{"id":1727,"date":"2026-04-10T04:07:26","date_gmt":"2026-04-10T04:07:26","guid":{"rendered":"https:\/\/www.viz-note.com\/cn\/challenging-erd-scenarios-principal-dbas\/"},"modified":"2026-04-10T04:07:26","modified_gmt":"2026-04-10T04:07:26","slug":"challenging-erd-scenarios-principal-dbas","status":"publish","type":"post","link":"https:\/\/www.viz-note.com\/cn\/challenging-erd-scenarios-principal-dbas\/","title":{"rendered":"\u4e0e\u9996\u5e2d\u6570\u636e\u5e93\u7ba1\u7406\u5458\u7684\u95ee\u7b54\uff1a\u6211\u4eec\u9047\u5230\u8fc7\u7684\u6700\u5177\u6311\u6218\u6027\u7684\u5b9e\u4f53\u5173\u7cfb\u56fe\u573a\u666f"},"content":{"rendered":"<p>\u6570\u636e\u5efa\u6a21\u662f\u4efb\u4f55\u7a33\u5065\u6570\u636e\u5e93\u67b6\u6784\u7684\u57fa\u77f3\u3002\u5c3d\u7ba1\u7406\u8bba\u901a\u5e38\u5728\u5927\u5b66\u8bfe\u7a0b\u4e2d\u8bb2\u6388\uff0c\u4f46\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u5b9e\u9645\u5e94\u7528\u5374\u63ed\u793a\u4e86\u4e00\u4e2a\u5145\u6ee1\u8fb9\u7f18\u60c5\u51b5\u3001\u6027\u80fd\u74f6\u9888\u548c\u903b\u8f91\u6a21\u7cca\u6027\u7684\u9886\u57df\u3002\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\u662f\u8fd9\u4e9b\u7cfb\u7edf\u7684\u84dd\u56fe\uff0c\u7136\u800c\u5f53\u73b0\u5b9e\u4e16\u754c\u62d2\u7edd\u88ab\u6574\u9f50\u5730\u585e\u8fdb\u65b9\u6846\u548c\u7ebf\u6761\u4e2d\u65f6\uff0c\u5b83\u4eec\u5e38\u5e38\u6210\u4e3a\u4e89\u8bae\u7684\u6765\u6e90\u3002<\/p>\n<p>\u6211\u4eec\u4e0e\u4e00\u7ec4\u9996\u5e2d\u6570\u636e\u5e93\u7ba1\u7406\u5458\u548c\u6570\u636e\u67b6\u6784\u5e08\u5750\u4e0b\u6765\uff0c\u6df1\u5165\u5206\u6790\u90a3\u4e9b\u5728\u8bbe\u8ba1\u9636\u6bb5\u53cd\u590d\u56f0\u6270\u56e2\u961f\u7684\u573a\u666f\u3002\u8fd9\u4e9b\u5e76\u975e\u7406\u8bba\u7ec3\u4e60\uff0c\u800c\u662f\u5f53\u4e1a\u52a1\u9700\u6c42\u4e0e\u7269\u7406\u5b58\u50a8\u9650\u5236\u53d1\u751f\u51b2\u7a81\u65f6\u5b9e\u9645\u51fa\u73b0\u7684\u95ee\u9898\u3002\u8fd9\u91cc\u7684\u76ee\u6807\u4e0d\u662f\u63d0\u4f9b\u5feb\u901f\u89e3\u51b3\u65b9\u6848\uff0c\u800c\u662f\u6df1\u5165\u7406\u89e3\u5176\u4e2d\u6d89\u53ca\u7684\u6743\u8861\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Marker-style infographic illustrating six challenging Entity Relationship Diagram scenarios faced by Principal DBAs: many-to-many join table complexities, recursive self-referencing hierarchies, supertype-subtype inheritance modeling, temporal data versioning, distributed sharding constraints, and normalization vs performance trade-offs, with visual icons, key considerations, and an ERD review checklist for database architecture design\" decoding=\"async\" src=\"https:\/\/www.viz-note.com\/wp-content\/uploads\/2026\/04\/challenging-erd-scenarios-infographic-marker-illustration.jpg\"\/><\/figure>\n<\/div>\n<h2>1. \u591a\u5bf9\u591a\u9677\u9631\uff1a\u8d85\u8d8a\u7b80\u5355\u7684\u8fde\u63a5\u8868 \ud83d\udd78\ufe0f<\/h2>\n<p>\u5728ERD\u8bbe\u8ba1\u4e2d\u6700\u5e38\u89c1\u7684\u8d77\u70b9\u662f\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u8fd9\u770b\u8d77\u6765\u5f88\u76f4\u89c2\uff1a\u4e00\u4e2a\u5b66\u751f\u53ef\u4ee5\u9009\u4fee\u591a\u95e8\u8bfe\u7a0b\uff0c\u800c\u4e00\u95e8\u8bfe\u7a0b\u4e5f\u53ef\u4ee5\u6709\u591a\u4e2a\u5b66\u751f\u3002\u6807\u51c6\u89e3\u51b3\u65b9\u6848\u662f\u4f7f\u7528\u4e00\u4e2a\u6865\u63a5\u8868\u6216\u5173\u8054\u8868\u3002\u7136\u800c\uff0c\u5f53\u5173\u7cfb\u672c\u8eab\u5f15\u5165\u5c5e\u6027\u65f6\uff0c\u590d\u6742\u6027\u4fbf\u968f\u4e4b\u800c\u6765\u3002<\/p>\n<ul>\n<li><strong>\u95ee\u9898\uff1a<\/strong>\u901a\u5e38\uff0c\u56e2\u961f\u4f1a\u5c1d\u8bd5\u5c06\u6ce8\u518c\u6570\u636e\uff08\u5982\u6210\u7ee9\u6216\u6ce8\u518c\u65e5\u671f\uff09\u5b58\u50a8\u5728\u4e3b\u5b66\u751f\u8868\u6216\u8bfe\u7a0b\u8868\u4e2d\uff0c\u5bfc\u81f4\u5927\u91cf\u5197\u4f59\u6216\u7a7a\u503c\u3002<\/li>\n<li><strong>\u73b0\u5b9e\uff1a<\/strong>\u5173\u7cfb\u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u5b9e\u4f53\u3002\u5b83\u5fc5\u987b\u62e5\u6709\u81ea\u5df1\u7684\u4e3b\u952e\u4ee5\u53ca\u6307\u5411\u7236\u8868\u7684\u5916\u952e\u3002<\/li>\n<li><strong>\u6311\u6218\uff1a<\/strong>\u5904\u7406\u7ea7\u8054\u5220\u9664\u3002\u5982\u679c\u5220\u9664\u4e00\u95e8\u8bfe\u7a0b\uff0c\u76f8\u5173\u7684\u6ce8\u518c\u8bb0\u5f55\u4f1a\u600e\u6837\uff1f\u5982\u679c\u5220\u9664\u4e00\u6761\u6ce8\u518c\u8bb0\u5f55\uff0c\u5b66\u751f\u662f\u5426\u4e5f\u4f1a\u6d88\u5931\uff1f\u8fd9\u4e9b\u51b3\u7b56\u51b3\u5b9a\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<p>\u5728\u6211\u4eec\u7684\u8ba8\u8bba\u4e2d\uff0c\u4e00\u4f4d\u9996\u5e2d\u6570\u636e\u5e93\u7ba1\u7406\u5458\u6307\u51fa\uff0c\u5173\u8054\u8868\u5e38\u5e38\u6210\u4e3a\u6027\u80fd\u74f6\u9888\u3002\u5f53\u8de8\u6b64\u8fde\u63a5\u70b9\u67e5\u8be2\u6570\u636e\u65f6\uff0c\u6570\u636e\u5e93\u5f15\u64ce\u5fc5\u987b\u6267\u884c\u4e00\u4e2a\u8fde\u63a5\u64cd\u4f5c\uff0c\u800c\u968f\u7740\u884c\u6570\u589e\u957f\u5230\u6570\u767e\u4e07\u7ea7\u522b\uff0c\u8fd9\u79cd\u64cd\u4f5c\u7684\u6269\u5c55\u6027\u5f80\u5f80\u5f88\u5dee\u3002\u89e3\u51b3\u65b9\u6848\u5e76\u4e0d\u603b\u662f\u67b6\u6784\u5c42\u9762\u7684\uff1b\u6709\u65f6\u9700\u8981\u53bb\u89c4\u8303\u5316\uff0c\u4f46\u8fd9\u4f1a\u5f15\u5165\u66f4\u65b0\u5f02\u5e38\u3002<\/p>\n<p><strong>\u591a\u5bf9\u591a\u5173\u7cfb\u7684\u5173\u952e\u8003\u8651\u56e0\u7d20\uff1a<\/strong><\/p>\n<ul>\n<li>\u8be5\u5173\u7cfb\u662f\u5426\u5177\u6709\u9700\u8981\u7d22\u5f15\u7684\u5c5e\u6027\uff1f<\/li>\n<li>\u8be5\u5173\u7cfb\u662f\u5f53\u524d\u7684\u8fd8\u662f\u5386\u53f2\u7684\uff1f\uff08\u4f8b\u5982\uff0c\u5f53\u524d\u6ce8\u518c\u4e0e\u8fc7\u53bb\u6ce8\u518c\u662f\u5426\u4e0d\u540c\uff1f\uff09<\/li>\n<li>\u5982\u679c\u7236\u8bb0\u5f55\u88ab\u5220\u9664\uff0c\u7cfb\u7edf\u5c06\u5982\u4f55\u5904\u7406\u5b64\u7acb\u8bb0\u5f55\uff1f<\/li>\n<\/ul>\n<h2>2. \u9012\u5f52\u5173\u7cfb\uff1a\u81ea\u5f15\u7528\u5c42\u6b21\u7ed3\u6784 \ud83c\udf33<\/h2>\n<p>\u5c42\u6b21\u5316\u6570\u636e\u65e0\u5904\u4e0d\u5728\u3002\u60f3\u60f3\u7ec4\u7ec7\u67b6\u6784\u56fe\u3001\u7269\u6599\u6e05\u5355\uff0c\u6216\u8bba\u575b\u4e2d\u7684\u8bc4\u8bba\u7ebf\u7a0b\u3002\u5efa\u6a21\u8fd9\u7c7b\u6570\u636e\u9700\u8981\u4e00\u5f20\u8868\u5f15\u7528\u81ea\u8eab\u3002\u867d\u7136\u6982\u5ff5\u4e0a\u5f88\u7b80\u5355\uff0c\u4f46\u5728\u5173\u7cfb\u6a21\u5f0f\u4e2d\u5b9e\u73b0\u65f6\uff0c\u4f1a\u5e26\u6765\u5173\u4e8e\u6df1\u5ea6\u548c\u904d\u5386\u7684\u7279\u5b9a\u6311\u6218\u3002<\/p>\n<p><strong>\u7ed3\u6784\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u4f60\u521b\u5efa\u4e00\u5f20\u8868\uff0c\u5305\u542b\u4e00\u4e2a\u4e3b\u952e\u548c\u4e00\u4e2a\u5916\u952e\u5217\uff0c\u8be5\u5217\u6307\u5411\u540c\u4e00\u5f20\u8868\u7684\u4e3b\u952e\u3002\u8fd9\u901a\u5e38\u88ab\u79f0\u4e3a\u201c\u7236\u7ea7ID\u201d\u5217\u3002\u6839\u8282\u70b9\u7684\u7236\u7ea7\u4e3anull\u3002<\/p>\n<p><strong>\u6027\u80fd\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u6807\u51c6SQL\u67e5\u8be2\u5728\u5904\u7406\u6df1\u5c42\u5c42\u6b21\u7ed3\u6784\u65f6\u4f1a\u9047\u5230\u56f0\u96be\u3002\u5982\u679c\u4f60\u9700\u8981\u83b7\u53d6\u4e00\u4f4d\u7ecf\u7406\u53ca\u5176\u6240\u6709\u76f4\u63a5\u548c\u95f4\u63a5\u4e0b\u5c5e\uff0c\u7b80\u5355\u7684JOIN\u64cd\u4f5c\u662f\u4e0d\u591f\u7684\u3002\u4f60\u9700\u8981\u4f7f\u7528\u9012\u5f52\u516c\u7528\u8868\u8868\u8fbe\u5f0f\uff08CTEs\uff09\u6216\u904d\u5386\u5c42\u7ea7\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002\u8fd9\u53ef\u80fd\u5e26\u6765\u5de8\u5927\u7684\u8ba1\u7b97\u5f00\u9500\u3002<\/p>\n<p><strong>\u5b8c\u6574\u6027\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5faa\u73af\u5f15\u7528\u662f\u65e0\u58f0\u7684\u6740\u624b\u3002\u5982\u679c\u5458\u5de5A\u7ba1\u7406\u5458\u5de5B\uff0c\u800c\u5458\u5de5B\u53c8\u7ba1\u7406\u5458\u5de5A\uff0c\u4f60\u5c31\u5f62\u6210\u4e86\u4e00\u4e2a\u5faa\u73af\u3002\u6570\u636e\u5e93\u5fc5\u987b\u963b\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u6216\u8005\u5e94\u7528\u7a0b\u5e8f\u903b\u8f91\u5fc5\u987b\u68c0\u6d4b\u5230\u5b83\u3002\u5728\u5927\u578b\u7cfb\u7edf\u4e2d\uff0c\u5faa\u73af\u53ef\u80fd\u5bfc\u81f4\u62a5\u544a\u5de5\u5177\u9677\u5165\u65e0\u9650\u5faa\u73af\u3002<\/p>\n<ul>\n<li><strong>\u6df1\u5ea6\u9650\u5236\uff1a<\/strong>\u5927\u591a\u6570\u7cfb\u7edf\u4f1a\u9650\u5236\u5c42\u6b21\u7ed3\u6784\u7684\u6df1\u5ea6\uff08\u4f8b\u5982\uff0c32\u5c42\uff09\uff0c\u4ee5\u9632\u6b62\u904d\u5386\u65f6\u53d1\u751f\u6808\u6ea2\u51fa\u9519\u8bef\u3002<\/li>\n<li><strong>\u8def\u5f84\u805a\u5408\uff1a<\/strong>\u8ba1\u7b97\u5b50\u6811\u7684\u603b\u6210\u672c\u6216\u6570\u91cf\u9700\u8981\u9012\u5f52\u903b\u8f91\uff0c\u8fd9\u5728\u6807\u51c6\u67e5\u8be2\u8ba1\u5212\u4e2d\u96be\u4ee5\u4f18\u5316\u3002<\/li>\n<\/ul>\n<h2>3. \u8d85\u7c7b\u578b\u4e0e\u5b50\u7c7b\u578b\u5efa\u6a21\uff1a\u7ee7\u627f\u56f0\u5883 \ud83e\uddec<\/h2>\n<p>\u5728\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\uff0c\u7ee7\u627f\u662f\u6807\u51c6\u505a\u6cd5\u3002\u800c\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\uff0c\u8fd9\u662f\u4e00\u79cd\u5f71\u54cd\u5b58\u50a8\u548c\u68c0\u7d22\u7684\u8bbe\u8ba1\u9009\u62e9\u3002\u95ee\u9898\u662f\uff1a\u4f60\u662f\u5c06\u8f66\u8f86\u5efa\u6a21\u4e3a\u4e00\u5f20\u8868\uff0c\u8fd8\u662f\u5c06\u5176\u62c6\u5206\u4e3a\u8f66\u8f86\u3001\u6c7d\u8f66\u548c\u5361\u8f66\u4e09\u5f20\u8868\uff1f<\/p>\n<p><strong>\u9009\u9879A\uff1a\u5355\u8868\u7ee7\u627f<\/strong><\/p>\n<p>\u6240\u6709\u5b50\u7c7b\u578b\u7684\u5c5e\u6027\u90fd\u4f4d\u4e8e\u4e00\u4e2a\u8868\u4e2d\u3002\u672a\u4f7f\u7528\u7684\u5c5e\u6027\u4f7f\u7528\u7a7a\u503c\u3002<\/p>\n<ul>\n<li><em>\u4f18\u70b9\uff1a<\/em>\u67e5\u8be2\u7b80\u5355\uff0c\u67e5\u627e\u4efb\u4f55\u8f66\u8f86\u90fd\u4e0d\u9700\u8981\u8fde\u63a5\u64cd\u4f5c\u3002<\/li>\n<li><em>\u7f3a\u70b9\uff1a<\/em>\u8868\u81a8\u80c0\uff0c\u96be\u4ee5\u5f3a\u5236\u6267\u884c\u5b50\u7c7b\u578b\u7279\u5b9a\u7684\u7ea6\u675f\uff0c\u5b58\u5728\u5927\u91cf\u53ef\u4e3a\u7a7a\u7684\u5217\u3002<\/li>\n<\/ul>\n<p><strong>\u9009\u9879B\uff1a\u7c7b\u8868\u7ee7\u627f<\/strong><\/p>\n<p>\u8d85\u7c7b\u578b\uff08Vehicle\uff09\u4f7f\u7528\u4e00\u4e2a\u8868\uff0c\u5b50\u7c7b\u578b\uff08Car\u3001Truck\uff09\u4f7f\u7528\u72ec\u7acb\u7684\u8868\uff0c\u901a\u8fc7\u4e3b\u952e\u5173\u8054\u3002<\/p>\n<ul>\n<li><em>\u4f18\u70b9\uff1a<\/em>\u7ed3\u6784\u6e05\u6670\uff0c\u65e0\u7a7a\u503c\uff0c\u6bcf\u4e2a\u5b50\u7c7b\u578b\u53ef\u4e25\u683c\u7ea6\u675f\u3002<\/li>\n<li><em>\u7f3a\u70b9\uff1a<\/em>\u67e5\u8be2\u9700\u8981\u8fde\u63a5\u591a\u4e2a\u8868\uff0c\u53ef\u80fd\u5f71\u54cd\u8bfb\u53d6\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p>\u6211\u4eec\u7684\u9996\u5e2d\u6570\u636e\u5e93\u7ba1\u7406\u5458\u6307\u51fa\uff0c\u9009\u62e9\u901a\u5e38\u53d6\u51b3\u4e8e\u67e5\u8be2\u6a21\u5f0f\u3002\u5982\u679c\u4f60\u9891\u7e41\u67e5\u8be2\u7279\u5b9a\u5b50\u7c7b\u578b\uff0c\u7c7b\u8868\u65b9\u6cd5\u66f4\u4f18\uff1b\u5982\u679c\u4f60\u9891\u7e41\u5bf9\u6240\u6709\u5b50\u7c7b\u578b\u8fdb\u884c\u805a\u5408\uff0c\u5355\u8868\u65b9\u6cd5\u66f4\u80dc\u4e00\u7b79\u3002ERD\u5fc5\u987b\u6e05\u6670\u53cd\u6620\u8fd9\u4e00\u51b3\u7b56\uff0c\u4ee5\u907f\u514d\u672a\u6765\u5f00\u53d1\u4eba\u5458\u4ea7\u751f\u6df7\u6dc6\u3002<\/p>\n<h2>4. \u65f6\u95f4\u6570\u636e\uff1a\u8ffd\u8e2a\u968f\u65f6\u95f4\u7684\u53d8\u5316 \u23f3<\/h2>\n<p>\u4e1a\u52a1\u89c4\u5219\u4f1a\u53d8\u5316\u3002\u5ba2\u6237\u642c\u5bb6\u3001\u4ef7\u683c\u66f4\u65b0\u3001\u5408\u540c\u5230\u671f\u3002\u4ec5\u5b58\u50a8\u201c\u5f53\u524d\u201d\u72b6\u6001\u901a\u5e38\u4e0d\u8db3\u4ee5\u6ee1\u8db3\u5ba1\u8ba1\u6216\u62a5\u544a\u9700\u6c42\u3002\u8fd9\u4fc3\u4f7f\u4e86\u65f6\u95f4\u8868\u6216\u7f13\u6162\u53d8\u5316\u7ef4\u5ea6\uff08SCD\uff09\u7684\u8bbe\u8ba1\u3002<\/p>\n<p><strong>\u590d\u6742\u6027\uff1a<\/strong><\/p>\n<p>\u4e0d\u662f\u66f4\u65b0\u884c\uff0c\u800c\u662f\u63d2\u5165\u4e00\u6761\u5e26\u6709\u6709\u6548\u8d77\u59cb\u548c\u7ed3\u675f\u65e5\u671f\u7684\u65b0\u884c\uff0c\u65e7\u884c\u88ab\u6807\u8bb0\u4e3a\u975e\u6d3b\u8dc3\u72b6\u6001\u3002\u8fd9\u4f7f\u5f97\u5386\u53f2\u6570\u636e\u7684\u5b58\u50a8\u9700\u6c42\u7ffb\u500d\uff0c\u5e76\u4f7f\u201c\u5f53\u524d\u89c6\u56fe\u201d\u67e5\u8be2\u53d8\u5f97\u590d\u6742\u3002<\/p>\n<p><strong>\u67e5\u8be2\u6311\u6218\uff1a<\/strong><\/p>\n<p>\u9009\u62e9\u67d0\u4e2a\u65f6\u95f4\u70b9\u7684\u6570\u636e\u9700\u8981\u57fa\u4e8e\u65e5\u671f\u8303\u56f4\u8fdb\u884c\u8fc7\u6ee4\u3002\u5982\u679c\u9057\u6f0f\u4e86\u65e5\u671f\u8303\u56f4\u903b\u8f91\uff0c\u53ef\u80fd\u4f1a\u8fd4\u56de\u8bb0\u5f55\u7684\u9519\u8bef\u7248\u672c\u3002\u8fd9\u901a\u5e38\u662f\u91d1\u878d\u5e94\u7528\u4e2d\u6570\u636e\u5b8c\u6574\u6027\u95ee\u9898\u51fa\u73b0\u7684\u5730\u65b9\u3002<\/p>\n<ul>\n<li><strong>\u5feb\u7167\u8bbe\u8ba1\uff1a<\/strong>\u5b58\u50a8\u67d0\u4e2a\u65f6\u95f4\u70b9\u7684\u72b6\u6001\u3002\u9700\u8981\u5b9a\u671f\u7684\u6279\u5904\u7406\u4efb\u52a1\u6765\u5199\u5165\u5feb\u7167\u3002<\/li>\n<li><strong>\u4e8b\u52a1\u65e5\u5fd7\u8bbe\u8ba1\uff1a<\/strong>\u6355\u83b7\u6bcf\u4e00\u6b21\u53d8\u66f4\u3002\u5199\u5165\u91cf\u9ad8\uff0c\u68c0\u7d22\u903b\u8f91\u590d\u6742\u3002<\/li>\n<li><strong>\u5468\u671f\u6027\u8bbe\u8ba1\uff1a<\/strong>\u5b58\u50a8\u6709\u6548\u65f6\u95f4\u6bb5\u3002\u80fd\u5f88\u597d\u5730\u5904\u7406\u65f6\u95f4\u95f4\u9694\u7684\u7a7a\u7f3a\uff0c\u4f46\u9700\u8981\u4ed4\u7ec6\u7ba1\u7406\u8fb9\u754c\u3002<\/li>\n<\/ul>\n<h2>5. \u5206\u5e03\u5f0f\u7cfb\u7edf\uff1a\u5206\u7247\u4e0e\u5173\u7cfb \ud83d\udd17<\/h2>\n<p>\u5f53\u5355\u4e2a\u6570\u636e\u5e93\u65e0\u6cd5\u5bb9\u7eb3\u6570\u636e\u65f6\uff0c\u5206\u7247\u5c31\u53d8\u5f97\u5fc5\u8981\u3002\u8fd9\u6b63\u662fERD\u8bbe\u8ba1\u9762\u4e34\u6700\u4e25\u91cd\u7269\u7406\u9650\u5236\u7684\u5730\u65b9\u3002\u8de8\u8d8a\u5206\u7247\u8fb9\u754c\u7684\u5173\u8054\u64cd\u4f5c\u4ee3\u4ef7\u9ad8\u6602\u3002<\/p>\n<p><strong>\u8fde\u63a5\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5982\u679c\u8868A\u6309\u7528\u6237ID\u5206\u7247\uff0c\u4e14\u8868B\u4e0e\u8868A\u76f8\u5173\u8054\uff0c\u5219\u8868B\u5fc5\u987b\u6309\u76f8\u540c\u7684\u7528\u6237ID\u5206\u7247\uff0c\u4ee5\u907f\u514d\u5206\u5e03\u5f0f\u8fde\u63a5\u3002\u5982\u679c\u8868B\u6309\u5176\u4ed6\u65b9\u5f0f\u5206\u7247\uff0c\u5219\u5fc5\u987b\u5c06\u67e5\u8be2\u8def\u7531\u5230\u591a\u4e2a\u5206\u7247\uff0c\u805a\u5408\u7ed3\u679c\u5e76\u5728\u672c\u5730\u8fde\u63a5\u3002<\/p>\n<p><strong>\u53c2\u7167\u5b8c\u6574\u6027\uff1a<\/strong><\/p>\n<p>\u5916\u952e\u7ea6\u675f\u5728\u8de8\u5206\u5e03\u5f0f\u8282\u70b9\u65f6\u96be\u4ee5\u5f3a\u5236\u6267\u884c\u3002\u8bb8\u591a\u7cfb\u7edf\u5728\u5206\u7247\u73af\u5883\u4e2d\u7981\u7528\u5916\u952e\u4ee5\u4fdd\u6301\u53ef\u7528\u6027\u3002\u8fd9\u5c06\u5b8c\u6574\u6027\u4fdd\u969c\u7684\u8d1f\u62c5\u8f6c\u79fb\u5230\u4e86\u5e94\u7528\u5c42\uff0c\u800c\u5e94\u7528\u5c42\u5bb9\u6613\u51fa\u73b0\u7ade\u4e89\u6761\u4ef6\u3002<\/p>\n<p><strong>\u5206\u5e03\u5f0fERD\u7684\u5173\u952e\u8981\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u907f\u514d\u8de8\u8d8a\u591a\u4e2a\u5206\u7247\u7684\u591a\u5bf9\u591a\u5173\u7cfb\u3002<\/li>\n<li>\u5bf9\u6570\u636e\u8fdb\u884c\u53cd\u89c4\u8303\u5316\uff0c\u4ee5\u51cf\u5c11\u8de8\u8282\u70b9\u8fde\u63a5\u7684\u9700\u6c42\u3002<\/li>\n<li>\u6839\u636e\u6700\u9891\u7e41\u7684\u67e5\u8be2\u6a21\u5f0f\u6765\u8bbe\u8ba1\u5206\u533a\u952e\uff08\u5206\u7247\u952e\uff09\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u4e3b\u952e\u3002<\/li>\n<\/ul>\n<h2>6. \u6027\u80fd\u4e0e\u89c4\u8303\u5316\u4e4b\u95f4\u7684\u6743\u8861 \u2696\ufe0f<\/h2>\n<p>\u89c4\u8303\u5316\uff081NF\u30012NF\u30013NF\uff09\u88ab\u4f5c\u4e3a\u6570\u636e\u5b8c\u6574\u6027\u7684\u9ec4\u91d1\u6807\u51c6\u6559\u6388\u3002\u7136\u800c\uff0c\u5728\u9ad8\u541e\u5410\u91cf\u7cfb\u7edf\u4e2d\uff0c\u4e25\u683c\u7684\u89c4\u8303\u5316\u53ef\u80fd\u4f1a\u4e25\u91cd\u5f71\u54cd\u6027\u80fd\u3002ERD\u5fc5\u987b\u5728\u8fd9\u4e24\u8005\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n<p><strong>\u4f55\u65f6\u8fdb\u884c\u53cd\u89c4\u8303\u5316\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u8bfb\u53d6\u5bc6\u96c6\u578b\u5de5\u4f5c\u8d1f\u8f7d\uff1a<\/strong> \u5982\u679c\u8bfb\u53d6\u6570\u636e\u7684\u9891\u7387\u8fdc\u9ad8\u4e8e\u5199\u5165\uff0c\u6dfb\u52a0\u5197\u4f59\u5217\u53ef\u4ee5\u907f\u514d\u8fde\u63a5\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u62a5\u8868\u9700\u6c42\uff1a<\/strong>\u5728\u89c4\u8303\u5316\u6570\u636e\u4e0a\u8fdb\u884c\u805a\u5408\u9700\u8981\u590d\u6742\u7684\u8fde\u63a5\u64cd\u4f5c\uff0c\u8fd9\u4f1a\u62d6\u6162\u4eea\u8868\u677f\u7684\u54cd\u5e94\u901f\u5ea6\u3002<\/li>\n<li><strong>\u5199\u5165\u5bc6\u96c6\u578b\u5de5\u4f5c\u8d1f\u8f7d\uff1a<\/strong> \u6709\u65f6\uff0c\u5c06\u6570\u636e\u5206\u5f00\u5b58\u50a8\u53ef\u4ee5\u51cf\u5c11\u66f4\u65b0\u65f6\u7684\u9501\u4e89\u7528\u3002<\/li>\n<\/ul>\n<p>\u6211\u4eec\u7684\u5c0f\u7ec4\u5f3a\u8c03\uff0c\u4e0d\u5b58\u5728\u6240\u8c13\u7684\u201c\u5b8c\u7f8e\u201d\u6a21\u5f0f\u3002\u5b83\u59cb\u7ec8\u662f\u4e00\u79cd\u6298\u8877\u3002ERD\u5e94\u8bb0\u5f55\u53cd\u89c4\u8303\u5316\u53d1\u751f\u7684\u4f4d\u7f6e\u53ca\u5176\u539f\u56e0\uff0c\u4ee5\u4fbf\u672a\u6765\u7684\u7ef4\u62a4\u8005\u7406\u89e3\u5197\u4f59\u662f\u6545\u610f\u4e3a\u4e4b\uff0c\u800c\u975e\u9519\u8bef\u3002<\/p>\n<h2>\u5efa\u6a21\u6a21\u5f0f\u5bf9\u6bd4 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