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

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    \n
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  • \u5c6c\u6027\uff1a<\/strong> \u5b83\u5011\u662f\u63cf\u8ff0\u5be6\u9ad4\u7684\u5c6c\u6027\u3002\u8cc7\u6599\u985e\u578b\u5728\u6b64\u81f3\u95dc\u91cd\u8981\u3002\u9078\u64c7\u6b63\u78ba\u7684\u985e\u578b\u6703\u5f71\u97ff\u5132\u5b58\u6548\u7387\u548c\u67e5\u8a62\u6548\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u5c08\u7528\u7684\u6574\u6578\u985e\u578b\u4f5c\u70baID\uff0c\u6bd4\u4f7f\u7528\u5b57\u4e32\u9032\u884c\u7d22\u5f15\u66f4\u512a\u8d8a\u3002<\/li>\n
  • \u95dc\u4fc2\uff1a<\/strong> \u5b83\u5011\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u4e92\u52d5\u65b9\u5f0f\u3002\u57fa\u6578\u662f\u65e9\u671f\u5fc5\u9808\u660e\u78ba\u7684\u6700\u91cd\u8981\u65b9\u9762\u3002\u82e5\u5c07\u4e00\u5c0d\u591a\u95dc\u4fc2\u8aa4\u89e3\u70ba\u591a\u5c0d\u591a\uff0c\u5c07\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u9023\u63a5\u64cd\u4f5c\uff0c\u4e26\u9020\u6210\u56b4\u91cd\u7684\u6548\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n

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      \n
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        \n
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          \n
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          \ud83d\udcd1 \u5927\u8cc7\u6599\u96c6\u7684\u7d22\u5f15\u7b56\u7565<\/h2>\n

          \u7d22\u5f15\u5c0d\u65bc\u67e5\u8a62\u6548\u80fd\u81f3\u95dc\u91cd\u8981\uff0c\u4f46\u6703\u5e36\u4f86\u6210\u672c\u3002\u6bcf\u500b\u7d22\u5f15\u90fd\u6703\u6d88\u8017\u5132\u5b58\u7a7a\u9593\u4e26\u6e1b\u6162\u5beb\u5165\u64cd\u4f5c\u3002\u7d22\u5f15\u7b56\u7565\u5fc5\u9808\u5177\u5099\u6230\u7565\u6027\u3002<\/p>\n

            \n
          • \u9078\u64c7\u6027\u7d22\u5f15\uff1a<\/strong> \u5728\u80fd\u5927\u5e45\u8fc7\u6ee4\u6570\u636e\u7684\u5217\u4e0a\u521b\u5efa\u7d22\u5f15\u3002\u4f4e\u57fa\u6570\u7684\u5217\uff08\u4f8b\u5982\u6027\u522b\uff09\u901a\u5e38\u4e0d\u9002\u5408\u4f5c\u4e3a\u4e3b\u7d22\u5f15\u7684\u5019\u9009\u3002<\/li>\n
          • \u8907\u5408\u7d22\u5f15\uff1a<\/strong> \u6309\u7167\u7b26\u5408\u67e5\u8a62\u6a21\u5f0f\u7684\u9806\u5e8f\uff0c\u5c07\u591a\u500b\u5217\u7d50\u5408\u8d77\u4f86\u3002\u5de6\u5074\u524d\u7db4\u898f\u5247\u9069\u7528\uff0c\u8868\u793a\u7d22\u5f15\u4e2d\u7684\u7b2c\u4e00\u500b\u5217\u5fc5\u9808\u8207\u67e5\u8a62\u5339\u914d\uff0c\u7d22\u5f15\u624d\u80fd\u88ab\u6709\u6548\u4f7f\u7528\u3002<\/li>\n
          • \u8986\u84cb\u7d22\u5f15\uff1a<\/strong> \u5c07\u67e5\u8a62\u6240\u9700\u7684\u5168\u90e8\u6b04\u4f4d\u5305\u542b\u5728\u7d22\u5f15\u672c\u8eab\u4e2d\u3002\u9019\u4f7f\u5f97\u8cc7\u6599\u5eab\u53ef\u4ee5\u5728\u4e0d\u8a2a\u554f\u8868\u8cc7\u6599\u7684\u60c5\u6cc1\u4e0b\u6eff\u8db3\u67e5\u8a62\uff0c\u9019\u7a2e\u64cd\u4f5c\u7a31\u70ba\u300c\u8986\u84cb\u300d\u3002<\/li>\n
          • \u90e8\u5206\u7d22\u5f15\uff1a<\/strong> \u50c5\u5c0d\u8868\u4e2d\u7684\u4e00\u5c0f\u90e8\u5206\u8cc7\u6599\u5217\u5efa\u7acb\u7d22\u5f15\u3002\u9019\u5c0d\u65bc\u8edf\u522a\u9664\u6216\u7279\u5b9a\u72c0\u614b\u6a19\u8a18\u975e\u5e38\u6709\u7528\uff0c\u53ef\u6e1b\u5c11\u7d22\u5f15\u7d50\u69cb\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n

            \u5b9a\u671f\u5be9\u67e5\u67e5\u8a62\u57f7\u884c\u8a08\u756b\u3002\u5373\u4f7f\u7d22\u5f15\u5728\u7d19\u4e0a\u770b\u8d77\u4f86\u5f88\u597d\uff0c\u4f46\u5982\u679c\u7d71\u8a08\u8cc7\u6599\u904e\u6642\uff0c\u67e5\u8a62\u512a\u5316\u5668\u4e5f\u53ef\u80fd\u5ffd\u7565\u5b83\u3002\u5b9a\u671f\u7dad\u8b77\u53ef\u78ba\u4fdd\u8cc7\u6599\u5eab\u5f15\u64ce\u505a\u51fa\u6700\u4f73\u6c7a\u7b56\u3002<\/p>\n

            \ud83d\udd04 \u6f14\u5316\u8207\u8cc7\u6599\u5eab\u7d50\u69cb\u9077\u79fb<\/h2>\n

            \u7cfb\u7d71\u4e26\u975e\u975c\u614b\u7684\u3002\u9700\u6c42\u6703\u8b8a\u66f4\uff0c\u8cc7\u6599\u6a21\u578b\u4e5f\u5fc5\u9808\u6f14\u9032\u3002\u5728\u4e0d\u4e2d\u65b7\u670d\u52d9\u7684\u60c5\u6cc1\u4e0b\uff0c\u5f9e\u7248\u672c A \u8fc1\u79fb\u5230\u7248\u672c B \u662f\u4e00\u9805\u95dc\u9375\u6280\u80fd\u3002<\/p>\n

              \n
            • \u65b0\u589e\u8b8a\u66f4\uff1a<\/strong> \u65b0\u589e\u6b04\u4f4d\u6216\u8cc7\u6599\u8868\u901a\u5e38\u5f88\u5b89\u5168\uff0c\u4e0d\u6703\u7834\u58de\u73fe\u6709\u7684\u67e5\u8a62\u3002\u9019\u662f\u5f15\u5165\u65b0\u529f\u80fd\u7684\u9996\u9078\u65b9\u6cd5\u3002<\/li>\n
            • \u91cd\u547d\u540d\u64cd\u4f5c\uff1a<\/strong> \u91cd\u547d\u540d\u6b04\u4f4d\u5177\u6709\u98a8\u96aa\uff0c\u9700\u8981\u66f4\u65b0\u61c9\u7528\u7a0b\u5f0f\u7a0b\u5f0f\u78bc\u3002\u61c9\u898f\u5283\u4e00\u6bb5\u68c4\u7528\u671f\u9593\uff0c\u540c\u6642\u652f\u63f4\u820a\u540d\u7a31\u8207\u65b0\u540d\u7a31\u3002<\/li>\n
            • \u7d04\u675f\u65b0\u589e\uff1a<\/strong> \u82e5\u5df2\u6709\u8cc7\u6599\u5b58\u5728\uff0c\u5411\u73fe\u6709\u8cc7\u6599\u65b0\u589e\u7d04\u675f\uff08\u5982 NOT NULL\uff09\u53ef\u80fd\u6703\u5931\u6557\u3002\u61c9\u5148\u9a57\u8b49\u8cc7\u6599\uff0c\u518d\u5206\u6b65\u9a5f\u65b0\u589e\u7d04\u675f\u3002<\/li>\n
            • \u5411\u5f8c\u76f8\u5bb9\u6027\uff1a<\/strong> \u78ba\u4fdd\u65b0\u7248\u672c\u7684\u8cc7\u6599\u7d50\u69cb\u4e0d\u6703\u7834\u58de\u73fe\u6709\u7684\u5ba2\u6236\u7aef\u3002\u4f7f\u7528\u529f\u80fd\u65d7\u6a19\uff0c\u50c5\u5728\u8cc7\u6599\u7d50\u69cb\u6e96\u5099\u5c31\u7dd2\u6642\u624d\u555f\u7528\u65b0\u908f\u8f2f\u3002<\/li>\n<\/ul>\n

              \ud83d\udeab \u61c9\u907f\u514d\u7684\u5e38\u898b\u9677\u9631<\/h2>\n

              \u5373\u4f7f\u7d93\u9a57\u8c50\u5bcc\u7684\u8a2d\u8a08\u5e2b\u4e5f\u6703\u9047\u5230\u554f\u984c\u3002\u53ca\u65e9\u8b58\u5225\u9019\u4e9b\u6a21\u5f0f\u53ef\u7bc0\u7701\u5927\u91cf\u5de5\u7a0b\u6642\u9593\u3002<\/p>\n

                \n
              • \u7dca\u5bc6\u8026\u5408\uff1a<\/strong> \u5efa\u7acb\u5f37\u5236\u7121\u95dc\u5be6\u9ad4\u4e4b\u9593\u56b4\u683c\u540c\u6b65\u7684\u95dc\u4fc2\u3002\u4fdd\u6301\u6a21\u7d44\u9593\u9b06\u6563\u8026\u5408\uff0c\u4ee5\u652f\u63f4\u7368\u7acb\u90e8\u7f72\u3002<\/li>\n
              • \u904e\u5ea6\u8a2d\u8a08\uff1a<\/strong> \u70ba\u53ef\u80fd\u6c38\u9060\u4e0d\u6703\u767c\u751f\u7684\u60c5\u5883\u9032\u884c\u8a2d\u8a08\u3002\u5c08\u6ce8\u65bc\u80fd\u9a45\u52d5 90% \u6d41\u91cf\u7684 80% \u4f7f\u7528\u60c5\u5883\u3002\u7c21\u55ae\u6027\u6709\u52a9\u65bc\u7dad\u8b77\u3002<\/li>\n
              • \u5ffd\u7565\u8edf\u522a\u9664\uff1a<\/strong> \u786c\u522a\u9664\u6703\u6c38\u4e45\u79fb\u9664\u8cc7\u6599\u3002\u70ba\u4e86\u7a3d\u6838\u8ffd\u8e64\u6216\u8cc7\u6599\u6062\u5fa9\uff0c\u61c9\u4f7f\u7528\u72c0\u614b\u65d7\u6a19\uff08\u4f8b\u5982 is_deleted\uff09\u800c\u975e\u7269\u7406\u522a\u9664\u3002<\/li>\n
              • N+1 \u67e5\u8a62\u554f\u984c\uff1a<\/strong> \u672a\u80fd\u9810\u898b\u8cc7\u6599\u5c07\u5982\u4f55\u88ab\u8b80\u53d6\u3002\u61c9\u5728\u8cc7\u6599\u5b58\u53d6\u5c64\u898f\u5283\u9810\u52a0\u8f09\u6216\u6279\u6b21\u8b80\u53d6\uff0c\u4ee5\u907f\u514d\u904e\u591a\u7684\u8cc7\u6599\u5eab\u5f80\u8fd4\u6b21\u6578\u3002<\/li>\n<\/ul>\n

                \u2705 \u90e8\u7f72\u524d\u8a2d\u8a08\u6aa2\u67e5\u6e05\u55ae<\/h2>\n

                \u5728\u6700\u7d42\u78ba\u5b9a\u8cc7\u6599\u7d50\u69cb\u524d\uff0c\u8acb\u9010\u4e00\u6838\u5c0d\u6b64\u9a57\u8b49\u6e05\u55ae\uff0c\u4ee5\u78ba\u4fdd\u5177\u5099\u64f4\u5c55\u80fd\u529b\u3002<\/p>\n

                  \n
                • \u2610 \u4e3b\u9375\uff1a<\/strong>\u6240\u6709\u8868\u683c\u662f\u5426\u90fd\u914d\u5099\u4e86\u552f\u4e00\u4e14\u5df2\u7d22\u5f15\u7684\u4e3b\u9375\uff1f<\/li>\n
                • \u2610 \u5916\u9375\uff1a<\/strong>\u95dc\u4fc2\u662f\u5426\u6b63\u78ba\u5b9a\u7fa9\uff1f\u57fa\u6578\u662f\u5426\u6e96\u78ba\uff1f<\/li>\n
                • \u2610 \u8cc7\u6599\u985e\u578b\uff1a<\/strong>ID \u548c\u91d1\u984d\u662f\u5426\u4f7f\u7528\u6578\u503c\u985e\u578b\uff1f\u65e5\u671f\u985e\u578b\u662f\u5426\u5df2\u6a19\u6e96\u5316\uff1f<\/li>\n
                • \u2610 \u5141\u8a31\u7a7a\u503c\uff1a<\/strong>\u5fc5\u8981\u6b04\u4f4d\u662f\u5426\u6a19\u8a18\u70ba NOT NULL\uff1f<\/li>\n
                • \u2610 \u7d22\u5f15\uff1a<\/strong>\u9ad8\u6d41\u91cf\u67e5\u8a62\u6b04\u4f4d\u662f\u5426\u5df2\u5efa\u7acb\u7d22\u5f15\uff1f<\/li>\n
                • \u2610 \u5206\u7247\uff1a<\/strong>\u82e5\u9810\u671f\u9032\u884c\u6c34\u5e73\u64f4\u5c55\uff0c\u662f\u5426\u5b58\u5728\u53ef\u884c\u7684\u5206\u7247\u9375\uff1f<\/li>\n
                • \u2610 \u7d04\u675f\uff1a<\/strong>\u7d04\u675f\u5c0d\u65bc\u696d\u52d9\u908f\u8f2f\u662f\u5426\u5fc5\u8981\uff0c\u9084\u662f\u53ef\u4ee5\u5728\u61c9\u7528\u5c64\u8655\u7406\uff1f<\/li>\n
                • \u2610 \u6587\u4ef6\uff1a<\/strong>ERD \u662f\u5426\u5df2\u66f4\u65b0\u4ee5\u53cd\u6620\u6700\u7d42\u5be6\u73fe\uff1f<\/li>\n<\/ul>\n

                  \ud83d\udee1\ufe0f \u5206\u5e03\u5f0f\u74b0\u5883\u4e2d\u7684\u8cc7\u6599\u5b8c\u6574\u6027<\/h2>\n

                  \u5728\u5206\u5e03\u5f0f\u74b0\u5883\u4e2d\uff0c\u8de8\u7bc0\u9ede\u78ba\u4fddACID\u5c6c\u6027\uff08\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u96e2\u6027\u3001\u6301\u4e45\u6027\uff09\u66f4\u52a0\u56f0\u96e3\u3002\u7406\u89e3\u5176\u5c0dERD\u7684\u5f71\u97ff\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

                    \n
                  • \u6700\u7d42\u4e00\u81f4\u6027\uff1a<\/strong>\u63a5\u53d7\u8cc7\u6599\u5728\u526f\u672c\u4e4b\u9593\u53ef\u80fd\u66ab\u6642\u4e0d\u4e00\u81f4\u7684\u4e8b\u5be6\u3002\u8a2d\u8a08\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u4ee5\u59a5\u5584\u8655\u7406\u6b64\u72c0\u614b\u3002<\/li>\n
                  • \u51aa\u7b49\u6027\uff1a<\/strong>\u78ba\u4fdd\u64cd\u4f5c\u53ef\u4ee5\u91cd\u8a66\u800c\u4e0d\u7522\u751f\u526f\u4f5c\u7528\u3002\u9019\u5c0d\u65bc\u7db2\u8def\u6545\u969c\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u5beb\u5165\u53ef\u80fd\u6210\u529f\uff0c\u4f46\u78ba\u8a8d\u8a0a\u606f\u537b\u907a\u5931\u3002<\/li>\n
                  • \u885d\u7a81\u89e3\u6c7a\uff1a<\/strong> \u5b9a\u7fa9\u5982\u4f55\u8655\u7406\u5c0d\u540c\u4e00\u7b46\u8a18\u9304\u7684\u540c\u6642\u66f4\u65b0\u3002\u6642\u9593\u6233\u6216\u5411\u91cf\u6642\u9418\u53ef\u5354\u52a9\u5224\u65b7\u6700\u65b0\u7248\u672c\u3002<\/li>\n<\/ul>\n

                    \u900f\u904e\u5c07\u9019\u4e9b\u8003\u91cf\u56e0\u7d20\u5d4c\u5165\u60a8\u7684\u5be6\u9ad4\u95dc\u4fc2\u5716\u4e2d\uff0c\u60a8\u6240\u5efa\u7acb\u7684\u7cfb\u7d71\u4e0d\u50c5\u4eca\u65e5\u80fd\u6b63\u5e38\u904b\u4f5c\uff0c\u4e5f\u5177\u5099\u8db3\u5920\u7684\u7a69\u5065\u6027\u4ee5\u61c9\u5c0d\u672a\u4f86\u6311\u6230\u3002\u5728\u751f\u7522\u74b0\u5883\u4e2d\u66f4\u6539\u8cc7\u6599\u7d50\u69cb\u7684\u6210\u672c\uff0c\u9060\u9ad8\u65bc\u4e00\u958b\u59cb\u5c31\u6b63\u78ba\u8a2d\u8a08\u7684\u6210\u672c\u3002<\/p>\n

                    \ud83d\udd0d \u6700\u4f73\u5be6\u52d9\u7e3d\u7d50<\/h2>\n

                    \u7e3d\u7d50\u4f86\u8aaa\uff0c\u6210\u529f\u7684\u64f4\u5c55\u53d6\u6c7a\u65bc\u5c0d\u8cc7\u6599\u6a21\u578b\u7684\u56b4\u8b39\u65b9\u6cd5\u3002\u5c08\u6ce8\u65bc\u660e\u78ba\u7684\u5b9a\u7fa9\u3001\u9069\u7576\u7684\u6b63\u898f\u5316\u4ee5\u53ca\u7b56\u7565\u6027\u7684\u7d22\u5f15\u3002\u907f\u514d\u6703\u640d\u5bb3\u8cc7\u6599\u5b8c\u6574\u6027\u7684\u6377\u5f91\u3002\u96a8\u8457\u7cfb\u7d71\u7684\u6f14\u9032\uff0c\u5b9a\u671f\u6aa2\u8996\u60a8\u7684\u5716\u8868\u3002\u975c\u614b\u7684ERD\u662f\u4e00\u7a2e\u8ca0\u64d4\uff1b\u6d3b\u8e8d\u7684\u6a21\u578b\u5247\u662f\u4e00\u9805\u8cc7\u7522\u3002<\/p>\n

                    \u5728\u8a2d\u8a08\u968e\u6bb5\u6295\u5165\u6642\u9593\u3002\u9019\u5c07\u5728\u964d\u4f4e\u7dad\u8b77\u6210\u672c\u8207\u63d0\u5347\u7cfb\u7d71\u53ef\u9760\u6027\u65b9\u9762\u5e36\u4f86\u56de\u5831\u3002\u60a8\u7684\u4f7f\u7528\u8005\u6c38\u9060\u4e0d\u6703\u770b\u5230\u5716\u8868\uff0c\u4f46\u4ed6\u5011\u6703\u611f\u53d7\u5230\u5176\u6240\u652f\u63f4\u7cfb\u7d71\u7684\u6548\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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