\u7528\u7684\u65b9\u6cd5\u901a\u5e38\u6703\u5c0e\u81f4\u4e00\u500b\u770b\u4f3c\u300c\u9084\u597d\u300d\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u4f46\u5728\u7279\u5b9a\u8ca0\u8f09\u689d\u4ef6\u4e0b\u6703\u5931\u6557\u3002\u5728\u6700\u7d42\u78ba\u5b9a\u7d50\u69cb\u524d\uff0c\u8acb\u5148\u5206\u6790\u60a8\u7684\u7279\u5b9a\u5de5\u4f5c\u8ca0\u8f09\u3002<\/p>\n

                8. \u5716\u793a\u5728\u7121\u5c6c\u6027\u7684\u60c5\u6cc1\u4e0b\u4ecd\u70ba\u5b8c\u6574 \ud83d\udcdd<\/h2>\n

                \u5e38\u898b\u7684\u73fe\u8c61\u662f\u770b\u5230\u50c5\u986f\u793a\u5be6\u9ad4\u8207\u95dc\u4fc2\uff0c\u537b\u7f3a\u4e4f\u8a73\u7d30\u5c6c\u6027\u5b9a\u7fa9\u7684\u5716\u793a\u3002\u5b8c\u6574\u7684 ERD \u5fc5\u9808\u660e\u78ba\u6307\u5b9a\u8cc7\u6599\u985e\u578b\u3001\u7d04\u675f\u689d\u4ef6\u8207\u9810\u8a2d\u503c\u3002<\/p>\n

                \u82e5\u7f3a\u4e4f\u6b64\u7b49\u7d30\u7bc0\uff0c\u5716\u793a\u50c5\u662f\u8349\u5716\uff0c\u7121\u6cd5\u7528\u4f86\u7522\u751f\u5be6\u969b\u7684\u8cc7\u6599\u5eab\u9077\u79fb\u6307\u4ee4\u78bc\u3002<\/p>\n

                \u5fc5\u9808\u5b9a\u7fa9\u7684\u95dc\u9375\u5c6c\u6027\u5305\u62ec\uff1a<\/p>\n

                  \n
                • \u8cc7\u6599\u985e\u578b\uff1a<\/strong> \u6574\u6578\u3001\u5b57\u4e32\u3001\u5e03\u6797\u503c\u3001\u6642\u9593\u6233\u8a18\u3002<\/li>\n
                • \u7d04\u675f\u689d\u4ef6\uff1a<\/strong> \u4e0d\u53ef\u70ba\u7a7a\u3001\u552f\u4e00\u3001\u9810\u8a2d\u503c\u3002<\/li>\n
                • \u9577\u5ea6\uff1a<\/strong> \u5b57\u4e32\u6b04\u4f4d\u7684\u5b57\u5143\u9650\u5236\u3002<\/li>\n
                • \u7d22\u5f15\uff1a<\/strong> \u54ea\u4e9b\u6b04\u4f4d\u9700\u8981\u641c\u5c0b\u512a\u5316\u3002<\/li>\n<\/ul>\n

                  \u7f3a\u5c11\u5c6c\u6027\u7d30\u7bc0\u901a\u5e38\u6703\u5728\u5be6\u4f5c\u968e\u6bb5\u5c0e\u81f4\u6a21\u7cca\u4e0d\u6e05\uff0c\u9032\u800c\u5f15\u767c\u81e8\u6642\u8b8a\u66f4\u8207\u6f5b\u5728\u932f\u8aa4\u3002<\/p>\n

                  9. \u4e3b\u9375\u5fc5\u9808\u70ba\u6574\u6578 \ud83d\udd22<\/h2>\n

                  \u96d6\u7136\u81ea\u52d5\u905e\u589e\u7684\u6574\u6578\u662f\u6700\u5e38\u898b\u7684\u4e3b\u9375\u7b56\u7565\uff0c\u4f46\u4e26\u975e\u552f\u4e00\u9078\u64c7\u3002\u5728\u5206\u6563\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6574\u6578\u9375\u53ef\u80fd\u6703\u5c0e\u81f4\u885d\u7a81\u3002<\/p>\n

                    \n
                  • UUID\uff1a<\/strong> \u5168\u57df\u552f\u4e00\u8b58\u5225\u78bc\u5c0d\u65bc\u5fae\u670d\u52d9\u67b6\u69cb\u975e\u5e38\u6709\u7528\u3002<\/li>\n
                  • \u8907\u5408\u9375\uff1a<\/strong> \u6709\u6642\uff0c\u6b04\u4f4d\u7684\u7d44\u5408\u624d\u662f\u771f\u6b63\u7684\u552f\u4e00\u8b58\u5225\u78bc\u3002<\/li>\n
                  • \u4ee3\u7406\u9375\u8207\u81ea\u7136\u9375\uff1a<\/strong> \u4ee3\u7406\u9375\uff08\u7522\u751f\u7684\uff09\u5c07\u8eab\u5206\u8b58\u5225\u8207\u5546\u696d\u908f\u8f2f\u5206\u96e2\u3002<\/li>\n<\/ul>\n

                    \u9078\u64c7\u6b63\u78ba\u7684\u9375\u985e\u578b\u6703\u5f71\u97ff\u7fa4\u96c6\u3001\u7d22\u5f15\u8207\u5916\u9375\u7684\u6548\u80fd\u3002\u6574\u6578\u5728\u9023\u63a5\u64cd\u4f5c\u4e0a\u901a\u5e38\u66f4\u5feb\uff0c\u4f46 UUID \u5728\u5206\u7247\u74b0\u5883\u4e2d\u80fd\u63d0\u4f9b\u66f4\u597d\u7684\u5206\u6563\u6548\u679c\u3002<\/p>\n

                    10. ERD \u8a2d\u8a08\u662f\u4e00\u6b21\u6027\u4efb\u52d9 \ud83d\udeab<\/h2>\n

                    \u8a2d\u8a08\u5b8c\u8cc7\u6599\u7d50\u69cb\u5f8c\u5c31\u4e0d\u518d\u7406\u6703\u662f\u4e00\u7a2e\u5371\u96aa\u7684\u505a\u6cd5\u3002\u7cfb\u7d71\u6703\u8b8a\u66f4\uff0c\u8cc7\u6599\u9700\u6c42\u4e5f\u6703\u6f14\u9032\u3002\u4e09\u5e74\u524d\u7684\u512a\u826f\u8a2d\u8a08\uff0c\u4eca\u5929\u53ef\u80fd\u53cd\u800c\u6210\u70ba\u8ca0\u64d4\u3002<\/p>\n

                      \n
                    • \u5b9a\u671f\u5be9\u67e5\uff1a<\/strong> \u5b9a\u671f\u5be9\u67e5\u8cc7\u6599\u7d50\u69cb\uff0c\u627e\u51fa\u672a\u4f7f\u7528\u7684\u8cc7\u6599\u8868\u6216\u6b04\u4f4d\u3002<\/li>\n
                    • \u7248\u672c\u63a7\u5236\uff1a<\/strong> \u5c07\u8cc7\u6599\u7d50\u69cb\u7684\u8b8a\u66f4\u8996\u70ba\u7a0b\u5f0f\u78bc\u3002\u4f7f\u7528\u9077\u79fb\u5de5\u5177\u4f86\u7ba1\u7406\u7248\u672c\u3002<\/li>\n
                    • \u53cd\u994b\u8ff4\u5708\uff1a<\/strong> \u8046\u807d\u61c9\u7528\u7a0b\u5f0f\u7684\u6548\u80fd\u8cc7\u6599\uff0c\u4ee5\u8b58\u5225\u7d50\u69cb\u4e0a\u7684\u74f6\u9838\u3002<\/li>\n<\/ul>\n

                      \u7dad\u8b77\u5065\u5eb7\u7684\u8cc7\u6599\u5eab\u9700\u8981\u6301\u7e8c\u95dc\u6ce8\u3002\u7b49\u5230\u6548\u80fd\u554f\u984c\u51fa\u73fe\u624d\u95dc\u6ce8\u8cc7\u6599\u7d50\u69cb\u7684\u5065\u5eb7\u72c0\u614b\uff0c\u662f\u4e00\u7a2e\u88ab\u52d5\u7b56\u7565\uff0c\u7d93\u5e38\u5c0e\u81f4\u7cfb\u7d71\u4e2d\u65b7\u3002<\/p>\n

                      11. \u8907\u96dc\u7684\u95dc\u4fc2\u6c38\u9060\u90fd\u662f\u58de\u7684 \ud83d\udeab<\/h2>\n

                      \u6709\u4e9b\u5de5\u7a0b\u5e2b\u5bb3\u6015\u8907\u96dc\u7684\u95dc\u4fc2\uff08\u4f8b\u5982\u905e\u8ff4\u95dc\u4fc2\u6216\u6df1\u5c64\u968e\u5c64\uff09\uff0c\u56e0\u800c\u904e\u5ea6\u7c21\u5316\u3002\u96d6\u7136\u7c21\u5316\u662f\u597d\u7684\uff0c\u4f46\u904e\u5ea6\u7c21\u5316\u53ef\u80fd\u7834\u58de\u5546\u696d\u908f\u8f2f\u3002<\/p>\n

                      \u8003\u616e\u7d44\u7e54\u67b6\u69cb\u7684\u5c64\u7d1a\u3002\u7d93\u7406\u7ba1\u7406\u591a\u540d\u54e1\u5de5\uff0c\u800c\u6bcf\u4f4d\u54e1\u5de5\u50c5\u7531\u4e00\u4f4d\u7d93\u7406\u7ba1\u7406\u3002\u9019\u662f\u4e00\u7a2e\u6a19\u6e96\u7684\u905e\u8ff4\u95dc\u4fc2\u3002\u8a66\u5716\u5c07\u5176\u6241\u5e73\u5316\u70ba\u55ae\u4e00\u8cc7\u6599\u8868\uff0c\u53ef\u80fd\u5c0e\u81f4\u7121\u6cd5\u9032\u884c\u5718\u968a\u7d50\u69cb\u7684\u5831\u8868\u5206\u6790\u3002<\/p>\n

                        \n
                      • \u905e\u8ff4\u8cc7\u6599\u8868\uff1a<\/strong> \u9069\u7528\u65bc\u5206\u985e\u3001\u8a55\u8ad6\u8207\u7d44\u7e54\u67b6\u69cb\u3002<\/li>\n
                      • \u9130\u63a5\u6e05\u55ae\uff1a<\/strong> \u7528\u65bc\u5132\u5b58\u6a39\u72c0\u7d50\u69cb\u7684\u5e38\u898b\u6a21\u5f0f\u3002<\/li>\n
                      • \u8def\u5f91\u679a\u8209\uff1a<\/strong> \u5132\u5b58\u5b8c\u6574\u8def\u5f91\uff0c\u4ee5\u5728\u7279\u5b9a\u8b80\u53d6\u60c5\u5883\u4e0b\u52a0\u5feb\u904d\u6b77\u901f\u5ea6\u3002<\/li>\n<\/ul>\n

                        \u5982\u679c\u8cc7\u6599\u6a21\u578b\u9700\u8981\u8907\u96dc\u6027\uff0c\u5c31\u4e0d\u5fc5\u5bb3\u6015\u3002\u5c08\u6ce8\u65bc\u78ba\u4fdd\u8907\u96dc\u6027\u6709\u826f\u597d\u6587\u4ef6\u8a18\u9304\uff0c\u4e26\u7531\u9069\u7576\u7684\u7d22\u5f15\u652f\u63f4\u3002<\/p>\n

                        12. \u8996\u5716\u53d6\u4ee3\u4e86\u5c0d\u8cc7\u6599\u8868\u7684\u9700\u6c42 \ud83d\udcca<\/h2>\n

                        \u6709\u4e9b\u4eba\u8a8d\u70ba\uff0c\u70ba\u6bcf\u500b\u8907\u96dc\u67e5\u8a62\u5efa\u7acb\u8996\u5716\uff0c\u5c31\u80fd\u6d88\u9664\u5c0d\u826f\u597d\u8a2d\u8a08\u7684\u5e95\u5c64\u8cc7\u6599\u8868\u7d50\u69cb\u7684\u9700\u6c42\u3002\u8996\u5716\u662f\u884d\u751f\u8cc7\u6599\uff0c\u800c\u975e\u5132\u5b58\u7a7a\u9593\u3002<\/p>\n

                        \u96d6\u7136\u8996\u5716\u5728\u5b89\u5168\u6027\u8207\u62bd\u8c61\u5c64\u9762\u8868\u73fe\u51fa\u8272\uff0c\u4f46\u7121\u6cd5\u53d6\u4ee3\u5e95\u5c64\u8cc7\u6599\u8868\u7684\u57fa\u672c\u6b63\u898f\u5316\u3002<\/p>\n

                          \n
                        • \u5132\u5b58\u7a7a\u9593\uff1a<\/strong>\u8996\u5716\u4e0d\u6703\u5132\u5b58\u8cc7\u6599\uff1b\u5b83\u5011\u53ea\u662f\u67e5\u8a62\u8cc7\u6599\u3002<\/li>\n
                        • \u6548\u80fd\uff1a<\/strong>\u5982\u679c\u5e95\u5c64\u8cc7\u6599\u8868\u672a\u7d93\u904e\u6700\u4f73\u5316\uff0c\u8907\u96dc\u7684\u8996\u5716\u53ef\u80fd\u6703\u904b\u884c\u7de9\u6162\u3002<\/li>\n
                        • \u7dad\u8b77\uff1a<\/strong>\u4f9d\u8cf4\u8996\u5716\u4f86\u8655\u7406\u696d\u52d9\u908f\u8f2f\u6703\u96b1\u85cf\u8cc7\u6599\u76f8\u4f9d\u6027\u3002<\/li>\n<\/ul>\n

                          \u4f7f\u7528\u8996\u5716\u4f86\u7c21\u5316\u5b58\u53d6\uff0c\u4f46\u5fc5\u9808\u78ba\u4fdd\u5e95\u5c64\u8cc7\u6599\u8868\u7a69\u5065\u4e14\u5df2\u6b63\u898f\u5316\u3002<\/p>\n

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