{"id":59,"date":"2026-04-06T14:14:22","date_gmt":"2026-04-06T14:14:22","guid":{"rendered":"https:\/\/www.we-notes.com\/tw\/er-diagrams-senior-developers-abstraction-implementation\/"},"modified":"2026-04-06T14:14:22","modified_gmt":"2026-04-06T14:14:22","slug":"er-diagrams-senior-developers-abstraction-implementation","status":"publish","type":"post","link":"https:\/\/www.we-notes.com\/tw\/er-diagrams-senior-developers-abstraction-implementation\/","title":{"rendered":"\u8cc7\u6df1\u958b\u767c\u4eba\u54e1\u7684ER\u5716\uff1a\u5728\u62bd\u8c61\u8207\u5be6\u4f5c\u73fe\u5be6\u4e4b\u9593\u53d6\u5f97\u5e73\u8861"},"content":{"rendered":"

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

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    \n
  • \u6982\u5ff5\u6a21\u578b\uff1a<\/strong> \u6b64\u5c64\u5c08\u6ce8\u65bc\u696d\u52d9\u5be6\u9ad4\u53ca\u5176\u95dc\u4fc2\uff0c\u4e0d\u6d89\u53ca\u6280\u8853\u7d30\u7bc0\u3002\u5b83\u56de\u7b54\u300c\u4ec0\u9ebc\u662f\u4f7f\u7528\u8005\uff1f\u300d\u548c\u300c\u4f7f\u7528\u8005\u5982\u4f55\u8207\u8a02\u55ae\u95dc\u806f\uff1f\u300d\u7b49\u554f\u984c\u3002\u6b64\u5c64\u8207\u6280\u8853\u7121\u95dc\u3002<\/li>\n
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    1. \u6982\u5ff5\u5efa\u6a21\uff1a\u696d\u52d9\u8a9e\u8a00<\/h3>\n

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    2. \u908f\u8f2f\u5efa\u6a21\uff1a\u4e92\u52d5\u898f\u5247<\/h3>\n

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    3. \u7269\u7406\u5efa\u6a21\uff1a\u5be6\u4f5c\u73fe\u5be6<\/h3>\n

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    \u4f55\u6642\u8a72\u53cd\u898f\u7bc4\u5316<\/h3>\n

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      \n
    • \u8b80\u53d6\u64cd\u4f5c\u660e\u986f\u591a\u65bc\u5beb\u5165\u64cd\u4f5c\u3002<\/li>\n
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      \u95dc\u4fc2\u662fER\u5716\u7684\u6838\u5fc3\u3002\u5b83\u5011\u5b9a\u7fa9\u4e86\u8cc7\u6599\u5be6\u9ad4\u4e4b\u9593\u7684\u4e92\u52d5\u65b9\u5f0f\u3002\u96d6\u7136\u4e00\u5c0d\u4e00\u548c\u4e00\u5c0d\u591a\u95dc\u4fc2\u5f88\u76f4\u63a5\uff0c\u4f46\u591a\u5c0d\u591a\u95dc\u4fc2\u901a\u5e38\u9700\u8981\u4ed4\u7d30\u8655\u7406\uff0c\u4ee5\u78ba\u4fdd\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n

      \u4e00\u5c0d\u4e00\u95dc\u4fc2<\/h3>\n

      \u9019\u5728\u5be6\u969b\u4e2d\u5f88\u5c11\u898b\uff0c\u4f46\u78ba\u5be6\u5b58\u5728\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u8005\u500b\u4eba\u6a94\u6848\u8207\u4f7f\u7528\u8005\u500b\u4eba\u6a94\u6848\u8a2d\u5b9a\u8868\u3002\u60a8\u53ef\u4ee5\u900f\u904e\u5728\u5176\u4e2d\u4e00\u500b\u8868\u683c\u4e2d\u653e\u7f6e\u5916\u9375\uff0c\u6216\u5c07\u8cc7\u6599\u62c6\u5206\u70ba\u5169\u500b\u8868\u683c\u4f86\u5be6\u73fe\u3002\u6b64\u6c7a\u5b9a\u53d6\u6c7a\u65bc\u5b58\u53d6\u6a21\u5f0f\u3002\u5982\u679c\u8a2d\u5b9a\u7d93\u5e38\u8207\u500b\u4eba\u6a94\u6848\u4e00\u8d77\u5b58\u53d6\uff0c\u5247\u5c07\u5b83\u5011\u4fdd\u6301\u5728\u4e00\u8d77\u3002\u5982\u679c\u5f88\u5c11\u5b58\u53d6\uff0c\u5247\u5c07\u5b83\u5011\u5206\u96e2\uff0c\u4ee5\u6e1b\u5c11\u4e3b\u8868\u683c\u7684\u5927\u5c0f\u3002<\/p>\n

      \u4e00\u5c0d\u591a\u95dc\u4fc2<\/h3>\n

      \u9019\u662f\u6700\u5e38\u898b\u7684\u6a21\u5f0f\u3002\u4e00\u7bc7\u6587\u7ae0\u6709\u591a\u500b\u8a55\u8ad6\u3002\u5916\u9375\u4f4d\u65bc\u300c\u591a\u300d\u7684\u4e00\u65b9\uff08\u8a55\u8ad6\uff09\u3002\u9019\u7a2e\u8a2d\u8a08\u5c0d\u65bc\u67e5\u8a62\u7279\u5b9a\u6587\u7ae0\u7684\u6240\u6709\u8a55\u8ad6\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n

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

      \u4e00\u500b\u4f7f\u7528\u8005\u53ef\u4ee5\u95dc\u6ce8\u591a\u500b\u4f7f\u7528\u8005\uff0c\u540c\u6642\u4e00\u500b\u4f7f\u7528\u8005\u4e5f\u53ef\u4ee5\u88ab\u591a\u500b\u4f7f\u7528\u8005\u95dc\u6ce8\u3002\u9019\u9700\u8981\u4e00\u500b\u4e2d\u9593\u7684\u95dc\u806f\u8868\u3002\u8a72\u8868\u901a\u5e38\u5305\u542b\u96d9\u65b9\u7684\u5916\u9375\uff0c\u4ee5\u53ca\u8207\u95dc\u4fc2\u76f8\u95dc\u7684\u4efb\u4f55\u5143\u6578\u64da\uff0c\u4f8b\u5982\u9023\u63a5\u5efa\u7acb\u7684\u6642\u9593\u6233\u3002<\/p>\n

        \n
      • \u4e0d\u8981\u8df3\u904e\u95dc\u806f\u8868\uff1a<\/strong> \u5b83\u8b93\u4f60\u80fd\u5920\u5c0d\u95dc\u4fc2\u5efa\u7acb\u7d22\u5f15\uff0c\u4e26\u9ad8\u6548\u67e5\u8a62\u3002<\/li>\n
      • \u8003\u616e\u4f7f\u7528\u8907\u5408\u9375\uff1a<\/strong> \u95dc\u806f\u8868\u7684\u4e3b\u9375\u53ef\u80fd\u662f\u5169\u500b\u5916\u9375\u7684\u7d44\u5408\u3002<\/li>\n
      • \u6ce8\u610f\u57fa\u6578\uff1a<\/strong> \u78ba\u4fdd\u4f60\u8655\u7406\u4e86\u95dc\u4fc2\u70ba\u53ef\u9078\u8207\u5fc5\u586b\u7684\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n

        \u6a21\u5f0f\u6f14\u9032\u8207\u9077\u79fb \ud83d\udd04<\/h2>\n

        \u6210\u70ba\u8cc7\u6df1\u958b\u767c\u8005\u6700\u56f0\u96e3\u7684\u90e8\u5206\u4e4b\u4e00\uff0c\u5c31\u662f\u610f\u8b58\u5230ER\u5716\u6c38\u9060\u4e0d\u6703\u771f\u6b63\u5b8c\u6210\u3002\u9700\u6c42\u6703\u8b8a\u52d5\uff0c\u5546\u696d\u908f\u8f2f\u6703\u8f49\u79fb\uff0c\u8cc7\u6599\u4e5f\u6703\u4e0d\u65b7\u589e\u9577\u3002\u4f60\u7684\u8cc7\u6599\u5eab\u6a21\u5f0f\u5fc5\u9808\u6301\u7e8c\u6f14\u9032\uff0c\u540c\u6642\u4e0d\u7834\u58de\u73fe\u6709\u7684\u529f\u80fd\u3002<\/p>\n

        \u6a21\u5f0f\u7248\u672c\u63a7\u5236<\/h3>\n

        \u6c38\u9060\u4e0d\u8981\u5047\u8a2d\u9077\u79fb\u53ea\u6703\u767c\u751f\u4e00\u6b21\u3002\u5c07\u4f60\u7684\u6a21\u5f0f\u8996\u70ba\u7a0b\u5f0f\u78bc\u3002\u5c0d\u9077\u79fb\u8173\u672c\u4f7f\u7528\u7248\u672c\u63a7\u5236\u3002\u9019\u6a23\u7576\u65b0\u589e\u6b04\u4f4d\u5c0e\u81f4\u554f\u984c\u6642\uff0c\u4f60\u53ef\u4ee5\u56de\u6efe\u8b8a\u66f4\u3002\u540c\u6642\u4e5f\u80fd\u63d0\u4f9b\u8cc7\u6599\u7d50\u69cb\u96a8\u6642\u9593\u8b8a\u5316\u7684\u5be9\u8a08\u8ffd\u8e64\u3002<\/p>\n

        \u96f6\u505c\u6a5f\u9077\u79fb<\/h3>\n

        \u5c0d\u65bc\u751f\u7522\u7cfb\u7d71\uff0c\u505c\u6a5f\u901a\u5e38\u7121\u6cd5\u63a5\u53d7\u3002\u9019\u9700\u8981\u63a1\u7528\u5206\u968e\u6bb5\u7684\u65b9\u5f0f\u9032\u884c\u6a21\u5f0f\u8b8a\u66f4\uff1a<\/p>\n

          \n
        • \u9996\u5148\u65b0\u589e\u6b04\u4f4d\uff1a<\/strong> \u5c07\u65b0\u6b04\u4f4d\u8a2d\u70ba\u53ef\u70ba\u7a7a\u3002\u90e8\u7f72\u5beb\u5165\u8a72\u6b04\u4f4d\u7684\u7a0b\u5f0f\u78bc\u3002<\/li>\n
        • \u88dc\u586b\u8cc7\u6599\uff1a<\/strong> \u57f7\u884c\u80cc\u666f\u4f5c\u696d\u4f86\u586b\u5165\u65b0\u6b04\u4f4d\u7684\u8cc7\u6599\u3002<\/li>\n
        • \u5207\u63db\u8b80\u53d6\uff1a<\/strong> \u66f4\u65b0\u61c9\u7528\u7a0b\u5f0f\uff0c\u4f7f\u5176\u5f9e\u65b0\u6b04\u4f4d\u8b80\u53d6\u8cc7\u6599\u3002<\/li>\n
        • \u79fb\u9664\u820a\u6b04\u4f4d\uff1a<\/strong> \u7cfb\u7d71\u7a69\u5b9a\u5f8c\uff0c\u522a\u9664\u820a\u7684\u6b04\u4f4d\u3002<\/li>\n<\/ul>\n

          \u8655\u7406\u9396\u5b9a<\/h3>\n

          \u5728\u5927\u578b\u8868\u683c\u4e0a\u65b0\u589e\u7d22\u5f15\u6216\u7d04\u675f\u53ef\u80fd\u6703\u9396\u5b9a\u8868\u683c\uff0c\u5c0e\u81f4\u5beb\u5165\u4e2d\u65b7\u3002\u4f60\u5fc5\u9808\u4f7f\u7528\u7dda\u4e0a\u6a21\u5f0f\u8b8a\u66f4\u5de5\u5177\u6216\u5206\u5340\u7b56\u7565\u4f86\u6700\u5c0f\u5316\u9396\u5b9a\u6642\u9593\u3002\u5728\u6b64\u60c5\u6cc1\u4e0b\uff0c\u7406\u89e3\u5e95\u5c64\u8cc7\u6599\u5eab\u5f15\u64ce\u7684\u9396\u5b9a\u6a5f\u5236\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

          \u751f\u7522\u74b0\u5883\u4e2d\u7684\u5e38\u898b\u9677\u9631 \ud83d\udea7<\/h2>\n

          \u5373\u4f7f\u7d93\u9a57\u8c50\u5bcc\u7684\u958b\u767c\u8005\u5728\u5c07ER\u5716\u8f49\u63db\u70baSQL\u6642\u4e5f\u6703\u72af\u932f\u3002\u4e86\u89e3\u5e38\u898b\u9677\u9631\u80fd\u5e6b\u52a9\u4f60\u5728\u554f\u984c\u8b8a\u5f97\u56b4\u91cd\u4e4b\u524d\u907f\u514d\u5b83\u5011\u3002<\/p>\n

            \n
          • \u786c\u7de8\u78bc\u503c\uff1a<\/strong> \u907f\u514d\u5728\u6c92\u6709\u660e\u78ba\u7d04\u675f\u7684\u60c5\u6cc1\u4e0b\u4f7f\u7528 `INT` \u6b04\u4f4d\u4f86\u5132\u5b58\u5e03\u6797\u65d7\u6a19\uff080\/1\uff09\u3002\u5728\u652f\u63f4\u7684\u60c5\u6cc1\u4e0b\uff0c\u61c9\u4f7f\u7528 `BOOLEAN` \u985e\u578b\u6216\u679a\u8209\u985e\u578b\u3002<\/li>\n
          • \u7f3a\u5c11\u7d04\u675f\uff1a<\/strong>\u50c5\u4f9d\u8cf4\u61c9\u7528\u7a0b\u5f0f\u908f\u8f2f\u4f86\u5f37\u5236\u57f7\u884c\u5916\u9375\u662f\u5177\u6709\u98a8\u96aa\u7684\u3002\u5982\u679c\u51fa\u73fe\u932f\u8aa4\u5c0e\u81f4\u7121\u6548\u7684\u63d2\u5165\uff0c\u8cc7\u6599\u5c31\u6703\u906d\u5230\u7834\u58de\u3002\u61c9\u5728\u8cc7\u6599\u5eab\u5c64\u7d1a\u5f37\u5236\u57f7\u884c\u7d04\u675f\u3002<\/li>\n
          • \u904e\u5ea6\u4f7f\u7528 VARCHAR\uff1a<\/strong>\u96d6\u7136\u5177\u6709\u5f48\u6027\uff0c\u4f46 `VARCHAR` \u5728\u67d0\u4e9b\u8cc7\u6599\u4e0a\u53ef\u80fd\u6bd4 `CHAR` \u7b49\u56fa\u5b9a\u9577\u5ea6\u985e\u578b\u66f4\u6162\u3002\u5c0d\u65bc UUID \u6216\u90f5\u905e\u5340\u865f\u7b49\u56fa\u5b9a\u9577\u5ea6\u8cc7\u6599\uff0c\u61c9\u4f7f\u7528 `CHAR`\u3002<\/li>\n
          • \u5ffd\u7565\u5b57\u5143\u96c6\uff1a<\/strong> \u5982\u679c\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u652f\u63f4\u570b\u969b\u5b57\u5143\uff0c\u8acb\u78ba\u4fdd\u8cc7\u6599\u5eab\u548c\u8cc7\u6599\u8868\u5f9e\u4e00\u958b\u59cb\u5c31\u8a2d\u5b9a\u70ba\u652f\u63f4 UTF-8\u3002\u5f8c\u7e8c\u66f4\u6539\u5c07\u975e\u5e38\u56f0\u96e3\u3002<\/li>\n
          • \u96b1\u5f0f\u9023\u63a5\uff1a<\/strong> \u907f\u514d\u4f7f\u7528\u672a\u660e\u78ba\u7d22\u5f15\u7684\u8868\u683c\u9023\u63a5\u67e5\u8a62\u3002\u59cb\u7d42\u5be9\u67e5\u67e5\u8a62\u57f7\u884c\u8a08\u756b\u3002<\/li>\n<\/ul>\n

            \u8de8\u5718\u968a\u6e9d\u901a \ud83e\udd1d<\/h2>\n

            ER \u5716\u662f\u6e9d\u901a\u5de5\u5177\u3002\u5b83\u5f4c\u88dc\u4e86\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u3001\u5f8c\u7aef\u958b\u767c\u4eba\u54e1\u3001\u524d\u7aef\u958b\u767c\u4eba\u54e1\u8207\u7522\u54c1\u7d93\u7406\u4e4b\u9593\u7684\u5dee\u8ddd\u3002\u6e05\u6670\u7684\u5716\u8868\u53ef\u907f\u514d\u932f\u8aa4\u5047\u8a2d\u3002<\/p>\n

              \n
            • \u5c0d\u7522\u54c1\u7d93\u7406\u800c\u8a00\uff1a<\/strong> \u6709\u52a9\u65bc\u4ed6\u5011\u7406\u89e3\u529f\u80fd\u9700\u6c42\u7684\u8cc7\u6599\u9700\u6c42\u3002<\/li>\n
            • \u5c0d\u524d\u7aef\u958b\u767c\u4eba\u54e1\u800c\u8a00\uff1a<\/strong> \u53ef\u660e\u78ba\u4ed6\u5011\u5c07\u5f9e API \u63a5\u6536\u7684\u8cc7\u6599\u7d50\u69cb\u3002<\/li>\n
            • \u5c0d DevOps \u5c08\u54e1\u800c\u8a00\uff1a<\/strong> \u53ef\u63d0\u4f9b\u5bb9\u91cf\u898f\u5283\u8207\u5099\u4efd\u7b56\u7565\u7684\u8cc7\u8a0a\u3002<\/li>\n<\/ul>\n

              \u5982\u679c\u5716\u8868\u4e0d\u6e05\u6670\uff0c\u5718\u968a\u5c07\u731c\u6e2c\u3002\u731c\u6e2c\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u8cc7\u6df1\u958b\u767c\u4eba\u54e1\u6703\u78ba\u4fdd\u5716\u8868\u6e96\u78ba\u3001\u5373\u6642\u66f4\u65b0\uff0c\u4e26\u8b93\u5c08\u6848\u751f\u547d\u9031\u671f\u4e2d\u6240\u6709\u53c3\u8207\u8005\u90fd\u80fd\u5b58\u53d6\u3002<\/p>\n

              \u5de5\u5177 vs. \u601d\u8003 \ud83d\udca1<\/h2>\n

              \u6709\u8a31\u591a\u5de5\u5177\u53ef\u7528\u65bc\u7e6a\u88fd ER \u5716\u3002\u96d6\u7136\u5b83\u5011\u5c0d\u8996\u89ba\u5316\u5f88\u6709\u5e6b\u52a9\uff0c\u4f46\u4e0d\u61c9\u53d6\u4ee3\u6279\u5224\u6027\u601d\u8003\u3002\u5de5\u5177\u53ef\u4ee5\u5f9e\u5716\u8868\u751f\u6210 SQL\uff0c\u4f46\u7121\u6cd5\u7406\u89e3\u95dc\u4fc2\u5b58\u5728\u7684\u80cc\u5f8c\u5546\u696d\u908f\u8f2f\u3002<\/p>\n

                \n
              • \u5c08\u6ce8\u65bc\u908f\u8f2f\uff1a<\/strong> \u82b1\u66f4\u591a\u6642\u9593\u5728\u767d\u677f\u6216\u6587\u5b57\u7de8\u8f2f\u5668\u4e2d\u8a0e\u8ad6\u6a21\u578b\uff0c\u800c\u4e0d\u662f\u5728\u7e6a\u5716\u5de5\u5177\u4e2d\u9ede\u6309\u6309\u9215\u3002<\/li>\n
              • \u4ee5 SQL \u9a57\u8b49\uff1a<\/strong> \u756b\u5b8c\u5716\u8868\u5f8c\uff0c\u64b0\u5beb SQL\u3002\u5982\u679c SQL \u6a21\u7cca\u4e0d\u6e05\uff0c\u5716\u8868\u5f88\u53ef\u80fd\u6709\u554f\u984c\u3002<\/li>\n
              • \u4fdd\u6301\u7c21\u55ae\uff1a<\/strong> \u4e0d\u8981\u904e\u5ea6\u8a2d\u8a08\u5716\u8868\u3002\u5982\u679c\u95dc\u4fc2\u53ef\u4ee5\u63a8\u65b7\u51fa\u4f86\uff0c\u5c31\u4e0d\u5fc5\u5f37\u884c\u5efa\u7acb\u8907\u96dc\u7d50\u69cb\u3002<\/li>\n<\/ul>\n

                \u8cc7\u6599\u6a21\u578b\u8a2d\u8a08\u7684\u6700\u5f8c\u60f3\u6cd5 \ud83c\udfc1<\/h2>\n

                \u5efa\u7acb\u7a69\u5065\u7684\u8cc7\u6599\u5c64\u662f\u7406\u8ad6\u8207\u5be6\u52d9\u7684\u5e73\u8861\u3002ER \u5716\u4e0d\u50c5\u50c5\u662f\u4e00\u5f35\u5716\uff1b\u5b83\u662f\u4f60\u7684\u61c9\u7528\u7a0b\u5f0f\u8207\u8cc7\u6599\u4e4b\u9593\u7684\u5408\u7d04\u3002\u7576\u4f60\u5c0a\u91cd\u62bd\u8c61\u5c64\u3001\u7406\u89e3\u6b63\u898f\u5316\u8207\u6548\u80fd\u4e4b\u9593\u7684\u6b0a\u8861\uff0c\u4e26\u5f9e\u7b2c\u4e00\u5929\u5c31\u898f\u5283\u7cfb\u7d71\u7684\u6f14\u9032\uff0c\u4f60\u5c31\u80fd\u6253\u9020\u51fa\u5177\u97cc\u6027\u8207\u53ef\u64f4\u5c55\u6027\u7684\u7cfb\u7d71\u3002<\/p>\n

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