{"id":9986,"date":"2026-01-10T08:02:26","date_gmt":"2026-01-10T00:02:26","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/tw\/beginners-guide-to-entity-relationship-er-diagrams\/"},"modified":"2026-01-10T08:02:26","modified_gmt":"2026-01-10T00:02:26","slug":"beginners-guide-to-entity-relationship-er-diagrams","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/tw\/beginners-guide-to-entity-relationship-er-diagrams\/","title":{"rendered":"\u5be6\u9ad4-\u95dc\u4fc2\uff08ER\uff09\u5716\u7684\u5165\u9580\u6307\u5357"},"content":{"rendered":"<h2>\u4ecb\u7d39<\/h2>\n<p>\u5be6\u9ad4-\u95dc\u4fc2\uff08ER\uff09\u5716\u662f\u8cc7\u6599\u5eab\u8a2d\u8a08\u4e2d\u7528\u4f86\u8996\u89ba\u5316\u548c\u5efa\u6a21\u8cc7\u6599\u5eab\u7cfb\u7d71\u4e2d\u5be6\u9ad4\u4e4b\u9593\u95dc\u4fc2\u7684\u5f37\u5927\u5de5\u5177\u3002ER \u5716\u6709\u52a9\u65bc\u60a8\u7406\u89e3\u8cc7\u6599\u5eab\u7684\u7d50\u69cb\u4ee5\u53ca\u4e0d\u540c\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u806f\u65b9\u5f0f\u3002\u672c\u5165\u9580\u6307\u5357\u5c07\u4ecb\u7d39 ER \u5716\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u4e26\u900f\u904e Visual Paradigm Online\uff08\u4e00\u6b3e\u6d41\u884c\u7684\u5716\u8868\u5de5\u5177\uff09\u63d0\u4f9b\u7684\u5927\u91cf\u7bc4\u672c\uff0c\u793a\u7bc4\u5982\u4f55\u900f\u904e\u7bc4\u4f8b\u4f86\u5b78\u7fd2\u3002<\/p>\n<h2>1. \u4ec0\u9ebc\u662f ER \u5716\uff1f<\/h2>\n<p>ER \u5716\u662f\u8cc7\u6599\u5eab\u7d50\u69cb\u7684\u8996\u89ba\u5316\u8868\u793a\uff0c\u7528\u4ee5\u5448\u73fe\u8cc7\u6599\u5eab\u4e2d\u7684\u5be6\u9ad4\u3001\u5c6c\u6027\u548c\u95dc\u4fc2\u3002\u5b83\u6709\u52a9\u65bc\u8cc7\u6599\u5eab\u8a2d\u8a08\u5e2b\u3001\u958b\u767c\u4eba\u54e1\u548c\u76f8\u95dc\u5229\u76ca\u8005\u7406\u89e3\u8cc7\u6599\u5eab\u7cfb\u7d71\u7684\u7d50\u69cb\u8207\u884c\u70ba\u3002<\/p>\n<p><img alt=\"Online ERD Tool\" decoding=\"async\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/01-online-erd-tool.png\"\/><\/p>\n<h2>2. ER \u5716\u7684\u7d44\u6210\u90e8\u5206<\/h2>\n<p>ER \u5716\u7531\u4ee5\u4e0b\u4e3b\u8981\u7d44\u6210\u90e8\u5206\u69cb\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u5be6\u9ad4\uff1a<\/strong>\u4ee3\u8868\u73fe\u5be6\u4e16\u754c\u4e2d\u7684\u7269\u4ef6\u6216\u6982\u5ff5\uff0c\u4f8b\u5982\u5ba2\u6236\u3001\u7522\u54c1\u6216\u54e1\u5de5\u3002<\/li>\n<li><strong>\u5c6c\u6027\uff1a<\/strong>\u63cf\u8ff0\u5be6\u9ad4\u7684\u6027\u8cea\u6216\u7279\u5fb5\uff0c\u4f8b\u5982\u5ba2\u6236\u7684\u59d3\u540d\u6216\u7522\u54c1\u7684\u50f9\u683c\u3002<\/li>\n<li><strong>\u95dc\u4fc2\uff1a<\/strong>\u5c55\u793a\u5be6\u9ad4\u4e4b\u9593\u5982\u4f55\u76f8\u4e92\u9023\u63a5\u6216\u95dc\u806f\u3002<\/li>\n<\/ul>\n<h2>3. \u5be6\u9ad4\u7684\u985e\u578b<\/h2>\n<p>ER \u5716\u4e2d\u6709\u4e09\u7a2e\u4e3b\u8981\u5be6\u9ad4\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>\u5f37\u5be6\u9ad4\uff1a<\/strong>\u4e00\u7a2e\u53ef\u7368\u7acb\u5b58\u5728\u7684\u5be6\u9ad4\uff0c\u4ee5\u77e9\u5f62\u8868\u793a\u3002<\/li>\n<li><strong>\u5f31\u5be6\u9ad4\uff1a<\/strong>\u4e00\u7a2e\u4f9d\u8cf4\u53e6\u4e00\u500b\u5be6\u9ad4\uff08\u7a31\u70ba\u7236\u5be6\u9ad4\uff09\u5b58\u5728\u800c\u5b58\u5728\u7684\u5be6\u9ad4\uff0c\u4ee5\u96d9\u7dda\u77e9\u5f62\u8868\u793a\u3002<\/li>\n<li><strong>\u95dc\u806f\u5be6\u9ad4\uff1a<\/strong>\u4e00\u7a2e\u7528\u4f86\u8868\u793a\u5169\u500b\u5176\u4ed6\u5be6\u9ad4\u4e4b\u9593\u591a\u5c0d\u591a\u95dc\u4fc2\u7684\u5be6\u9ad4\u3002<\/li>\n<\/ul>\n<h2>4. ER \u5716\u4e2d\u7684\u95dc\u4fc2<\/h2>\n<p>\u95dc\u4fc2\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u806f\u65b9\u5f0f\u3002\u5e38\u898b\u7684\u95dc\u4fc2\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u4e00\u5bf9\u4e00\uff081:1\uff09\uff1a<\/strong>\u4e00\u500b\u96c6\u5408\u4e2d\u7684\u55ae\u4e00\u5be6\u9ad4\u8207\u53e6\u4e00\u500b\u96c6\u5408\u4e2d\u7684\u55ae\u4e00\u5be6\u9ad4\u76f8\u95dc\u806f\u3002<\/li>\n<li><strong>\u4e00\u5bf9\u591a\uff081:N\uff09\uff1a<\/strong>\u4e00\u500b\u96c6\u5408\u4e2d\u7684\u55ae\u4e00\u5be6\u9ad4\u8207\u53e6\u4e00\u500b\u96c6\u5408\u4e2d\u7684\u591a\u500b\u5be6\u9ad4\u76f8\u95dc\u806f\u3002<\/li>\n<li><strong>\u591a\u5c0d\u4e00\uff08N:1\uff09\uff1a<\/strong>\u4e00\u500b\u96c6\u5408\u4e2d\u7684\u591a\u500b\u5be6\u9ad4\u8207\u53e6\u4e00\u500b\u96c6\u5408\u4e2d\u7684\u55ae\u4e00\u5be6\u9ad4\u76f8\u95dc\u806f\u3002<\/li>\n<li><strong>\u591a\u5c0d\u591a\uff08N:N\uff09\uff1a<\/strong> \u4e00\u500b\u96c6\u5408\u4e2d\u7684\u591a\u500b\u5be6\u9ad4\u8207\u53e6\u4e00\u500b\u96c6\u5408\u4e2d\u7684\u591a\u500b\u5be6\u9ad4\u76f8\u95dc\u806f\u3002<\/li>\n<\/ul>\n<h2>5. \u5c6c\u6027<\/h2>\n<p>\u5c6c\u6027\u63d0\u4f9b\u6709\u95dc\u5be6\u9ad4\u7684\u984d\u5916\u8cc7\u8a0a\u3002\u5b83\u5011\u53ef\u4ee5\u5206\u70ba\u5404\u7a2e\u985e\u578b\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u7c21\u55ae\u5c6c\u6027\uff1a<\/strong> \u8868\u793a\u5be6\u9ad4\u7684\u55ae\u4e00\u503c\u3002<\/li>\n<li><strong>\u8907\u5408\u5c6c\u6027\uff1a<\/strong> \u5305\u542b\u591a\u500b\u7c21\u55ae\u5c6c\u6027\u3002<\/li>\n<li><strong>\u884d\u751f\u5c6c\u6027\uff1a<\/strong> \u53ef\u4ee5\u5f9e\u5176\u4ed6\u5c6c\u6027\u8a08\u7b97\u5f97\u51fa\u3002<\/li>\n<li><strong>\u591a\u503c\u5c6c\u6027\uff1a<\/strong> \u70ba\u55ae\u4e00\u5be6\u9ad4\u5132\u5b58\u591a\u500b\u503c\u3002<\/li>\n<li><strong>\u95dc\u9375\u5c6c\u6027\uff1a<\/strong> \u5728\u5176\u96c6\u5408\u4e2d\u552f\u4e00\u8b58\u5225\u4e00\u500b\u5be6\u9ad4\u3002<\/li>\n<\/ul>\n<h2>6. \u57fa\u6578<\/h2>\n<p>\u57fa\u6578\u8868\u793a\u53c3\u8207\u95dc\u4fc2\u7684\u5be6\u9ad4\u6578\u91cf\u3002\u5b83\u4ee5\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u8868\u793a\uff0c\u901a\u5e38\u5beb\u4f5c\uff08\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff09\u3002<\/p>\n<h2>7. \u5be6\u4f8b\u5be6\u9ad4\u95dc\u4fc2\u5716<\/h2>\n<p>\u8b93\u6211\u5011\u70ba\u5716\u66f8\u9928\u7ba1\u7406\u7cfb\u7d71\u5efa\u7acb\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u9ad4\u95dc\u4fc2\u5716\uff1a<\/p>\n<ul>\n<li>\u5be6\u9ad4\uff1a<code>\u66f8\u7c4d<\/code>, <code>\u4f5c\u8005<\/code>, <code>\u5716\u66f8\u9928<\/code>, <code>\u501f\u95b1\u8005<\/code><\/li>\n<li>\u95dc\u4fc2\uff1a<code>\u4f5c\u8005\u64b0\u5beb\u66f8\u7c4d<\/code>, <code>\u66f8\u7c4d\u4f4d\u65bc\u5716\u66f8\u9928\u4e2d<\/code>, <code>\u501f\u95b1\u8005\u501f\u66f8<\/code><\/li>\n<\/ul>\n<h2>8. \u4f7f\u7528 Visual Paradigm Online \u6a21\u677f\u5b78\u7fd2<\/h2>\n<p><a href=\"http:\/\/online.visual-paradigm.com\">Visual Paradigm Online<\/a> \u63d0\u4f9b\u5927\u91cf <a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/templates\/entity-relationship-diagram\/data-field-entity-relationship-diagram\/\">ER\u5716\u6a21\u677f<\/a> \u4ee5\u7bc4\u4f8b\u5e6b\u52a9\u60a8\u5b78\u7fd2\u3002\u4ee5\u4e0b\u662f\u958b\u59cb\u7684\u65b9\u6cd5\uff1a<\/p>\n<p id=\"CfFgEwc\"><img alt=\"\" class=\"alignnone size-full wp-image-20438\" decoding=\"async\" height=\"465\" loading=\"lazy\" sizes=\"auto, (max-width: 1121px) 100vw, 1121px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650bd238d03c8.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650bd238d03c8.png 1121w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650bd238d03c8-300x124.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650bd238d03c8-1030x427.png 1030w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650bd238d03c8-768x319.png 768w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650bd238d03c8-150x62.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650bd238d03c8-400x166.png 400w\" width=\"1121\"\/><\/p>\n<ol>\n<li><strong>\u8a3b\u518a\uff1a<\/strong> \u5728 Visual Paradigm Online \u5efa\u7acb\u514d\u8cbb\u5e33\u6236\u3002<\/li>\n<li><strong>\u9078\u64c7\u4e00\u500b\u6a21\u677f\uff1a<\/strong> \u6d4f\u89c8\u6a21\u677f\u5e93\u4e2d\u7684 ER \u5716\u7bc4\u4f8b\u3002\u60a8\u53ef\u4ee5\u627e\u5230\u92b7\u552e\u3001\u5eab\u5b58\u7b49\u4e0d\u540c\u9818\u57df\u7684\u6a21\u677f\u3002<\/li>\n<li><strong>\u81ea\u8a02\uff1a<\/strong> \u9078\u64c7\u9069\u5408\u60a8\u9700\u6c42\u7684\u6a21\u677f\uff0c\u4e26\u900f\u904e\u65b0\u589e\u6216\u4fee\u6539\u5be6\u9ad4\u3001\u5c6c\u6027\u548c\u95dc\u4fc2\u4f86\u9032\u884c\u81ea\u8a02\u3002<\/li>\n<li><strong>\u5b78\u7fd2\uff1a<\/strong> \u7814\u7a76\u5716\u5f62\u7684\u7d50\u69cb\u4ee5\u53ca\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u3002\u6ce8\u610f\u5c6c\u6027\u5b9a\u7fa9\u548c\u57fa\u6578\u3002<\/li>\n<li><strong>\u7df4\u7fd2\uff1a<\/strong> \u6839\u64da\u60a8\u5f9e\u6a21\u677f\u4e2d\u5b78\u5230\u7684\u5167\u5bb9\uff0c\u5617\u8a66\u5f9e\u96f6\u958b\u59cb\u5275\u5efa\u81ea\u5df1\u7684 ER \u5716\u3002<\/li>\n<\/ol>\n<h2>9. \u7d50\u8ad6<\/h2>\n<p>\u5be6\u9ad4-\u95dc\u4fc2\uff08ER\uff09\u5716\u5c0d\u65bc\u8cc7\u6599\u5eab\u8a2d\u8a08\u4ee5\u53ca\u7406\u89e3\u8cc7\u6599\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u81f3\u95dc\u91cd\u8981\u3002Visual Paradigm Online \u900f\u904e\u5176\u8c50\u5bcc\u7684\u6a21\u677f\u5eab\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u4fbf\u6377\u7684\u65b9\u5f0f\u4f86\u5b78\u7fd2 ER \u5716\u6982\u5ff5\u3002\u5f9e\u63a2\u7d22\u6a21\u677f\u3001\u81ea\u8a02\u5b83\u5011\u958b\u59cb\uff0c\u7136\u5f8c\u7df4\u7fd2\u5275\u5efa\u81ea\u5df1\u7684 ER \u5716\uff0c\u4ee5\u63d0\u5347\u60a8\u5728\u8cc7\u6599\u5eab\u5efa\u6a21\u65b9\u9762\u7684\u6280\u80fd\u3002\u900f\u904e\u4e0d\u65b7\u7df4\u7fd2\uff0c\u60a8\u5c07\u80fd\u5920\u719f\u7df4\u8a2d\u8a08\u51fa\u9ad8\u6548\u4e14\u6709\u6548\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7d39 \u5be6\u9ad4-\u95dc\u4fc2\uff08ER\uff09\u5716\u662f\u8cc7\u6599\u5eab\u8a2d\u8a08\u4e2d\u7528\u4f86\u8996\u89ba\u5316\u548c\u5efa\u6a21\u8cc7\u6599\u5eab\u7cfb\u7d71\u4e2d\u5be6\u9ad4\u4e4b\u9593\u95dc\u4fc2\u7684\u5f37\u5927\u5de5\u5177\u3002ER \u5716\u6709\u52a9\u65bc\u60a8\u7406 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9987,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[42],"tags":[],"class_list":["post-9986","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-diagram","loop-entry","clr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5be6\u9ad4-\u95dc\u4fc2\uff08ER\uff09\u5716\u7684\u5165\u9580\u6307\u5357 - Visual Paradigm \u535a\u5ba2<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.visual-paradigm.com\/tw\/beginners-guide-to-entity-relationship-er-diagrams\/\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" 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