{"id":1585,"date":"2026-03-25T07:37:39","date_gmt":"2026-03-25T07:37:39","guid":{"rendered":"https:\/\/www.ez-knowledge.com\/tw\/schema-optimization-techniques-derived-from-erd-diagrams\/"},"modified":"2026-03-25T07:37:39","modified_gmt":"2026-03-25T07:37:39","slug":"schema-optimization-techniques-derived-from-erd-diagrams","status":"publish","type":"post","link":"https:\/\/www.ez-knowledge.com\/tw\/schema-optimization-techniques-derived-from-erd-diagrams\/","title":{"rendered":"\u5f9e\u5be6\u9ad4\u95dc\u4fc2\u5716\u884d\u751f\u7684\u7d50\u69cb\u512a\u5316\u6280\u8853"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Cartoon-style infographic illustrating database schema optimization techniques derived from ER diagrams, covering ERD fundamentals, normalization forms (1NF-3NF), denormalization strategies, relationship cardinality types, indexing best practices, data integrity constraints, and a pre-deployment optimization checklist\" decoding=\"async\" src=\"https:\/\/www.ez-knowledge.com\/wp-content\/uploads\/2026\/03\/schema-optimization-erd-infographic.jpg\"\/><\/figure>\n<\/div>\n<p>\u8a2d\u8a08\u7a69\u5065\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u9700\u8981\u7cbe\u78ba\u8207\u9060\u898b\u3002\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u662f\u6b64\u67b6\u69cb\u7684\u57fa\u790e\u85cd\u5716\u3002\u82e5\u7f3a\u4e4f\u660e\u78ba\u7684\u5716\u8b5c\uff0c\u8cc7\u6599\u91cd\u8907\u8207\u67e5\u8a62\u74f6\u9838\u5c07\u8fc5\u901f\u51fa\u73fe\uff0c\u5c0e\u81f4\u6548\u80fd\u96a8\u6642\u9593\u9010\u6f38\u9000\u5316\u3002\u672c\u6307\u5357\u63a2\u8a0e\u5982\u4f55\u76f4\u63a5\u5f9e\u9019\u4e9b\u8996\u89ba\u5316\u6a21\u578b\u4e2d\u63a8\u5c0e\u51fa\u512a\u5316\u6280\u8853\u3002\u6211\u5011\u5c08\u6ce8\u65bc\u7d50\u69cb\u5b8c\u6574\u6027\u8207\u6548\u80fd\u8abf\u6821\uff0c\u4e0d\u4f9d\u8cf4\u7279\u5b9a\u5e73\u53f0\u529f\u80fd\u6216\u5c08\u6709\u5de5\u5177\u3002\u900f\u904e\u7406\u89e3\u5e95\u5c64\u7684\u95dc\u806f\u95dc\u4fc2\uff0c\u60a8\u4fbf\u80fd\u5efa\u69cb\u51fa\u53ef\u9ad8\u6548\u64f4\u5c55\u7684\u7cfb\u7d71\u3002<\/p>\n<h2>\ud83d\udcd0 \u7406\u89e3 ERD \u57fa\u790e<\/h2>\n<p>\u512a\u5316\u958b\u59cb\u4e4b\u524d\uff0c\u6838\u5fc3\u5143\u4ef6\u5fc5\u9808\u6e05\u6670\u660e\u78ba\u3002ER \u5716\u5c07\u696d\u52d9\u9700\u6c42\u8f49\u5316\u70ba\u908f\u8f2f\u8cc7\u6599\u6a21\u578b\u3002\u5b83\u5b9a\u7fa9\u4e86\u8cc7\u8a0a\u5982\u4f55\u88ab\u5132\u5b58\u8207\u5b58\u53d6\u3002\u7a69\u56fa\u7684\u57fa\u790e\u80fd\u907f\u514d\u958b\u767c\u9031\u671f\u5f8c\u6bb5\u7522\u751f\u7d50\u69cb\u6027\u50b5\u52d9\u3002\u8acb\u8003\u616e\u4ee5\u4e0b\u8981\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u5be6\u9ad4\uff1a<\/strong>\u4ee3\u8868\u7269\u4ef6\u6216\u6982\u5ff5\uff0c\u4f8b\u5982\u5ba2\u6236\u3001\u8a02\u55ae\u6216\u7522\u54c1\u3002\u6bcf\u500b\u5be6\u9ad4\u5728\u7269\u7406\u7d50\u69cb\u4e2d\u6703\u8f49\u5316\u70ba\u4e00\u5f35\u8cc7\u6599\u8868\u3002<\/li>\n<li><strong>\u5c6c\u6027\uff1a<\/strong>\u5b9a\u7fa9\u5be6\u9ad4\u7684\u7279\u6027\uff0c\u4f8b\u5982\u540d\u7a31\u3001\u8b58\u5225\u78bc\u6216\u6642\u9593\u6233\u8a18\u3002\u9019\u4e9b\u6703\u8f49\u5316\u70ba\u8cc7\u6599\u8868\u4e2d\u7684\u6b04\u4f4d\u3002<\/li>\n<li><strong>\u95dc\u806f\uff1a<\/strong>\u986f\u793a\u5be6\u9ad4\u4e4b\u9593\u7684\u4e92\u52d5\u65b9\u5f0f\u3002\u9019\u4e9b\u6c7a\u5b9a\u4e86\u5916\u9375\u8207\u7d04\u675f\u7684\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<p>\u5c07\u9019\u4e9b\u5143\u4ef6\u8996\u89ba\u5316\uff0c\u53ef\u8b93\u60a8\u5728\u64b0\u5beb\u4efb\u4f55\u7a0b\u5f0f\u78bc\u4e4b\u524d\u5c31\u8b58\u5225\u6f5b\u5728\u554f\u984c\u3002\u9019\u78ba\u4fdd\u908f\u8f2f\u6d41\u7a0b\u8207\u5be6\u969b\u5132\u5b58\u9700\u6c42\u76f8\u7b26\u3002\u9019\u7a2e\u5c0d\u9f4a\u5c0d\u65bc\u7dad\u6301\u8907\u96dc\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u8cc7\u6599\u4e00\u81f4\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2>\ud83d\udd28 \u7528\u65bc\u8cc7\u6599\u5b8c\u6574\u6027\u7684\u6b63\u898f\u5316\u7b56\u7565<\/h2>\n<p>\u6b63\u898f\u5316\u662f\u7d44\u7e54\u8cc7\u6599\u4ee5\u6e1b\u5c11\u91cd\u8907\u4e26\u63d0\u5347\u5b8c\u6574\u6027\u7684\u904e\u7a0b\u3002\u5b83\u6d89\u53ca\u5c07\u5927\u578b\u8cc7\u6599\u8868\u62c6\u5206\u70ba\u8f03\u5c0f\u4e14\u908f\u8f2f\u6e05\u6670\u7684\u55ae\u5143\u3002\u96d6\u7136\u904e\u5ea6\u6b63\u898f\u5316\u53ef\u80fd\u5c0e\u81f4\u8b80\u53d6\u901f\u5ea6\u4e0b\u964d\uff0c\u4f46\u5b8c\u5168\u8df3\u904e\u5247\u6703\u7522\u751f\u66f4\u65b0\u7570\u5e38\u3002\u76ee\u6a19\u662f\u627e\u5230\u9069\u5408\u60a8\u7279\u5b9a\u5de5\u4f5c\u8ca0\u8f09\u7684\u5e73\u8861\u9ede\u3002<\/p>\n<h3>\u7b2c\u4e00\u6b63\u898f\u5316\u5f62\u5f0f\uff081NF\uff09<\/h3>\n<p>\u7b2c\u4e00\u689d\u898f\u5247\u8981\u6c42\u6bcf\u500b\u6b04\u4f4d\u90fd\u5305\u542b\u539f\u5b50\u503c\u3002\u55ae\u5143\u683c\u5167\u4e0d\u5f97\u5141\u8a31\u91cd\u8907\u7fa4\u7d44\u6216\u9663\u5217\u3002\u9019\u78ba\u4fdd\u6bcf\u7b46\u8cc7\u6599\u90fd\u662f\u7368\u7279\u4e14\u53ef\u67e5\u8a62\u7684\u3002\u4f8b\u5982\uff0c\u96fb\u8a71\u865f\u78bc\u6e05\u55ae\u61c9\u62c6\u5206\u70ba\u7368\u7acb\u7684\u8cc7\u6599\u5217\u6216\u76f8\u95dc\u8cc7\u6599\u8868\uff0c\u800c\u975e\u4ee5\u9017\u865f\u5206\u9694\u7684\u5b57\u4e32\u5f62\u5f0f\u5132\u5b58\u3002<\/p>\n<h3>\u7b2c\u4e8c\u6b63\u898f\u5316\u5f62\u5f0f\uff082NF\uff09<\/h3>\n<p>\u7576\u6eff\u8db3 1NF \u5f8c\uff0c2NF \u8655\u7406\u90e8\u5206\u4f9d\u8cf4\u554f\u984c\u3002\u6240\u6709\u975e\u9375\u5c6c\u6027\u5fc5\u9808\u4f9d\u8cf4\u65bc\u6574\u500b\u4e3b\u9375\u3002\u5728\u8907\u5408\u9375\u7684\u60c5\u6cc1\u4e0b\uff0c\u9019\u53ef\u9632\u6b62\u50c5\u7531\u9375\u7684\u4e00\u90e8\u5206\u6c7a\u5b9a\u5c6c\u6027\u7684\u8cc7\u6599\u91cd\u8907\u3002\u6b64\u6b65\u9a5f\u53ef\u9032\u4e00\u6b65\u512a\u5316\u7d50\u69cb\uff0c\u78ba\u4fdd\u6bcf\u7b46\u8cc7\u8a0a\u6b63\u78ba\u5730\u8207\u5176\u7236\u5be6\u9ad4\u95dc\u806f\u3002<\/p>\n<h3>\u7b2c\u4e09\u6b63\u898f\u5316\u5f62\u5f0f\uff083NF\uff09<\/h3>\n<p>\u7b2c\u4e09\u5f62\u5f0f\u6d88\u9664\u4e86\u50b3\u905e\u4f9d\u8cf4\u3002\u975e\u9375\u5c6c\u6027\u4e0d\u61c9\u4f9d\u8cf4\u65bc\u5176\u4ed6\u975e\u9375\u5c6c\u6027\u3002\u9019\u8868\u793a\u82e5\u5c6c\u6027 A \u4f9d\u8cf4\u65bc\u5c6c\u6027 B\uff0c\u800c B \u53c8\u4f9d\u8cf4\u65bc\u9375\uff0c\u5247 A \u4e0d\u61c9\u5b58\u5728\u65bc\u540c\u4e00\u5f35\u8cc7\u6599\u8868\u4e2d\u3002\u5c07\u6b64\u985e\u8cc7\u6599\u79fb\u81f3\u7368\u7acb\u8cc7\u6599\u8868\uff0c\u53ef\u63d0\u5347\u53ef\u7dad\u8b77\u6027\u4e26\u6e1b\u5c11\u5132\u5b58\u6d6a\u8cbb\u3002<\/p>\n<p>\u4e0b\u8868\u7e3d\u7d50\u4e86\u6b63\u898f\u5316\u7684\u6f14\u9032\u904e\u7a0b\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6b63\u898f\u5316\u5f62\u5f0f<\/th>\n<th>\u4e3b\u8981\u76ee\u6a19<\/th>\n<th>\u95dc\u9375\u7d04\u675f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1NF<\/td>\n<td>\u539f\u5b50\u503c<\/td>\n<td>\u7121\u91cd\u8907\u7fa4\u7d44<\/td>\n<\/tr>\n<tr>\n<td>2NF<\/td>\n<td>\u5b8c\u5168\u4f9d\u8cf4<\/td>\n<td>\u79fb\u9664\u90e8\u5206\u4f9d\u8cf4<\/td>\n<\/tr>\n<tr>\n<td>3NF<\/td>\n<td>\u7368\u7acb<\/td>\n<td>\u79fb\u9664\u50b3\u905e\u4f9d\u8cf4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u26a1 \u70ba\u6027\u80fd\u800c\u9032\u884c\u7684\u975e\u898f\u7bc4\u5316<\/h2>\n<p>\u96d6\u7136\u898f\u7bc4\u5316\u80fd\u78ba\u4fdd\u8cc7\u6599\u5b8c\u6574\u6027\uff0c\u4f46\u5728\u67e5\u8a62\u6642\u7d93\u5e38\u9700\u8981\u8907\u96dc\u7684\u9023\u63a5\u64cd\u4f5c\u3002\u5728\u8b80\u53d6\u5bc6\u96c6\u578b\u7cfb\u7d71\u4e2d\uff0c\u9023\u63a5\u591a\u500b\u8cc7\u6599\u8868\u7684\u958b\u92b7\u53ef\u80fd\u6210\u70ba\u74f6\u9838\u3002\u975e\u898f\u7bc4\u5316\u523b\u610f\u5f15\u5165\u5197\u9918\u4ee5\u63d0\u5347\u6aa2\u7d22\u901f\u5ea6\u3002\u9019\u662f\u5728\u5132\u5b58\u6548\u7387\u8207\u67e5\u8a62\u6548\u80fd\u4e4b\u9593\u7684\u6b0a\u8861\u3002<\/p>\n<p>\u8003\u616e\u4ee5\u4e0b\u9069\u5408\u9032\u884c\u975e\u898f\u7bc4\u5316\u7684\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u5831\u8868\u5100\u8868\u677f\uff1a<\/strong> \u805a\u5408\u8cc7\u6599\u53ef\u4e8b\u5148\u8a08\u7b97\u4e26\u5132\u5b58\uff0c\u4ee5\u907f\u514d\u5373\u6642\u904b\u7b97\u3002<\/li>\n<li><strong>\u5feb\u53d6\u5c64\uff1a<\/strong> \u7d93\u5e38\u5b58\u53d6\u7684\u8cc7\u6599\u53ef\u8907\u88fd\u5230\u4ee5\u8b80\u53d6\u512a\u5316\u4e4b\u5132\u5b58\u7a7a\u9593\u4e2d\u3002<\/li>\n<li><strong>\u9ad8\u541e\u5410\u91cf\u4ea4\u6613\uff1a<\/strong> \u6e1b\u5c11\u9023\u63a5\u6df1\u5ea6\u53ef\u964d\u4f4e\u9396\u7af6\u722d\u8207 CPU \u4f7f\u7528\u91cf\u3002<\/li>\n<\/ul>\n<p>\u5be6\u65bd\u6b64\u7b56\u7565\u6642\uff0c\u61c9\u5efa\u7acb\u660e\u78ba\u7684\u5197\u9918\u8cc7\u6599\u66f4\u65b0\u6d41\u7a0b\u3002\u82e5\u4f86\u6e90\u8cc7\u6599\u8b8a\u66f4\u537b\u672a\u540c\u6b65\u66f4\u65b0\u526f\u672c\uff0c\u5c07\u5c0e\u81f4\u4e0d\u4e00\u81f4\u3002\u5fc5\u9808\u900f\u904e\u81ea\u52d5\u89f8\u767c\u6a5f\u5236\u6216\u61c9\u7528\u7a0b\u5f0f\u908f\u8f2f\u4f86\u8655\u7406\u540c\u6b65\uff0c\u4ee5\u7dad\u6301\u8cc7\u6599\u6e96\u78ba\u6027\u3002<\/p>\n<h2>\ud83d\udd17 \u7ba1\u7406\u57fa\u6578\u8207\u95dc\u4fc2<\/h2>\n<p>\u57fa\u6578\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u6578\u503c\u95dc\u4fc2\u3002\u5b83\u6c7a\u5b9a\u4e86\u5916\u9375\u5982\u4f55\u5be6\u4f5c\u4ee5\u53ca\u8cc7\u6599\u5982\u4f55\u9023\u7d50\u3002\u7406\u89e3\u9019\u4e9b\u6a21\u5f0f\u5c0d\u65bc\u9632\u6b62\u5b64\u7acb\u8a18\u9304\u4e26\u78ba\u4fdd\u53c3\u8003\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<ul>\n<li><strong>\u4e00\u5c0d\u4e00\uff1a<\/strong> \u5728\u4e00\u822c\u7cfb\u7d71\u4e2d\u8f03\u70ba\u7f55\u898b\uff0c\u5e38\u88ab\u7528\u65bc\u5b89\u5168\u6216\u64f4\u5c55\u8868\u683c\u3002Table A \u4e2d\u7684\u55ae\u4e00\u8cc7\u6599\u5217\u50c5\u8207 Table B \u4e2d\u7684\u55ae\u4e00\u8cc7\u6599\u5217\u9023\u7d50\u3002<\/li>\n<li><strong>\u4e00\u5c0d\u591a\uff1a<\/strong> \u6700\u5e38\u898b\u7684\u95dc\u4fc2\u3002\u4e00\u500b\u7236\u8cc7\u6599\u8a18\u9304\u95dc\u806f\u5230\u591a\u500b\u5b50\u8cc7\u6599\u8a18\u9304\u3002\u5916\u9375\u4f4d\u65bc\u5b50\u8cc7\u6599\u8868\u4e2d\u3002<\/li>\n<li><strong>\u591a\u5c0d\u591a\uff1a<\/strong> \u9700\u8981\u4e00\u500b\u4ea4\u96c6\u8868\u683c\u4f86\u89e3\u6c7a\u95dc\u4fc2\u3002\u6b64\u4e2d\u9593\u8868\u683c\u9023\u7d50\u5169\u500b\u5be6\u9ad4\u7684\u4e3b\u9375\u3002<\/li>\n<\/ul>\n<p>\u932f\u8aa4\u7684\u57fa\u6578\u5047\u8a2d\u6703\u5c0e\u81f4\u5132\u5b58\u6548\u7387\u4f4e\u4e0b\u6216\u8cc7\u6599\u72c0\u614b\u7121\u6548\u3002\u4f8b\u5982\uff0c\u5c07\u591a\u5c0d\u591a\u95dc\u4fc2\u8996\u70ba\u55ae\u4e00\u6b04\u4f4d\u5c07\u7121\u6cd5\u5141\u8a31\u591a\u91cd\u95dc\u806f\u3002\u6b63\u78ba\u5efa\u6a21\u9019\u4e9b\u9023\u7d50\uff0c\u53ef\u78ba\u4fdd\u8cc7\u6599\u5eab\u80fd\u57f7\u884c\u5716\u8868\u4e2d\u5b9a\u7fa9\u7684\u696d\u52d9\u898f\u5247\u3002<\/p>\n<h2>\ud83d\udcc9 \u57fa\u65bc\u7d50\u69cb\u5206\u6790\u7684\u7d22\u5f15\u7b56\u7565<\/h2>\n<p>\u7d22\u5f15\u662f\u8b93\u8cc7\u6599\u5eab\u5f15\u64ce\u5feb\u901f\u67e5\u627e\u8cc7\u6599\u7684\u6a5f\u5236\u3002ERD \u7684\u7d50\u69cb\u76f4\u63a5\u6c7a\u5b9a\u54ea\u4e9b\u6b04\u4f4d\u61c9\u5efa\u7acb\u7d22\u5f15\u3002\u76f2\u76ee\u589e\u52a0\u7d22\u5f15\u6703\u6d88\u8017\u78c1\u789f\u7a7a\u9593\u4e26\u964d\u4f4e\u5beb\u5165\u64cd\u4f5c\u7684\u901f\u5ea6\u3002<\/p>\n<p>\u95dc\u9375\u7684\u7d22\u5f15\u8003\u91cf\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u9375\uff1a<\/strong>\u9810\u8a2d\u6703\u81ea\u52d5\u5efa\u7acb\u7d22\u5f15\u3002\u5b83\u5011\u5b9a\u7fa9\u4e86\u6bcf\u4e00\u7b46\u8cc7\u6599\u5217\u7684\u552f\u4e00\u8b58\u5225\u3002<\/li>\n<li><strong>\u5916\u9375\uff1a<\/strong>\u901a\u5e38\u9700\u8981\u5efa\u7acb\u7d22\u5f15\u4ee5\u52a0\u901f\u9023\u63a5\u64cd\u4f5c\u8207\u7d04\u675f\u6aa2\u67e5\u3002<\/li>\n<li><strong>\u8907\u5408\u9375\uff1a<\/strong>\u7576\u67e5\u8a62\u9700\u6839\u64da\u591a\u500b\u6b04\u4f4d\u904e\u6ffe\u6642\u4f7f\u7528\u3002\u7d22\u5f15\u4e2d\u6b04\u4f4d\u7684\u9806\u5e8f\u5c0d\u6548\u80fd\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<li><strong>\u9078\u64c7\u6027\u6b04\u4f4d\uff1a<\/strong> \u70ba\u9ad8\u57fa\u6578\u7684\u6b04\u4f4d\u5efa\u7acb\u7d22\u5f15\u3002\u4f4e\u9078\u64c7\u6027\uff08\u4f8b\u5982\u6027\u5225\uff09\u7684\u6b04\u4f4d\u5f88\u5c11\u80fd\u5f9e\u7d22\u5f15\u4e2d\u53d7\u76ca\u3002<\/li>\n<\/ul>\n<p> \u5c0d\u7167\u8cc7\u6599\u5eab\u7d50\u69cb\u5206\u6790\u60a8\u7684\u67e5\u8a62\u6a21\u5f0f\u3002\u5982\u679c\u67d0\u500b\u7279\u5b9a\u7684\u9023\u63a5\u64cd\u4f5c\u7d93\u5e38\u57f7\u884c\uff0c\u8acb\u78ba\u4fdd\u5916\u9375\u6b04\u4f4d\u5df2\u5efa\u7acb\u7d22\u5f15\u3002\u9019\u53ef\u6e1b\u5c11\u8cc7\u6599\u5eab\u6383\u63cf\u6574\u500b\u8cc7\u6599\u8868\u6240\u82b1\u7684\u6642\u9593\u3002<\/p>\n<h2>\ud83d\udee1\ufe0f \u8cc7\u6599\u5b8c\u6574\u6027\u8207\u53c3\u8003\u7d04\u675f<\/h2>\n<p>\u5b8c\u6574\u6027\u7d04\u675f\u53ef\u4fdd\u8b77\u8cc7\u6599\u7684\u6e96\u78ba\u6027\u8207\u4e00\u81f4\u6027\u3002\u5b83\u5011\u5982\u540c\u9632\u8b77\u6b04\uff0c\u9632\u6b62\u7121\u6548\u8f38\u5165\u6216\u610f\u5916\u522a\u9664\u3002\u96d6\u7136\u90e8\u5206\u7d04\u675f\u7531\u61c9\u7528\u7a0b\u5f0f\u57f7\u884c\uff0c\u4f46\u8cc7\u6599\u5eab\u5c64\u7d1a\u7684\u7d04\u675f\u66f4\u5177\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5e38\u898b\u7684\u7d04\u675f\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>NOT NULL\uff1a<\/strong> \u78ba\u4fdd\u6b04\u4f4d\u59cb\u7d42\u5305\u542b\u503c\u3002\u9632\u6b62\u95dc\u9375\u8cc7\u6599\u6b04\u4f4d\u51fa\u73fe\u7a7a\u7f3a\u3002<\/li>\n<li><strong>UNIQUE\uff1a<\/strong> \u78ba\u4fdd\u7279\u5b9a\u6b04\u4f4d\u4e2d\u6c92\u6709\u5169\u5217\u5177\u6709\u76f8\u540c\u7684\u503c\u3002\u5c0d\u65bc\u96fb\u5b50\u90f5\u4ef6\u6216\u4f7f\u7528\u8005\u540d\u7a31\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li><strong>CASCADE\uff1a<\/strong> \u5b9a\u7fa9\u7576\u7236\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u5b50\u8a18\u9304\u6703\u5982\u4f55\u8655\u7406\u3002\u9078\u9805\u5305\u62ec\u9650\u5236\uff08restrict\uff09\u3001\u7d1a\u806f\uff08cascade\uff09\u6216\u8a2d\u70ba\u7a7a\u503c\uff08set null\uff09\u3002<\/li>\n<li><strong>CHECK\uff1a<\/strong> \u5f37\u5236\u57f7\u884c\u8cc7\u6599\u503c\u4e0a\u7684\u7279\u5b9a\u689d\u4ef6\uff0c\u4f8b\u5982\u65e5\u671f\u7bc4\u570d\u6216\u6578\u503c\u9650\u5236\u3002<\/li>\n<\/ul>\n<p> \u5728\u8cc7\u6599\u5eab\u5c64\u7d1a\u5be6\u65bd\u9019\u4e9b\u898f\u5247\uff0c\u53ef\u907f\u514d\u61c9\u7528\u7a0b\u5f0f\u5fc5\u9808\u9010\u4e00\u9a57\u8b49\u6bcf\u500b\u8cc7\u6599\u9ede\u3002\u9019\u80fd\u96c6\u4e2d\u7ba1\u7406\u8cc7\u6599\u6709\u6548\u6027\u7684\u908f\u8f2f\uff0c\u6e1b\u5c11\u7a0b\u5f0f\u78bc\u91cd\u8907\u8207\u6f5b\u5728\u932f\u8aa4\u3002<\/p>\n<h2>\ud83d\udd04 \u8ff4\u5708\u5f0f\u512a\u5316\u8207\u7d50\u69cb\u6f14\u9032<\/h2>\n<p>\u8cc7\u6599\u5eab\u7d50\u69cb\u8a2d\u8a08\u4e26\u975e\u4e00\u8e74\u53ef\u5e7e\u7684\u4efb\u52d9\u3002\u696d\u52d9\u9700\u6c42\u6703\u8b8a\u52d5\uff0c\u8cc7\u6599\u6a21\u578b\u4e5f\u5fc5\u9808\u6301\u7e8c\u6f14\u9032\u3002\u5b9a\u671f\u6aa2\u8996\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u8207\u5be6\u969b\u7d50\u69cb\uff0c\u6709\u52a9\u65bc\u767c\u73fe\u53ef\u6539\u5584\u4e4b\u8655\u3002\u76e3\u63a7\u67e5\u8a62\u6548\u80fd\uff0c\u53ef\u63d0\u4f9b\u7d50\u69cb\u8a2d\u8a08\u74f6\u9838\u7684\u6d1e\u5bdf\u3002<\/p>\n<p>\u512a\u5316\u904e\u7a0b\u4e2d\uff0c\u8acb\u8003\u616e\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u6aa2\u8996\u7d22\u5f15\u4f7f\u7528\u72c0\u6cc1\uff1a<\/strong> \u79fb\u9664\u672a\u4f7f\u7528\u7684\u7d22\u5f15\uff0c\u4ee5\u964d\u4f4e\u5beb\u5165\u8ca0\u8f09\u3002<\/li>\n<li><strong>\u6aa2\u67e5\u5206\u5272\uff1a<\/strong> \u5927\u578b\u8cc7\u6599\u8868\u53ef\u80fd\u56e0\u6839\u64da\u7bc4\u570d\u6216\u9375\u503c\u5206\u5272\u8cc7\u6599\u800c\u53d7\u76ca\u3002<\/li>\n<li><strong>\u66f4\u65b0\u57fa\u6578\uff1a<\/strong> \u96a8\u8457\u696d\u52d9\u908f\u8f2f\u7684\u8f49\u8b8a\uff0c\u95dc\u4fc2\u53ef\u80fd\u5f9e\u4e00\u5c0d\u591a\u8f49\u8b8a\u70ba\u591a\u5c0d\u591a\u3002<\/li>\n<li><strong>\u7248\u672c\u63a7\u5236\uff1a<\/strong> \u5c07\u7d50\u69cb\u8b8a\u66f4\u8996\u70ba\u7a0b\u5f0f\u78bc\u8655\u7406\u3002\u8ffd\u8e64\u8b8a\u66f4\u5167\u5bb9\uff0c\u4ee5\u4fbf\u5fc5\u8981\u6642\u9032\u884c\u9084\u539f\u3002<\/li>\n<\/ul>\n<p>\u9019\u7a2e\u8ff4\u5708\u5f0f\u65b9\u6cd5\u53ef\u78ba\u4fdd\u8cc7\u6599\u5eab\u9577\u671f\u4ee5\u4f86\u4ecd\u8207\u61c9\u7528\u7a0b\u5f0f\u9700\u6c42\u4fdd\u6301\u4e00\u81f4\u3002\u5b83\u80fd\u9632\u6b62\u6280\u8853\u50b5\u7d2f\u7a4d\uff0c\u907f\u514d\u62d6\u6162\u672a\u4f86\u7684\u958b\u767c\u9032\u5ea6\u3002<\/p>\n<h2>\u2705 \u512a\u5316\u6aa2\u67e5\u6e05\u55ae<\/h2>\n<p>\u4f7f\u7528\u6b64\u6e05\u55ae\u5728\u90e8\u7f72\u524d\u9a57\u8b49\u60a8\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u8a2d\u8a08\uff1a<\/p>\n<ul>\n<li>\u78ba\u8a8d\u6240\u6709\u8cc7\u6599\u8868\u81f3\u5c11\u7b26\u5408\u7b2c\u4e09\u7bc4\u5f0f\uff083NF\uff09\u3002<\/li>\n<li>\u78ba\u4fdd\u5728\u7d93\u5e38\u9032\u884c\u9023\u63a5\u64cd\u4f5c\u6642\uff0c\u5916\u9375\u5df2\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n<li>\u6aa2\u67e5\u95dc\u4fc2\u4e2d\u662f\u5426\u5b58\u5728\u5faa\u74b0\u4f9d\u8cf4\u3002<\/li>\n<li>\u78ba\u8a8d\u6bcf\u500b\u8cc7\u6599\u8868\u90fd\u5df2\u5b9a\u7fa9\u4e3b\u9375\u3002<\/li>\n<li>\u6aa2\u8996\u7d04\u675f\u689d\u4ef6\uff0c\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u898f\u5247\u5f97\u4ee5\u57f7\u884c\u3002<\/li>\n<li>\u5206\u6790\u67e5\u8a62\u6a21\u5f0f\uff0c\u4ee5\u8b58\u5225\u53ef\u80fd\u7684\u53cd\u898f\u7bc4\u5316\u6a5f\u6703\u3002<\/li>\n<li>\u8a18\u9304\u6240\u6709\u95dc\u65bc\u8cc7\u6599\u57fa\u6578\u548c\u6578\u91cf\u7684\u5047\u8a2d\u3002<\/li>\n<\/ul>\n<p>\u9075\u5faa\u9019\u4e9b\u6b65\u9a5f\u53ef\u5efa\u7acb\u7a69\u5065\u7684\u8cc7\u6599\u5132\u5b58\u57fa\u790e\u3002\u7cfb\u7d71\u80fd\u61c9\u5c0d\u6210\u9577\u800c\u7121\u9700\u5b8c\u5168\u91cd\u69cb\u3002\u4e00\u500b\u7d93\u904e\u826f\u597d\u512a\u5316\u7684\u8cc7\u6599\u7d50\u69cb\uff0c\u6b63\u662f\u9072\u7de9\u61c9\u7528\u8207\u97ff\u61c9\u8fc5\u901f\u61c9\u7528\u4e4b\u9593\u7684\u5dee\u5225\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8a2d\u8a08\u7a69\u5065\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u9700\u8981\u7cbe\u78ba\u8207\u9060\u898b\u3002\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u662f\u6b64&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1586,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u5f9e\u5be6\u9ad4\u95dc\u4fc2\u5716\u884d\u751f\u7684\u8cc7\u6599\u7d50\u69cb\u512a\u5316\u6280\u8853 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