{"id":1518,"date":"2026-03-23T03:57:41","date_gmt":"2026-03-23T03:57:41","guid":{"rendered":"https:\/\/www.ez-knowledge.com\/tw\/modeling-hierarchical-data-er-diagrams\/"},"modified":"2026-03-23T03:57:41","modified_gmt":"2026-03-23T03:57:41","slug":"modeling-hierarchical-data-er-diagrams","status":"publish","type":"post","link":"https:\/\/www.ez-knowledge.com\/tw\/modeling-hierarchical-data-er-diagrams\/","title":{"rendered":"\u5728\u6a19\u6e96ER\u5716\u4e2d\u5efa\u6a21\u5c64\u6b21\u6578\u64da"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Hand-drawn infographic comparing three approaches for modeling hierarchical data in ER diagrams: Adjacency List (parent_id self-reference), Nested Sets (lft\/rgt interval values), and Materialized Path (stored path strings). Visual comparison includes schema examples, pros\/cons icons, performance metrics table, and a decision flowchart to help developers choose the right pattern based on read\/write needs and hierarchy depth.\" decoding=\"async\" src=\"https:\/\/www.ez-knowledge.com\/wp-content\/uploads\/2026\/03\/hierarchical-data-er-diagram-models-infographic.jpg\"\/><\/figure>\n<\/div>\n<p>\u95dc\u4fc2\u578b\u8cc7\u6599\u5eab\u5efa\u7acb\u5728\u8868\u683c\u548c\u8cc7\u6599\u5217\u7684\u57fa\u790e\u4e0a\uff0c\u9019\u7a2e\u7d50\u69cb\u662f\u70ba\u5e73\u9762\u6578\u64da\u8a2d\u8a08\u7684\u3002\u7136\u800c\uff0c\u73fe\u5be6\u4e16\u754c\u5f88\u5c11\u9075\u5faa\u5982\u6b64\u7c21\u55ae\u7684\u6a21\u5f0f\u3002\u7d44\u7e54\u3001\u6a94\u6848\u7cfb\u7d71\u3001\u8a55\u8ad6\u4e32\u5217\u548c\u5206\u985e\u6a39\u90fd\u5b58\u5728\u65bc<strong>\u5c64\u6b21\u7d50\u69cb<\/strong>\u3002\u5728\u6a19\u6e96\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u4e2d\u8868\u793a\u9019\u4e9b\u7236\u5b50\u95dc\u4fc2\uff0c\u9700\u8981\u7279\u5b9a\u7684\u8a2d\u8a08\u6a21\u5f0f\uff0c\u4ee5\u5728\u7dad\u6301\u8cc7\u6599\u5b8c\u6574\u6027\u4e4b\u9918\uff0c\u5be6\u73fe\u9ad8\u6548\u6aa2\u7d22\u3002<\/p>\n<p>\u7576\u4f60\u8a66\u5716\u5c07\u6a39\u72c0\u7d50\u69cb\u6620\u5c04\u5230\u5e73\u9762\u7d50\u69cb\u6642\uff0c\u6703\u9047\u5230\u898f\u7bc4\u5316\u8207\u6548\u80fd\u4e4b\u9593\u7684\u7d93\u5178\u77db\u76fe\u3002\u672c\u6307\u5357\u63a2\u8a0e\u4e86\u5efa\u6a21\u5c64\u6b21\u6578\u64da\u7684\u6838\u5fc3\u6280\u8853\uff0c\u8a55\u4f30\u6bcf\u7a2e\u65b9\u6cd5\u7684\u53d6\u6368\uff0c\u4ee5\u5354\u52a9\u4f60\u8a2d\u8a08\u7a69\u5065\u7684\u7cfb\u7d71\u3002<\/p>\n<h2>\ud83e\udde9 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\u5728\u5b50\u8a18\u9304\u4e2d\u5132\u5b58\u7236\u7bc0\u9ede\u7684ID\u3002<\/li>\n<li><strong>\u5de2\u72c0\u96c6\u5408\uff1a<\/strong> \u70ba\u5b9a\u7fa9\u7bc4\u570d\u800c\u5206\u914d\u5de6\u503c\u548c\u53f3\u503c\u3002<\/li>\n<li><strong>\u8def\u5f91\u679a\u8209\uff1a<\/strong> \u5132\u5b58\u5f9e\u6839\u7bc0\u9ede\u5230\u76ee\u524d\u7bc0\u9ede\u7684\u5b8c\u6574\u8def\u5f91\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udd17 \u9130\u63a5\u6e05\u55ae\u6a21\u578b<\/h2>\n<p>\u9130\u63a5\u6e05\u55ae\u662f\u6a19\u6e96ERD\u4e2d\u8868\u793a\u5c64\u6b21\u7d50\u69cb\u6700\u5e38\u898b\u4e14\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u3002\u5b83\u4f9d\u8cf4\u65bc\u81ea\u6211\u5f15\u7528\u7684\u95dc\u4fc2\u3002\u9019\u8868\u793a\u55ae\u4e00\u8868\u683c\u4e2d\u5305\u542b\u4e00\u500b\u6b04\u4f4d\uff0c\u5f15\u7528\u5176\u81ea\u8eab\u7684\u4e3b\u9375\u3002<\/p>\n<h3>\ud83d\udcd0 \u8cc7\u6599\u7d50\u69cb<\/h3>\n<p>\u5728\u6b64\u6a21\u578b\u4e2d\uff0c\u4f60\u5efa\u7acb\u55ae\u4e00\u8868\u683c\u4f86\u5132\u5b58\u8cc7\u6599\u3002\u6bcf\u4e00\u5217\u4ee3\u8868\u6a39\u4e2d\u7684\u7bc0\u9ede\u3002\u95dc\u9375\u7684\u65b0\u589e\u6b04\u4f4d\u901a\u5e38\u547d\u540d\u70ba<code>parent_id<\/code>\u6216<code>ancestor_id<\/code>\uff0c\u7528\u4f86\u5132\u5b58\u7236\u7bc0\u9ede\u7684\u552f\u4e00\u8b58\u5225\u78bc\u3002\u82e5\u7bc0\u9ede\u4f4d\u65bc\u5c64\u6b21\u7d50\u69cb\u7684\u9802\u7aef\uff0c\u6b64\u6b04\u4f4d\u5247\u5305\u542b\u7a7a\u503c\u3002<\/p>\n<p>\u8003\u616e\u4e00\u500b\u7528\u65bc<code>\u90e8\u9580<\/code>:<\/p>\n<ul>\n<li><strong>id\uff1a<\/strong> \u90e8\u9580\u7684\u552f\u4e00\u4e3b\u9375\u3002<\/li>\n<li><strong>name\uff1a<\/strong> \u90e8\u9580\u7684\u986f\u793a\u540d\u7a31\u3002<\/li>\n<li><strong>parent_id\uff1a<\/strong> \u4e0a\u7d1a\u90e8\u9580\u7684ID\uff08\u9802\u5c64\u70ba\u53ef\u7a7a\uff09\u3002<\/li>\n<\/ul>\n<h3>\u2705 \u512a\u9ede<\/h3>\n<ul>\n<li><strong>\u7c21\u55ae\u6027\uff1a<\/strong> \u8a72\u8cc7\u6599\u7d50\u69cb\u76f4\u89c0\u4e14\u5c0d\u958b\u767c\u4eba\u54e1\u548c\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u800c\u8a00\u5bb9\u6613\u7406\u89e3\u3002<\/li>\n<li><strong>\u5f48\u6027\uff1a<\/strong>\u79fb\u52d5\u5b50\u6a39\u975e\u5e38\u7c21\u55ae\uff1b\u60a8\u53ea\u9700\u66f4\u65b0<code>parent_id<\/code>\u8a72\u5b50\u6a39\u6839\u7bc0\u9ede\u7684\u3002<\/li>\n<li><strong>\u898f\u7bc4\u5316\uff1a<\/strong> \u7531\u65bc\u8cc7\u6599\u4e0d\u6703\u91cd\u8907\uff0c\u56e0\u6b64\u80fd\u5f88\u597d\u5730\u7b26\u5408\u7b2c\u4e09\u7bc4\u5f0f\uff083NF\uff09\u3002<\/li>\n<\/ul>\n<h3>\u274c \u7f3a\u9ede<\/h3>\n<ul>\n<li><strong>\u67e5\u8a62\u8907\u96dc\u5ea6\uff1a<\/strong> \u6aa2\u7d22\u6240\u6709\u5f8c\u4ee3\u7bc0\u9ede\u9700\u8981\u905e\u8ff4\u67e5\u8a62\u6216\u61c9\u7528\u5c64\u8655\u7406\u3002<\/li>\n<li><strong>\u6548\u80fd\uff1a<\/strong> \u82e5\u7121\u7279\u5b9a\u7d22\u5f15\u7b56\u7565\u6216\u905e\u8ff4\u516c\u7528\u8868\u8868\u9054\u5f0f\uff08CTEs\uff09\uff0c\u6df1\u5ea6\u904d\u6b77\u53ef\u80fd\u8f03\u6162\u3002<\/li>\n<li><strong>\u53c3\u8003\u5b8c\u6574\u6027\uff1a<\/strong> \u96d6\u7136\u5916\u9375\u6709\u52a9\u65bc\u7dad\u8b77\uff0c\u4f46\u5982\u679c\u7d04\u675f\u672a\u56b4\u683c\u57f7\u884c\uff0c\u4ecd\u53ef\u80fd\u51fa\u73fe\u5faa\u74b0\u5f15\u7528\u3002<\/li>\n<\/ul>\n<h2>\ud83c\udf32 \u5167\u5d4c\u96c6\u5408\u6a21\u578b<\/h2>\n<p>\u5167\u5d4c\u96c6\u5408\u6a21\u578b\u5c07\u6a39\u72c0\u7d50\u69cb\u8f49\u63db\u70ba\u4e00\u7d44\u5340\u9593\u3002\u8207\u8ffd\u8e64\u7236\u7bc0\u9ede\u6307\u6a19\u4e0d\u540c\uff0c\u6bcf\u500b\u7bc0\u9ede\u6703\u88ab\u5206\u914d\u5169\u500b\u6578\u5b57\uff1a<code>left<\/code> \u548c <code>right<\/code>\u3002\u9019\u4e9b\u503c\u4ee3\u8868\u7bc0\u9ede\u5728\u6a39\u7684\u524d\u5e8f\u904d\u6b77\u4e2d\u7684\u4f4d\u7f6e\u3002<\/p>\n<h3>\ud83d\udcd0 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\u82e5\u7121\u5c08\u7528\u7a0b\u5f0f\u5eab\u652f\u63f4\uff0c\u6b64\u908f\u8f2f\u96e3\u4ee5\u5be6\u4f5c\u8207\u9664\u932f\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udee3\ufe0f \u8def\u5f91\u679a\u8209\u8207\u7269\u5316\u8def\u5f91<\/h2>\n<p>\u8def\u5f91\u679a\u8209\u65b9\u6cd5\u5c07\u7bc0\u9ede\u7684\u8840\u7d71\u5132\u5b58\u70ba\u5b57\u4e32\u6216\u4ee5\u5206\u9694\u7b26\u865f\u5206\u9694\u7684\u6e05\u55ae\u3002\u9019\u7a2e\u65b9\u6cd5\u901a\u5e38\u7a31\u70ba\u7269\u5316\u8def\u5f91\u6a21\u5f0f\u3002\u5b83\u7d50\u5408\u4e86\u9130\u63a5\u6e05\u55ae\u7684\u7c21\u55ae\u6027\u8207\u8def\u5f91\u7684\u53ef\u8b80\u6027\u3002<\/p>\n<h3>\ud83d\udcd0 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<code>\u8def\u5f91<\/code>\u6b04\u4f4d\u3002\u6839\u64da\u8cc7\u6599\u5eab\u7684\u4e0d\u540c\uff0c\u524d\u7db4\u7d22\u5f15\u53ef\u80fd\u6709\u5229\u65bc\u904e\u6ffe\u5b50\u6a39\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f \u7dad\u8b77\u8207\u66f4\u65b0<\/h2>\n<p>\u8cc7\u6599\u6a21\u578b\u4e26\u975e\u975c\u614b\u7684\u3002\u96a8\u8457\u60a8\u7684\u7d44\u7e54\u64f4\u5f35\uff0c\u60a8\u7684\u5c64\u7d1a\u7d50\u69cb\u5c07\u6703\u6539\u8b8a\u3002\u5c07\u4e00\u500b\u7bc0\u9ede\u5f9e\u4e00\u500b\u5206\u652f\u79fb\u52d5\u5230\u53e6\u4e00\u500b\u5206\u652f\u662f\u4e00\u9805\u5e38\u898b\u7684\u64cd\u4f5c\uff0c\u4f46\u5c0d\u6bcf\u500b\u6a21\u578b\u7684\u5f71\u97ff\u5404\u4e0d\u76f8\u540c\u3002<\/p>\n<h3>\ud83d\udd04 \u79fb\u52d5\u7bc0\u9ede<\/h3>\n<p>\u5728 <strong>\u9130\u63a5\u6e05\u55ae<\/strong>\u4e2d\uff0c\u79fb\u52d5\u4e00\u500b\u7bc0\u9ede\u50c5\u9700\u55ae\u4e00\u66f4\u65b0\u8a9e\u53e5\u3002\u60a8\u53ea\u9700\u66f4\u6539\u5b50\u6a39\u6839\u7bc0\u9ede\u7684 <code>parent_id<\/code>\u503c\u3002\u7136\u800c\uff0c\u60a8\u5fc5\u9808\u78ba\u4fdd\u4e0d\u6703\u7522\u751f\u5faa\u74b0\u5f15\u7528\u3002<\/p>\n<p>\u5728 <strong>\u5d4c\u5957\u96c6\u5408<\/strong>\u6a21\u578b\u4e2d\uff0c\u79fb\u52d5\u4e00\u500b\u7bc0\u9ede\u76f8\u7576\u8907\u96dc\u3002\u9019\u9700\u8981\u91cd\u65b0\u8a08\u7b97\u6240\u6709\u4f4d\u65bc\u76ee\u6a19\u5b50\u6a39\u4e2d\u7684\u7bc0\u9ede\u7684 <code>lft<\/code> \u548c <code>rgt<\/code>\u503c\uff0c\u70ba\u79fb\u52d5\u7684\u7bc0\u9ede\u9a30\u51fa\u7a7a\u9593\u3002\u9019\u901a\u5e38\u662f\u4e00\u500b\u6d89\u53ca\u591a\u500b\u8868\u683c\u66f4\u65b0\u7684\u4ea4\u6613\u64cd\u4f5c\u3002<\/p>\n<p>\u5728 <strong>\u7269\u5316\u8def\u5f91<\/strong>\u6a21\u578b\u4e2d\uff0c\u60a8\u9700\u66f4\u65b0\u79fb\u52d5\u7bc0\u9ede\u53ca\u5176\u6240\u6709\u5f8c\u4ee3\u7684\u8def\u5f91\u5b57\u4e32\u3002\u9019\u9700\u8981\u70ba\u6bcf\u500b\u5b50\u7bc0\u9ede\u66f4\u65b0\u8def\u5f91\uff0c\u5c0d\u65bc\u5927\u578b\u6a39\u7d50\u69cb\u800c\u8a00\uff0c\u9019\u53ef\u80fd\u662f\u4e00\u9805\u7e41\u91cd\u7684\u5beb\u5165\u64cd\u4f5c\u3002<\/p>\n<h2>\ud83c\udfaf \u8cc7\u6599\u6a21\u578b\u8a2d\u8a08\u7684\u6700\u4f73\u5be6\u52d9<\/h2>\n<p>\u70ba\u78ba\u4fdd\u60a8\u7684\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u4fdd\u6301\u53ef\u7dad\u8b77\u4e14\u9ad8\u6548\uff0c\u5be6\u65bd\u5c64\u7d1a\u7d50\u69cb\u6642\u8acb\u9075\u5faa\u4ee5\u4e0b\u6307\u5357\u3002<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u660e\u78ba\u7684\u547d\u540d\u898f\u7bc4\uff1a<\/strong> \u907f\u514d\u4f7f\u7528\u50cf\u9019\u6a23\u7684\u901a\u7528\u540d\u7a31<code>col1<\/code>\u3002\u8acb\u4f7f\u7528<code>parent_id<\/code>, <code>ancestor_id<\/code>, 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\u67d0\u4e9b\u7cfb\u7d71\u7d50\u5408\u9130\u63a5\u6e05\u55ae\u8207\u7269\u5316\u8def\u5f91\uff0c\u4ee5\u5e73\u8861\u8b80\u53d6\u548c\u5beb\u5165\u6548\u80fd\u3002<\/li>\n<\/ul>\n<h2>\ud83e\udde0 \u9078\u64c7\u6b63\u78ba\u7684\u7b56\u7565<\/h2>\n<p>\u4e26\u975e\u6bcf\u500b\u60c5\u5883\u90fd\u6709\u55ae\u4e00\u7684\u300c\u6b63\u78ba\u300d\u7b54\u6848\u3002\u6c7a\u7b56\u53d6\u6c7a\u65bc\u60a8\u61c9\u7528\u7a0b\u5f0f\u7684\u5177\u9ad4\u9700\u6c42\u3002<\/p>\n<ul>\n<li><strong>\u82e5\u7b26\u5408\u4ee5\u4e0b\u60c5\u6cc1\uff0c\u8acb\u9078\u64c7\u9130\u63a5\u6e05\u55ae\uff1a<\/strong> \u60a8\u7684\u8cc7\u6599\u7d93\u5e38\u8b8a\u52d5\uff0c\u4e14\u5c64\u6b21\u6df1\u5ea6\u9069\u4e2d\u3002\u9019\u5c0d\u65bc\u5927\u591a\u6578\u901a\u7528\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\u662f\u6700\u5b89\u5168\u7684\u9810\u8a2d\u9078\u64c7\u3002<\/li>\n<li><strong>\u82e5\u7b26\u5408\u4ee5\u4e0b\u60c5\u6cc1\uff0c\u8acb\u9078\u64c7\u5de2\u72c0\u96c6\u5408\uff1a<\/strong> 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