{"id":73,"date":"2026-04-05T04:46:54","date_gmt":"2026-04-05T04:46:54","guid":{"rendered":"https:\/\/www.we-notes.com\/tw\/er-diagrams-mapping-business-rules-to-schemas\/"},"modified":"2026-04-05T04:46:54","modified_gmt":"2026-04-05T04:46:54","slug":"er-diagrams-mapping-business-rules-to-schemas","status":"publish","type":"post","link":"https:\/\/www.we-notes.com\/tw\/er-diagrams-mapping-business-rules-to-schemas\/","title":{"rendered":"\u6df1\u5165\u63a2\u8a0e\u5be6\u9ad4\u95dc\u4fc2\u5716\uff1a\u5c07\u73fe\u5be6\u4e16\u754c\u7684\u5546\u696d\u898f\u5247\u8f49\u63db\u70ba\u6280\u8853\u67b6\u69cb"},"content":{"rendered":"<p>\u8cc7\u6599\u662f\u4efb\u4f55\u73fe\u4ee3\u8cc7\u8a0a\u7cfb\u7d71\u7684\u9aa8\u5e79\u3002\u7136\u800c\uff0c\u6c92\u6709\u7d50\u69cb\u7684\u8cc7\u6599\u50c5\u50c5\u662f\u96dc\u8a0a\u3002\u70ba\u4e86\u5c07\u539f\u59cb\u8cc7\u8a0a\u8f49\u5316\u70ba\u53ef\u57f7\u884c\u7684\u667a\u6167\uff0c\u6211\u5011\u4f9d\u8cf4\u7d50\u69cb\u5316\u7684\u8cc7\u6599\u6a21\u578b\u3002\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u70ba\u9019\u4e9b\u7d50\u69cb\u63d0\u4f9b\u4e86\u5efa\u7bc9\u85cd\u5716\u3002\u5b83\u5f4c\u88dc\u4e86\u62bd\u8c61\u5546\u696d\u9700\u6c42\u8207\u5177\u9ad4\u6280\u8853\u5be6\u73fe\u4e4b\u9593\u7684\u5dee\u8ddd\u3002\u672c\u6307\u5357\u63a2\u8a0e\u8cc7\u6599\u6a21\u578b\u7684\u904b\u4f5c\u6a5f\u5236\uff0c\u5c08\u6ce8\u65bc\u5982\u4f55\u6e96\u78ba\u5730\u5c07\u904b\u71df\u908f\u8f2f\u8f49\u8b6f\u70ba\u8cc7\u6599\u7d50\u69cb\u5b9a\u7fa9\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Hand-drawn infographic explaining Entity-Relationship Diagrams: visual guide to core components (entities, attributes, relationships), cardinality types (1:1, 1:N, M:N) with notation examples, business rule translation workflow from natural language to database schema, and normalization principles (1NF, 2NF, 3NF) - thick outline sketch style, educational data modeling reference\" decoding=\"async\" src=\"https:\/\/www.we-notes.com\/wp-content\/uploads\/2026\/04\/er-diagrams-business-rules-to-schema-infographic-hand-drawn.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83c\udfd7\ufe0f \u7406\u89e3\u6838\u5fc3\u5143\u4ef6<\/h2>\n<p>\u5be6\u9ad4\u95dc\u4fc2\u5716\u7531\u4e09\u500b\u57fa\u672c\u69cb\u6210\u8981\u7d20\u7d44\u6210\u3002\u6bcf\u500b\u8981\u7d20\u4ee3\u8868\u8cc7\u6599\u5132\u5b58\u8207\u95dc\u806f\u7684\u7279\u5b9a\u9762\u5411\u3002\u638c\u63e1\u9019\u4e9b\u5143\u4ef6\uff0c\u624d\u80fd\u5efa\u69cb\u51fa\u7b26\u5408\u7d44\u7e54\u9700\u6c42\u7684\u7a69\u56fa\u8cc7\u6599\u5eab\u3002<\/p>\n<ul>\n<li><strong>\u5be6\u9ad4\uff1a<\/strong> \u9019\u4e9b\u4ee3\u8868\u8cc7\u6599\u6536\u96c6\u6240\u91dd\u5c0d\u7684\u7269\u4ef6\u6216\u6982\u5ff5\u3002\u5728\u5546\u696d\u60c5\u5883\u4e2d\uff0c\u9019\u4e9b\u901a\u5e38\u662f\u540d\u8a5e\uff0c\u4f8b\u5982<em>\u5ba2\u6236<\/em>, <em>\u8a02\u55ae<\/em>\uff0c\u6216<em>\u7522\u54c1<\/em>\u3002\u5728\u8cc7\u6599\u7d50\u69cb\u4e2d\uff0c\u5be6\u9ad4\u6703\u8f49\u5316\u70ba\u8cc7\u6599\u8868\u3002<\/li>\n<li><strong>\u5c6c\u6027\uff1a<\/strong> \u9019\u4e9b\u63cf\u8ff0\u5be6\u9ad4\u7684\u7279\u6027\u3002\u7bc4\u4f8b\u5305\u62ec<em>\u540d\u7a31<\/em>, <em>\u50f9\u683c<\/em>\uff0c\u6216<em>\u65e5\u671f<\/em>\u3002\u5c6c\u6027\u6703\u8f49\u5316\u70ba\u5c0d\u61c9\u8cc7\u6599\u8868\u4e2d\u7684\u6b04\u4f4d\u3002<\/li>\n<li><strong>\u95dc\u4fc2\uff1a<\/strong> \u9019\u4e9b\u5b9a\u7fa9\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u806f\u3002\u95dc\u4fc2\u8868\u793a\u4e00\u500b\u5be6\u9ad4\u7684\u5be6\u4f8b\u5982\u4f55\u8207\u53e6\u4e00\u500b\u5be6\u9ad4\u7684\u5be6\u4f8b\u76f8\u9023\u3002\u5728\u8cc7\u6599\u5eab\u4e2d\uff0c\u95dc\u4fc2\u901a\u5e38\u900f\u904e\u7d22\u5f15\u4f86\u5f37\u5236\u57f7\u884c\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udd04 \u5c07\u5546\u696d\u898f\u5247\u8f49\u8b6f\u70ba\u8cc7\u6599\u7d50\u69cb\u5143\u4ef6<\/h2>\n<p>\u8cc7\u6599\u6a21\u578b\u4e2d\u6700\u95dc\u9375\u7684\u6b65\u9a5f\u662f\u8f49\u8b6f\u968e\u6bb5\u3002\u5546\u696d\u5229\u5bb3\u95dc\u4fc2\u4eba\u4ee5\u6d41\u7a0b\u8207\u653f\u7b56\u4f86\u8868\u9054\uff0c\u5de5\u7a0b\u5e2b\u5247\u4ee5\u8cc7\u6599\u8868\u8207\u7d04\u675f\u4f86\u6e9d\u901a\u3002\u6a21\u578b\u8a2d\u8a08\u8005\u5fc5\u9808\u626e\u6f14\u9019\u5169\u7a2e\u8a9e\u8a00\u4e4b\u9593\u7684\u7ffb\u8b6f\u8005\u3002<\/p>\n<p>\u8003\u616e\u4e00\u500b\u5546\u696d\u898f\u5247\uff1a<em>\u300c\u4e00\u540d\u54e1\u5de5\u53ef\u4ee5\u7ba1\u7406\u591a\u500b\u5c08\u6848\uff0c\u4f46\u6bcf\u500b\u5c08\u6848\u5fc5\u9808\u81f3\u5c11\u6709\u4e00\u540d\u7d93\u7406\u3002\u300d<\/em>\u9019\u8981\u5982\u4f55\u8f49\u5316\u70ba\u8cc7\u6599\u7d50\u69cb\uff1f<\/p>\n<ul>\n<li><strong>\u8b58\u5225\u5be6\u9ad4\uff1a<\/strong> <em>\u54e1\u5de5<\/em>\u8207<em>\u5c08\u6848<\/em>.<\/li>\n<li><strong>\u8b58\u5225\u95dc\u4fc2\uff1a<\/strong> <em>\u7ba1\u7406<\/em>.<\/li>\n<li><strong>\u5b9a\u7fa9\u57fa\u6578\uff1a<\/strong> \u4e00\u540d\u54e1\u5de5\u5c0d\u61c9\u591a\u500b\u5c08\u6848\uff081:N\uff09\u3002\u4e00\u500b\u5c08\u6848\u81f3\u5c11\u5c0d\u61c9\u4e00\u540d\u54e1\u5de5\uff081:1 \u6216 1:N\uff0c\u8996\u89e3\u91cb\u800c\u5b9a\uff09\u3002<\/li>\n<li><strong>\u5f37\u5236\u9078\u64c7\u6027\uff1a<\/strong> \u5c08\u6848 <em>\u5fc5\u9808<\/em> \u6709\u4e00\u540d\u7d93\u7406\u3002\u9019\u6703\u6210\u70ba\u5916\u9375\u4e0a\u7684 <strong>NOT NULL<\/strong> \u7d04\u675f\u3002<\/li>\n<\/ul>\n<p>\u6b64\u904e\u7a0b\u9700\u8981\u4ed4\u7d30\u5206\u6790\u696d\u52d9\u4f7f\u7528\u8005\u63d0\u4f9b\u7684\u81ea\u7136\u8a9e\u8a00\u3002\u6a21\u7cca\u6027\u662f\u8cc7\u6599\u5b8c\u6574\u6027\u7684\u6575\u4eba\u3002\u5982\u679c\u4e00\u9805\u898f\u5247\u6307\u51fa <em>\u201c\u9867\u5ba2\u53ef\u4ee5\u4e0b\u8a02\u55ae\u201d<\/em>\uff0c\u9019\u662f\u5426\u610f\u5473\u8457\u4ed6\u5011 <em>\u53ef\u4ee5<\/em> \u4e0b\u96f6\u500b\u8a02\u55ae\uff0c\u9084\u662f\u5fc5\u9808\u81f3\u5c11\u4e0b\u4e00\u500b\uff1f\u6b64\u5340\u5225\u6703\u6539\u8b8a\u5916\u9375\u7684\u5be6\u4f5c\u65b9\u5f0f\u3002<\/p>\n<h2>\ud83d\udccf \u57fa\u6578\u8207\u9078\u64c7\u6027<\/h2>\n<p>\u57fa\u6578\u5b9a\u7fa9\u4e86\u4e00\u500b\u5be6\u9ad4\u7684\u5be6\u4f8b\u8207\u53e6\u4e00\u500b\u5be6\u9ad4\u7684\u6bcf\u500b\u5be6\u4f8b\u4e4b\u9593\u53ef\u4ee5\u6216\u5fc5\u9808\u95dc\u806f\u7684\u6578\u91cf\u3002\u9019\u662f\u95dc\u4fc2\u7684\u6578\u5b78\u57fa\u790e\u3002<\/p>\n<h3>\u4e00\u5c0d\u4e00\uff081:1\uff09<\/h3>\n<p>\u7576\u4e00\u500b\u8868\u683c\u4e2d\u7684\u55ae\u4e00\u8a18\u9304\u8207\u53e6\u4e00\u500b\u8868\u683c\u4e2d\u7684\u55ae\u4e00\u8a18\u9304\u76f8\u95dc\u806f\u6642\uff0c\u5c31\u6703\u767c\u751f\u9019\u7a2e\u95dc\u4fc2\u3002\u9019\u5728\u70ba\u4e86\u5b89\u5168\u6216\u6548\u80fd\u8003\u91cf\u800c\u62c6\u5206\u8868\u683c\u6642\u5f88\u5e38\u898b\uff0c\u4f46\u5728\u4e00\u822c\u5546\u696d\u908f\u8f2f\u4e2d\u8f03\u4e0d\u5e38\u898b\u3002<\/p>\n<ul>\n<li><em>\u7bc4\u4f8b\uff1a<\/em> \u4e00\u500b\u4eba\u64c1\u6709\u4e00\u672c\u8b77\u7167\u3002\u4e00\u672c\u8b77\u7167\u5c6c\u65bc\u4e00\u500b\u4eba\u3002<\/li>\n<li><em>\u5be6\u4f5c\uff1a<\/em> \u5176\u4e2d\u4e00\u500b\u8868\u683c\u4e2d\u7684\u5916\u9375\uff0c\u53c3\u8003\u53e6\u4e00\u500b\u8868\u683c\u7684\u4e3b\u9375\u3002<\/li>\n<\/ul>\n<h3>\u4e00\u5c0d\u591a\uff081:N\uff09<\/h3>\n<p>\u9019\u662f\u95dc\u4fc2\u8cc7\u6599\u5eab\u4e2d\u6700\u5e38\u898b\u7684\u95dc\u4fc2\u985e\u578b\u3002Table A \u4e2d\u7684\u4e00\u7b46\u8a18\u9304\u8207 Table B \u4e2d\u7684\u591a\u7b46\u8a18\u9304\u76f8\u95dc\u806f\u3002Table B \u64c1\u6709\u5916\u9375\u3002<\/p>\n<ul>\n<li><em>\u7bc4\u4f8b\uff1a<\/em> \u4e00\u500b\u90e8\u9580\u6709\u8a31\u591a\u54e1\u5de5\u3002\u4e00\u540d\u54e1\u5de5\u5c6c\u65bc\u4e00\u500b\u90e8\u9580\u3002<\/li>\n<li><em>\u5be6\u65bd\uff1a<\/em> \u9019 <em>\u54e1\u5de5<\/em> \u8868\u5305\u542b\u4e00\u500b <em>\u90e8\u9580\u7de8\u865f<\/em> \u6b04\u4f4d\u3002<\/li>\n<\/ul>\n<h3>\u591a\u5c0d\u591a (M:N)<\/h3>\n<p>\u8868 A \u4e2d\u7684\u5169\u500b\u8a18\u9304\u53ef\u4ee5\u8207\u8868 B \u4e2d\u7684\u591a\u500b\u8a18\u9304\u76f8\u95dc\u806f\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u5728\u6a19\u6e96\u95dc\u4fc2\u6a21\u5f0f\u4e2d\uff0c\u82e5\u7121\u4e2d\u9593\u6b65\u9a5f\uff0c\u7121\u6cd5\u76f4\u63a5\u5be6\u73fe\u6b64\u985e\u95dc\u4fc2\u3002<\/p>\n<ul>\n<li><em>\u7bc4\u4f8b\uff1a<\/em> \u5b78\u751f\u8a3b\u518a\u8ab2\u7a0b\u3002\u4e00\u540d\u5b78\u751f\u9078\u4fee\u591a\u9580\u8ab2\u7a0b\u3002\u4e00\u9580\u8ab2\u7a0b\u6709\u8a31\u591a\u5b78\u751f\u3002<\/li>\n<li><em>\u5be6\u65bd\uff1a<\/em> \u5efa\u7acb\u4e00\u500b\u806f\u7d50\u8868\uff08\u95dc\u806f\u5be6\u9ad4\uff09\uff0c\u5176\u4e2d\u5305\u542b\u4f86\u81ea\u5169\u500b\u7236\u8868\u7684\u5916\u9375\u3002<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>\u95dc\u4fc2\u985e\u578b<\/th>\n<th>\u8996\u89ba\u7b26\u865f\uff08\u6982\u5ff5\uff09<\/th>\n<th>\u6a21\u5f0f\u5be6\u65bd<\/th>\n<th>\u5e38\u898b\u4f7f\u7528\u6848\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4e00\u5c0d\u4e00 (1:1)<\/td>\n<td>|\u2014|<\/td>\n<td>\u4efb\u4e00\u8868\u4e2d\u7684\u5916\u9375<\/td>\n<td>\u500b\u4eba \u2194 \u62a4\u7167<\/td>\n<\/tr>\n<tr>\n<td>\u4e00\u5c0d\u591a (1:N)<\/td>\n<td>|\u2014&lt;&lt;&lt;<\/td>\n<td>\u300c\u591a\u300d\u7aef\u8868\u4e2d\u7684\u5916\u9375<\/td>\n<td>\u90e8\u9580 \u2194 \u54e1\u5de5<\/td>\n<\/tr>\n<tr>\n<td>\u591a\u5c0d\u591a (M:N)<\/td>\n<td>&lt;&lt;&lt;\u2014&lt;&lt;&lt;<\/td>\n<td>\u5305\u542b\u5169\u500b\u5916\u9375\u7684\u806f\u7d50\u8868<\/td>\n<td>\u5b78\u751f \u2194 \u8ab2\u7a0b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ud83e\udde9 \u6b63\u898f\u5316\u539f\u5247<\/h2>\n<p>\u4e00\u65e6\u5be6\u9ad4\u548c\u95dc\u4fc2\u88ab\u5b9a\u7fa9\uff0c\u6a21\u5f0f\u5fc5\u9808\u9032\u884c\u6b63\u898f\u5316\u3002\u6b63\u898f\u5316\u662f\u4e00\u7a2e\u7cfb\u7d71\u5316\u7684\u65b9\u6cd5\uff0c\u7528\u65bc\u7d44\u7e54\u8cc7\u6599\u4ee5\u6e1b\u5c11\u5197\u9918\u4e26\u63d0\u5347\u8cc7\u6599\u5b8c\u6574\u6027\u3002\u5b83\u6d89\u53ca\u5c07\u8868\u683c\u5206\u89e3\u70ba\u66f4\u5c0f\u3001\u7d50\u69cb\u66f4\u6e05\u6670\u7684\u5143\u4ef6\u3002<\/p>\n<h3>\u7b2c\u4e00\u7bc4\u5f0f (1NF)<\/h3>\n<p>\u6bcf\u500b\u6b04\u4f4d\u5fc5\u9808\u5305\u542b\u539f\u5b50\u503c\u3002\u55ae\u5143\u683c\u5167\u4e0d\u61c9\u6709\u91cd\u8907\u7684\u7fa4\u7d44\u6216\u9663\u5217\u3002\u6bcf\u4e00\u5217\u5fc5\u9808\u662f\u552f\u4e00\u7684\u3002<\/p>\n<ul>\n<li><em>\u9055\u53cd\uff1a<\/em> \u4e00 <em>\u6280\u80fd<\/em> \u6b04\u4f4d\u5305\u542b <em>\u300cSQL\u3001Python\u3001Java\u300d<\/em> \u5728\u4e00\u500b\u55ae\u5143\u683c\u4e2d\u3002<\/li>\n<li><em>\u4fee\u6b63\uff1a<\/em> \u5c07\u6280\u80fd\u62c6\u5206\u5230\u4e00\u500b\u7531\u95dc\u4fc2\u9023\u7d50\u7684\u7368\u7acb\u8868\u683c\u4e2d\u3002<\/li>\n<\/ul>\n<h3>\u7b2c\u4e8c\u7bc4\u5f0f (2NF)<\/h3>\n<p>\u8868\u683c\u5fc5\u9808\u7b26\u5408 1NF\uff0c\u4e14\u6240\u6709\u975e\u9375\u5c6c\u6027\u5fc5\u9808\u5b8c\u5168\u4f9d\u8cf4\u65bc\u4e3b\u9375\u3002\u9019\u53ef\u6d88\u9664\u90e8\u5206\u4f9d\u8cf4\u3002<\/p>\n<ul>\n<li><em>\u60c5\u5883\uff1a<\/em> \u4e00\u500b\u7d50\u5408 <em>\u8a02\u55ae<\/em> \u548c <em>\u8a02\u55ae\u9805\u76ee<\/em> \u5176\u4e2d <em>\u7522\u54c1\u540d\u7a31<\/em> \u50c5\u4f9d\u8cf4\u65bc <em>\u9805\u76eeID<\/em>\uff0c\u800c\u975e <em>\u8a02\u55aeID<\/em>.<\/li>\n<li><em>\u4fee\u6b63\uff1a<\/em> \u79fb\u52d5 <em>\u7522\u54c1\u540d\u7a31<\/em> \u5230\u4e00\u500b <em>\u9805\u76ee<\/em> \u8868\u683c\u4e2d\u3002<\/li>\n<\/ul>\n<h3>\u7b2c\u4e09\u7bc4\u5f0f\uff083NF\uff09<\/h3>\n<p>\u8a72\u8868\u683c\u5fc5\u9808\u8655\u65bc\u7b2c\u4e8c\u7bc4\u5f0f\uff082NF\uff09\uff0c\u4e14\u4e0d\u5f97\u5b58\u5728\u50b3\u905e\u4f9d\u8cf4\u3002\u975e\u9375\u5c6c\u6027\u4e0d\u61c9\u4f9d\u8cf4\u65bc\u5176\u4ed6\u975e\u9375\u5c6c\u6027\u3002<\/p>\n<ul>\n<li><em>\u60c5\u5883\uff1a<\/em> \u4e00 <em>\u9867\u5ba2<\/em> \u8868\u683c\u5305\u542b <em>\u57ce\u5e02<\/em> \u548c <em>\u570b\u5bb6<\/em>\uff0c\u5176\u4e2d <em>\u570b\u5bb6<\/em> \u7531 <em>\u57ce\u5e02<\/em>.<\/li>\n<li><em>\u4fee\u6b63\uff1a<\/em> \u5efa\u7acb\u4e00\u500b <em>\u5730\u9ede<\/em> \u8868\u683c\u4f86\u5132\u5b58\u57ce\u5e02\u8207\u570b\u5bb6\u8cc7\u6599\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udee1\ufe0f 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\u6216\u81ea\u7136\u9375\u3002<\/p>\n<h3>\u5916\u9375<\/h3>\n<p>\u5916\u9375\u7dad\u6301\u53c3\u7167\u5b8c\u6574\u6027\u3002\u5b83\u78ba\u4fdd\u5b50\u8868\u683c\u4e2d\u7684\u8a18\u9304\u7121\u6cd5\u5728\u6c92\u6709\u5c0d\u61c9\u7236\u8868\u683c\u8a18\u9304\u7684\u60c5\u6cc1\u4e0b\u5b58\u5728\u3002\u9019\u53ef\u9632\u6b62\u51fa\u73fe\u5b64\u7acb\u8cc7\u6599\u3002<\/p>\n<ul>\n<li><strong>\u522a\u9664\u6642\u7d1a\u806f\uff1a<\/strong> \u5982\u679c\u522a\u9664\u7236\u8a18\u9304\uff0c\u5b50\u8a18\u9304\u6703\u81ea\u52d5\u522a\u9664\u3002<\/li>\n<li><strong>\u522a\u9664\u6642\u9650\u5236\uff1a<\/strong> \u82e5\u5b58\u5728\u5b50\u8a18\u9304\uff0c\u5247\u7981\u6b62\u522a\u9664\u7236\u8a18\u9304\u3002<\/li>\n<li><strong>\u522a\u9664\u6642\u8a2d\u70ba\u7a7a\u503c\uff1a<\/strong> 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\u8cc7\u6599\u6a21\u578b\u8a2d\u8a08\u4e2d\u7684\u5e38\u898b\u9677\u9631<\/h2>\n<p>\u5373\u4f7f\u7d93\u9a57\u8c50\u5bcc\u7684\u67b6\u69cb\u5e2b\u4e5f\u53ef\u80fd\u5ffd\u7565\u95dc\u9375\u7d30\u7bc0\u3002\u4e86\u89e3\u5e38\u898b\u932f\u8aa4\u6709\u52a9\u65bc\u8a2d\u8a08\u51fa\u66f4\u5177\u5f48\u6027\u7684\u7cfb\u7d71\u3002<\/p>\n<ul>\n<li><strong>\u904e\u5ea6\u898f\u7bc4\u5316\uff1a<\/strong>\u904e\u5ea6\u62c6\u5206\u8868\u683c\u6703\u5c0e\u81f4\u8907\u96dc\u7684\u9023\u63a5\u64cd\u4f5c\uff0c\u9032\u800c\u964d\u4f4e\u67e5\u8a62\u6548\u80fd\u3002\u6709\u6642\uff0c\u91dd\u5c0d\u8b80\u53d6\u5bc6\u96c6\u578b\u7684\u5de5\u4f5c\u8ca0\u8f09\uff0c\u5141\u8a31\u4e00\u5b9a\u7a0b\u5ea6\u7684\u975e\u898f\u7bc4\u5316\u662f\u53ef\u63a5\u53d7\u7684\u3002<\/li>\n<li><strong>\u5ffd\u7565\u8edf\u522a\u9664\uff1a<\/strong>\u5546\u696d\u898f\u5247\u901a\u5e38\u9700\u8981\u4fdd\u7559\u6b77\u53f2\u8cc7\u6599\u3002\u6c38\u4e45\u522a\u9664\u8a18\u9304\u6703\u5c0e\u81f4\u5be9\u8a08\u8ffd\u8e64\u4e2d\u65b7\u3002\u901a\u5e38\u9700\u8981\u4e00\u500b<em>IsDeleted<\/em>\u65d7\u6a19\u3002<\/li>\n<li><strong>\u5047\u8a2d\u552f\u4e00\u6027\uff1a<\/strong>\u50c5\u50c5\u56e0\u70ba\u5546\u696d\u898f\u5247\u6697\u793a\u552f\u4e00\u6027\uff08\u4f8b\u5982<em>\u96fb\u5b50\u90f5\u4ef6<\/em>\uff09\u4e26\u4e0d\u8868\u793a\u8cc7\u6599\u5eab\u6703\u5f37\u5236\u57f7\u884c\u3002\u5fc5\u9808\u660e\u78ba\u5b9a\u7fa9\u552f\u4e00\u6027\u7d04\u675f\u3002<\/li>\n<li><strong>\u5ffd\u7565\u6642\u9593\uff1a<\/strong>\u5927\u591a\u6578\u5546\u696d\u8cc7\u6599\u90fd\u5177\u6709\u6642\u9593\u7dad\u5ea6\u3002\u8a18\u9304\u8cc7\u6599<em>\u4f55\u6642<\/em>\u88ab\u5efa\u7acb\u6216\u66f4\u65b0\uff0c\u5c0d\u65bc\u5be9\u8a08\u8207\u9664\u932f\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<li><strong>\u786c\u7de8\u78bc\u503c\uff1a<\/strong>\u5728 SQL \u67e5\u8a62\u4e2d\u4f7f\u7528\u7279\u5b9a\u503c\uff0c\u800c\u975e\u53c3\u8003\u67e5\u95b1\u8868\uff0c\u6703\u4f7f\u7cfb\u7d71\u8b8a\u5f97\u50f5\u5316\u4e14\u96e3\u4ee5\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udd04 \u8fed\u4ee3\u5f0f\u8a2d\u8a08\u6d41\u7a0b<\/h2>\n<p>\u8cc7\u6599\u6a21\u578b\u8a2d\u8a08\u5f88\u5c11\u662f\u7dda\u6027\u7684\u904e\u7a0b\u3002\u5b83\u662f\u4e00\u500b\u8fed\u4ee3\u7684\u904e\u7a0b\u3002\u6700\u521d\u7684\u5716\u8868\u53ea\u662f\u4e00\u7a2e\u5047\u8a2d\uff0c\u5fc5\u9808\u6839\u64da\u5be6\u969b\u4f7f\u7528\u6a21\u5f0f\u548c\u53cd\u994b\u4f86\u9a57\u8b49\u3002<\/p>\n<ol>\n<li><strong>\u6982\u5ff5\u8a2d\u8a08\uff1a<\/strong>\u5c08\u6ce8\u65bc\u9ad8\u968e\u5be6\u9ad4\u8207\u95dc\u4fc2\u3002\u5ffd\u7565\u8cc7\u6599\u985e\u578b\u7b49\u6280\u8853\u7d30\u7bc0\u3002<\/li>\n<li><strong>\u908f\u8f2f\u8a2d\u8a08\uff1a<\/strong> \u6dfb\u52a0\u5c6c\u6027\uff0c\u5b9a\u7fa9\u8cc7\u6599\u985e\u578b\uff0c\u4e26\u5efa\u7acb\u9375\u3002\u6a19\u6e96\u5316\u7d50\u69cb\u3002<\/li>\n<li><strong>\u7269\u7406\u8a2d\u8a08\uff1a<\/strong> \u9069\u61c9\u7279\u5b9a\u8cc7\u6599\u5eab\u5f15\u64ce\u9032\u884c\u512a\u5316\u3002\u8003\u616e\u7d22\u5f15\u7b56\u7565\u3001\u5206\u5272\u8207\u5132\u5b58\u65b9\u5f0f\u3002<\/li>\n<li><strong>\u6aa2\u8996\uff1a<\/strong> \u8207\u5229\u5bb3\u95dc\u4fc2\u4eba\u5171\u540c\u9a57\u8b49\u6a21\u578b\u3002\u78ba\u4fdd\u5176\u80fd\u652f\u63f4\u672a\u4f86\u7684\u696d\u52d9\u6210\u9577\u3002<\/li>\n<\/ol>\n<p>\u5728\u6aa2\u8996\u968e\u6bb5\uff0c\u5e38\u6703\u767c\u73fe\u67d0\u500b\u95dc\u4fc2\u88ab\u8aa4\u89e3\u3002\u4f8b\u5982\uff0c\u4e00\u500b<em>\u591a\u5c0d\u591a<\/em>\u95dc\u4fc2\u5be6\u969b\u4e0a\u53ef\u80fd\u662f\u5c64\u7d1a\u7d50\u69cb\uff0c\u6216\u662f\u4e00\u9023\u4e32\u7684<em>\u4e00\u5c0d\u591a<\/em>\u95dc\u4fc2\uff0c\u4e00\u65e6\u63d0\u51fa\u66f4\u6df1\u5165\u7684\u554f\u984c\u5f8c\u4fbf\u6703\u986f\u73fe\u3002\u8a2d\u8a08\u968e\u6bb5\u7684\u5f48\u6027\u53ef\u5927\u5e45\u6e1b\u5c11\u5be6\u4f5c\u968e\u6bb5\u7684\u8017\u8cbb\u3002<\/p>\n<h2>\ud83d\udcc8 \u64f4\u5c55\u8207\u6f14\u9032<\/h2>\n<p>\u8cc7\u6599\u7d50\u69cb\u6703\u6f14\u9032\uff0c\u9700\u6c42\u6703\u6539\u8b8a\u3002\u4eca\u5929\u9069\u7528\u7684\uff0c\u660e\u5929\u53ef\u80fd\u4e0d\u518d\u9069\u7528\u3002\u4e00\u500b\u8a2d\u8a08\u826f\u597d\u7684ER\u5716\u80fd\u9810\u898b\u6210\u9577\u3002<\/p>\n<ul>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong> \u907f\u514d\u5c07\u7279\u5b9a\u529f\u80fd\u786c\u7de8\u78bc\u81f3\u8cc7\u6599\u7d50\u69cb\u4e2d\u3002\u5c0d\u65bc\u9ad8\u5ea6\u52d5\u614b\u7684\u9700\u6c42\uff0c\u9069\u7576\u5730\u4f7f\u7528\u901a\u7528\u8868\u683c\u6216\u5c6c\u6027\u6a21\u5f0f\uff08\u5982EAV\uff09\u3002<\/li>\n<li><strong>\u7248\u672c\u63a7\u5236\uff1a<\/strong> \u8a18\u9304\u8cc7\u6599\u7d50\u69cb\u7684\u8b8a\u66f4\u3002\u9077\u79fb\u8173\u672c\u61c9\u8207\u61c9\u7528\u7a0b\u5f0f\u7a0b\u5f0f\u78bc\u4e00\u540c\u9032\u884c\u7248\u672c\u63a7\u5236\u3002<\/li>\n<li><strong>\u6587\u4ef6\u5316\uff1a<\/strong> 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