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\n
\"Hand-drawn<\/figure>\n<\/div>\n

\ud83e\udde9 \u53ef\u6269\u5c55ERD\u7684\u6838\u5fc3\u7ed3\u6784<\/h2>\n

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    \n
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      \n
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      \u2696\ufe0f \u89c4\u8303\u5316\u4e0e\u6027\u80fd\u7684\u6743\u8861<\/h2>\n

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        \n
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      • \u7b2c\u4e8c\u8303\u5f0f\uff082NF\uff09\uff1a<\/strong> \u65e0\u90e8\u5206\u4f9d\u8d56\u3002\u6240\u6709\u975e\u952e\u5c5e\u6027\u5fc5\u987b\u4f9d\u8d56\u4e8e\u6574\u4e2a\u4e3b\u952e\u3002\u6709\u52a9\u4e8e\u51cf\u5c11\u66f4\u65b0\u5f02\u5e38\u3002<\/li>\n
      • \u7b2c\u4e09\u8303\u5f0f\uff083NF\uff09\uff1a<\/strong> \u65e0\u4f20\u9012\u4f9d\u8d56\u3002\u975e\u952e\u5c5e\u6027\u4e0d\u80fd\u4f9d\u8d56\u4e8e\u5176\u4ed6\u975e\u952e\u5c5e\u6027\u3002\u8fd9\u662f\u5927\u591a\u6570\u4e8b\u52a1\u6027\u7cfb\u7edf\u7684\u6807\u51c6\u76ee\u6807\u3002<\/li>\n<\/ul>\n

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        \ud83d\udcca \u89c4\u8303\u5316\u4e0e\u53bb\u89c4\u8303\u5316\u7684\u5bf9\u6bd4<\/h3>\n\n\n\n\n\n\n\n\n\n
        \u529f\u80fd<\/th>\n\u89c4\u8303\u5316\uff08\u7b2c\u4e09\u8303\u5f0f\uff09<\/th>\n\u975e\u89c4\u8303\u5316<\/th>\n<\/tr>\n<\/thead>\n
        \u6570\u636e\u5b8c\u6574\u6027<\/strong><\/td>\n\u9ad8\uff08\u5355\u4e00\u771f\u5b9e\u6765\u6e90\uff09<\/td>\n\u8f83\u4f4e\uff08\u9700\u8981\u540c\u6b65\u903b\u8f91\uff09<\/td>\n<\/tr>\n
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        \ud83d\ude80 \u9762\u5411\u6c34\u5e73\u6269\u5c55\u7684\u8bbe\u8ba1<\/h2>\n

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          \n
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          \u5728\u8bbe\u8ba1\u5206\u7247\u65f6\uff0c\u9700\u8003\u8651\u6570\u636e\u7684\u5206\u5e03\u60c5\u51b5\u3002\u5f53\u67d0\u4e2a\u5206\u7247\u63a5\u6536\u7684\u6d41\u91cf\u660e\u663e\u591a\u4e8e\u5176\u4ed6\u5206\u7247\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u70ed\u70b9\u3002\u5e94\u5206\u6790\u8bbf\u95ee\u6a21\u5f0f\uff0c\u786e\u4fdd\u5206\u7247\u952e\u4e0e\u6700\u9891\u7e41\u7684\u67e5\u8be2\u8fc7\u6ee4\u6761\u4ef6\u76f8\u5339\u914d\u3002<\/p>\n

          \ud83d\udcd1 \u5927\u6570\u636e\u96c6\u7684\u7d22\u5f15\u7b56\u7565<\/h2>\n

          \u7d22\u5f15\u5bf9\u4e8e\u67e5\u8be2\u6027\u80fd\u81f3\u5173\u91cd\u8981\uff0c\u4f46\u5b83\u4eec\u4e5f\u4f34\u968f\u7740\u4ee3\u4ef7\u3002\u6bcf\u4e2a\u7d22\u5f15\u90fd\u4f1a\u6d88\u8017\u5b58\u50a8\u7a7a\u95f4\u5e76\u51cf\u6162\u5199\u5165\u64cd\u4f5c\u3002\u5236\u5b9a\u7d22\u5f15\u7684\u7b56\u7565\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

            \n
          • \u9009\u62e9\u6027\u7d22\u5f15\uff1a<\/strong> \u5728\u663e\u8457\u8fc7\u6ee4\u6570\u636e\u7684\u5217\u4e0a\u521b\u5efa\u7d22\u5f15\u3002\u4f4e\u57fa\u6570\u5217\uff08\u4f8b\u5982\u6027\u522b\uff09\u901a\u5e38\u4e0d\u9002\u5408\u4f5c\u4e3a\u4e3b\u7d22\u5f15\u7684\u5019\u9009\u3002<\/li>\n
          • \u590d\u5408\u7d22\u5f15\uff1a<\/strong> \u6309\u7167\u5339\u914d\u67e5\u8be2\u6a21\u5f0f\u7684\u987a\u5e8f\u7ec4\u5408\u591a\u4e2a\u5217\u3002\u5de6\u524d\u7f00\u89c4\u5219\u9002\u7528\uff0c\u8fd9\u610f\u5473\u7740\u7d22\u5f15\u4e2d\u7684\u7b2c\u4e00\u5217\u5fc5\u987b\u4e0e\u67e5\u8be2\u5339\u914d\uff0c\u7d22\u5f15\u624d\u80fd\u88ab\u6709\u6548\u4f7f\u7528\u3002<\/li>\n
          • \u8986\u76d6\u7d22\u5f15\uff1a<\/strong> \u5c06\u67e5\u8be2\u6240\u9700\u7684\u6240\u6709\u5217\u90fd\u5305\u542b\u5728\u7d22\u5f15\u4e2d\u3002\u8fd9\u6837\u6570\u636e\u5e93\u53ef\u4ee5\u5728\u4e0d\u8bbf\u95ee\u8868\u6570\u636e\u7684\u60c5\u51b5\u4e0b\u6ee1\u8db3\u67e5\u8be2\uff0c\u8fd9\u79cd\u64cd\u4f5c\u79f0\u4e3a\u201c\u8986\u76d6\u201d\u64cd\u4f5c\u3002<\/li>\n
          • \u90e8\u5206\u7d22\u5f15\uff1a<\/strong> \u4ec5\u5bf9\u8868\u4e2d\u7684\u4e00\u5c0f\u90e8\u5206\u884c\u521b\u5efa\u7d22\u5f15\u3002\u8fd9\u5728\u8f6f\u5220\u9664\u6216\u7279\u5b9a\u72b6\u6001\u6807\u5fd7\u65f6\u975e\u5e38\u6709\u7528\uff0c\u53ef\u51cf\u5c0f\u7d22\u5f15\u7ed3\u6784\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n

            \u5b9a\u671f\u5ba1\u67e5\u67e5\u8be2\u6267\u884c\u8ba1\u5212\u3002\u5982\u679c\u7edf\u8ba1\u4fe1\u606f\u8fc7\u65f6\uff0c\u5373\u4f7f\u7d22\u5f15\u5728\u7406\u8bba\u4e0a\u770b\u8d77\u6765\u5f88\u597d\uff0c\u4e5f\u53ef\u80fd\u88ab\u67e5\u8be2\u4f18\u5316\u5668\u5ffd\u7565\u3002\u5b9a\u671f\u7ef4\u62a4\u53ef\u786e\u4fdd\u6570\u636e\u5e93\u5f15\u64ce\u505a\u51fa\u6700\u4f18\u51b3\u7b56\u3002<\/p>\n

            \ud83d\udd04 \u6f14\u8fdb\u4e0e\u6a21\u5f0f\u8fc1\u79fb<\/h2>\n

            \u7cfb\u7edf\u5e76\u975e\u9759\u6001\u7684\u3002\u9700\u6c42\u4f1a\u53d8\u5316\uff0c\u6570\u636e\u6a21\u578b\u4e5f\u5fc5\u987b\u968f\u4e4b\u6f14\u8fdb\u3002\u5728\u4e0d\u4e2d\u65ad\u670d\u52a1\u7684\u60c5\u51b5\u4e0b\u4ece\u7248\u672cA\u8fc1\u79fb\u5230\u7248\u672cB\u662f\u4e00\u9879\u5173\u952e\u6280\u80fd\u3002<\/p>\n

              \n
            • \u589e\u91cf\u53d8\u66f4\uff1a<\/strong> \u6dfb\u52a0\u5217\u6216\u8868\u901a\u5e38\u5f88\u5b89\u5168\uff0c\u4e0d\u4f1a\u7834\u574f\u73b0\u6709\u67e5\u8be2\u3002\u8fd9\u662f\u5f15\u5165\u65b0\u529f\u80fd\u7684\u9996\u9009\u65b9\u6cd5\u3002<\/li>\n
            • \u91cd\u547d\u540d\u64cd\u4f5c\uff1a<\/strong> \u91cd\u547d\u540d\u5217\u5b58\u5728\u98ce\u9669\uff0c\u9700\u8981\u66f4\u65b0\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u3002\u5e94\u89c4\u5212\u4e00\u4e2a\u5f03\u7528\u671f\uff0c\u5728\u6b64\u671f\u95f4\u540c\u65f6\u652f\u6301\u65e7\u540d\u79f0\u548c\u65b0\u540d\u79f0\u3002<\/li>\n
            • \u7ea6\u675f\u6dfb\u52a0\uff1a<\/strong> \u5982\u679c\u5df2\u6709\u6570\u636e\uff0c\u5411\u73b0\u6709\u6570\u636e\u6dfb\u52a0\u7ea6\u675f\uff08\u5982 NOT NULL\uff09\u53ef\u80fd\u4f1a\u5931\u8d25\u3002\u5e94\u5148\u9a8c\u8bc1\u6570\u636e\uff0c\u518d\u5728\u5355\u72ec\u6b65\u9aa4\u4e2d\u6dfb\u52a0\u7ea6\u675f\u3002<\/li>\n
            • \u5411\u540e\u517c\u5bb9\u6027\uff1a<\/strong> \u786e\u4fdd\u65b0\u7248\u672c\u6a21\u5f0f\u4e0d\u4f1a\u7834\u574f\u73b0\u6709\u5ba2\u6237\u7aef\u3002\u4f7f\u7528\u529f\u80fd\u6807\u5fd7\uff0c\u4ec5\u5728\u6a21\u5f0f\u51c6\u5907\u5c31\u7eea\u65f6\u624d\u542f\u7528\u65b0\u903b\u8f91\u3002<\/li>\n<\/ul>\n

              \ud83d\udeab \u5e94\u907f\u514d\u7684\u5e38\u89c1\u9677\u9631<\/h2>\n

              \u5373\u4f7f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u8bbe\u8ba1\u5e08\u4e5f\u4f1a\u9047\u5230\u95ee\u9898\u3002\u53ca\u65e9\u8bc6\u522b\u8fd9\u4e9b\u6a21\u5f0f\u53ef\u4ee5\u8282\u7701\u5927\u91cf\u5de5\u7a0b\u65f6\u95f4\u3002<\/p>\n

                \n
              • \u7d27\u8026\u5408\uff1a<\/strong> \u521b\u5efa\u5f3a\u5236\u65e0\u5173\u5b9e\u4f53\u4e4b\u95f4\u4e25\u683c\u540c\u6b65\u7684\u5173\u7cfb\u3002\u4fdd\u6301\u6a21\u5757\u677e\u8026\u5408\uff0c\u4ee5\u652f\u6301\u72ec\u7acb\u90e8\u7f72\u3002<\/li>\n
              • \u8fc7\u5ea6\u8bbe\u8ba1\uff1a<\/strong> \u4e3a\u53ef\u80fd\u6c38\u8fdc\u4e0d\u4f1a\u53d1\u751f\u7684\u573a\u666f\u8fdb\u884c\u8bbe\u8ba1\u3002\u4e13\u6ce8\u4e8e\u9a71\u52a890%\u6d41\u91cf\u768480%\u4f7f\u7528\u573a\u666f\u3002\u7b80\u5355\u6027\u6709\u52a9\u4e8e\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n
              • \u5ffd\u89c6\u8f6f\u5220\u9664\uff1a<\/strong> \u786c\u5220\u9664\u4f1a\u6c38\u4e45\u79fb\u9664\u6570\u636e\u3002\u4e3a\u4e86\u5ba1\u8ba1\u8ffd\u8e2a\u6216\u6062\u590d\uff0c\u5e94\u4f7f\u7528\u72b6\u6001\u6807\u5fd7\uff08\u4f8b\u5982 is_deleted\uff09\u800c\u975e\u7269\u7406\u5220\u9664\u3002<\/li>\n
              • N+1 \u67e5\u8be2\u95ee\u9898\uff1a<\/strong> \u672a\u80fd\u9884\u89c1\u5230\u6570\u636e\u5c06\u5982\u4f55\u88ab\u83b7\u53d6\u3002\u5e94\u5728\u6570\u636e\u8bbf\u95ee\u5c42\u89c4\u5212\u9884\u52a0\u8f7d\u6216\u6279\u91cf\u83b7\u53d6\uff0c\u4ee5\u907f\u514d\u8fc7\u591a\u7684\u6570\u636e\u5e93\u5f80\u8fd4\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n

                \u2705 \u90e8\u7f72\u524d\u8bbe\u8ba1\u68c0\u67e5\u6e05\u5355<\/h2>\n

                \u5728\u6700\u7ec8\u786e\u5b9a\u6a21\u5f0f\u4e4b\u524d\uff0c\u8bf7\u5b8c\u6210\u6b64\u9a8c\u8bc1\u6e05\u5355\uff0c\u4ee5\u786e\u4fdd\u5177\u5907\u6269\u5c55\u80fd\u529b\u3002<\/p>\n

                  \n
                • \u2610 \u4e3b\u952e\uff1a<\/strong>\u6240\u6709\u8868\u662f\u5426\u90fd\u914d\u5907\u4e86\u552f\u4e00\u4e14\u5df2\u7d22\u5f15\u7684\u4e3b\u952e\uff1f<\/li>\n
                • \u2610 \u5916\u952e\uff1a<\/strong>\u5173\u7cfb\u662f\u5426\u6b63\u786e\u5b9a\u4e49\uff1f\u57fa\u6570\u662f\u5426\u51c6\u786e\uff1f<\/li>\n
                • \u2610 \u6570\u636e\u7c7b\u578b\uff1a<\/strong>ID\u548c\u91d1\u989d\u662f\u5426\u4f7f\u7528\u4e86\u6570\u503c\u7c7b\u578b\uff1f\u65e5\u671f\u7c7b\u578b\u662f\u5426\u6807\u51c6\u5316\uff1f<\/li>\n
                • \u2610 \u53ef\u7a7a\u6027\uff1a<\/strong>\u5fc5\u586b\u5b57\u6bb5\u662f\u5426\u5df2\u6807\u8bb0\u4e3a NOT NULL\uff1f<\/li>\n
                • \u2610 \u7d22\u5f15\uff1a<\/strong>\u9ad8\u6d41\u91cf\u67e5\u8be2\u5217\u662f\u5426\u5df2\u5efa\u7acb\u7d22\u5f15\uff1f<\/li>\n
                • \u2610 \u5206\u7247\uff1a<\/strong>\u5982\u679c\u9884\u8ba1\u9700\u8981\u6c34\u5e73\u6269\u5c55\uff0c\u662f\u5426\u5b58\u5728\u53ef\u884c\u7684\u5206\u7247\u952e\uff1f<\/li>\n
                • \u2610 \u7ea6\u675f\uff1a<\/strong>\u7ea6\u675f\u5bf9\u4e8e\u4e1a\u52a1\u903b\u8f91\u662f\u5426\u5fc5\u8981\uff0c\u8fd8\u662f\u53ef\u4ee5\u5728\u5e94\u7528\u5c42\u5904\u7406\uff1f<\/li>\n
                • \u2610 \u6587\u6863\uff1a<\/strong>ERD\u662f\u5426\u5df2\u66f4\u65b0\u4ee5\u53cd\u6620\u6700\u7ec8\u5b9e\u73b0\uff1f<\/li>\n<\/ul>\n

                  \ud83d\udee1\ufe0f \u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u7684\u6570\u636e\u5b8c\u6574\u6027<\/h2>\n

                  \u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\uff0c\u8de8\u8282\u70b9\u4fdd\u8bc1ACID\u5c5e\u6027\uff08\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u79bb\u6027\u3001\u6301\u4e45\u6027\uff09\u66f4\u52a0\u56f0\u96be\u3002\u7406\u89e3\u5176\u5bf9ERD\u7684\u5f71\u54cd\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

                    \n
                  • \u6700\u7ec8\u4e00\u81f4\u6027\uff1a<\/strong>\u63a5\u53d7\u6570\u636e\u5728\u526f\u672c\u4e4b\u95f4\u53ef\u80fd\u6682\u65f6\u4e0d\u4e00\u81f4\u7684\u4e8b\u5b9e\u3002\u8bbe\u8ba1\u5e94\u7528\u7a0b\u5e8f\u4ee5\u4f18\u96c5\u5730\u5904\u7406\u8fd9\u79cd\u72b6\u6001\u3002<\/li>\n
                  • \u5e42\u7b49\u6027\uff1a<\/strong>\u786e\u4fdd\u64cd\u4f5c\u53ef\u4ee5\u91cd\u8bd5\u800c\u4e0d\u4f1a\u4ea7\u751f\u526f\u4f5c\u7528\u3002\u8fd9\u5bf9\u4e8e\u7f51\u7edc\u6545\u969c\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5728\u7f51\u7edc\u6545\u969c\u4e2d\u5199\u5165\u53ef\u80fd\u6210\u529f\u4f46\u786e\u8ba4\u6d88\u606f\u4e22\u5931\u3002<\/li>\n
                  • \u51b2\u7a81\u89e3\u51b3\uff1a<\/strong> \u5b9a\u4e49\u5982\u4f55\u5904\u7406\u5bf9\u540c\u4e00\u8bb0\u5f55\u7684\u5e76\u53d1\u66f4\u65b0\u3002\u65f6\u95f4\u6233\u6216\u5411\u91cf\u65f6\u949f\u53ef\u4ee5\u5e2e\u52a9\u786e\u5b9a\u6700\u65b0\u7248\u672c\u3002<\/li>\n<\/ul>\n

                    \u901a\u8fc7\u5c06\u8fd9\u4e9b\u8003\u8651\u56e0\u7d20\u5d4c\u5165\u5230\u4f60\u7684\u5b9e\u4f53\u5173\u7cfb\u56fe\u4e2d\uff0c\u4f60\u6784\u5efa\u7684\u7cfb\u7edf\u4e0d\u4ec5\u4eca\u5929\u80fd\u591f\u6b63\u5e38\u8fd0\u884c\uff0c\u800c\u4e14\u5177\u5907\u5e94\u5bf9\u672a\u6765\u6311\u6218\u7684\u97e7\u6027\u3002\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u66f4\u6539\u6a21\u5f0f\u7684\u6210\u672c\u8fdc\u8fdc\u9ad8\u4e8e\u6700\u521d\u6b63\u786e\u8bbe\u8ba1\u7684\u6210\u672c\u3002<\/p>\n

                    \ud83d\udd0d \u6700\u4f73\u5b9e\u8df5\u603b\u7ed3<\/h2>\n

                    \u603b\u7ed3\u4e00\u4e0b\uff0c\u6210\u529f\u7684\u6269\u5c55\u4f9d\u8d56\u4e8e\u5bf9\u6570\u636e\u5efa\u6a21\u7684\u4e25\u8c28\u65b9\u6cd5\u3002\u5173\u6ce8\u6e05\u6670\u7684\u5b9a\u4e49\u3001\u9002\u5f53\u7684\u89c4\u8303\u5316\u4ee5\u53ca\u6218\u7565\u6027\u7d22\u5f15\u3002\u907f\u514d\u90a3\u4e9b\u635f\u5bb3\u6570\u636e\u5b8c\u6574\u6027\u7684\u6377\u5f84\u3002\u968f\u7740\u7cfb\u7edf\u7684\u53d1\u5c55\uff0c\u5b9a\u671f\u5ba1\u67e5\u4f60\u7684\u56fe\u8868\u3002\u9759\u6001\u7684ERD\u662f\u4e00\u79cd\u8d1f\u62c5\uff1b\u52a8\u6001\u7684\u6a21\u578b\u5219\u662f\u4e00\u79cd\u8d44\u4ea7\u3002<\/p>\n

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