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\u7d22\u5f15\uff1a\u5728\u7ecf\u5e38\u7528\u4e8e\u641c\u7d22\u7684\u5217\u4e0a\u5b9e\u65bd\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n<h2>\u6848\u4f8b\u7814\u7a76\uff1a\u56fe\u4e66\u9986\u7cfb\u7edf<\/h2>\n<h3>\u5b9e\u4f53\u5173\u7cfb\u56fe<\/h3>\n<p>\u6211\u4eec\u5b9a\u4e49\u4e86\u56db\u4e2a\u8868\uff1a\u4f5c\u8005\u3001\u4e66\u7c4d\u3001\u8bfb\u8005\u548c\u4ea4\u6613\u3002\u4ee5\u4e0b\u662f\u6bcf\u4e2a\u8868\u7684\u542b\u4e49\uff1a<\/p>\n<ol>\n<li>\u4f5c\u8005\uff1a\u5305\u542b\u4e66\u7c4d\u4f5c\u8005\u7684\u4fe1\u606f\u3002\u5b83\u4ee5AuthorID\u4f5c\u4e3a\u4e3b\u952e\uff0c\u5305\u542bName\u5c5e\u6027\u3002<\/li>\n<li>\u4e66\u7c4d\uff1a\u8868\u793a\u4e66\u7c4d\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u5b83\u5305\u542bISBN\uff08\u4e3b\u952e\uff09\u3001\u6807\u9898\u3001\u51fa\u7248\u65e5\u671f\uff0c\u4ee5\u53ca\u4e00\u4e2a\u4f5c\u4e3a\u5916\u952e\u7684AuthorID\uff0c\u5f15\u7528\u4f5c\u8005\u8868\u4ee5\u5efa\u7acb\u4e66\u7c4d\u4e0e\u4f5c\u8005\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/li>\n<li>\u8bfb\u8005\uff1a\u5b58\u50a8\u56fe\u4e66\u9986\u8bfb\u8005\u7684\u4fe1\u606f\u3002\u5b83\u4ee5PatronID\u4f5c\u4e3a\u4e3b\u952e\uff0c\u5305\u542bName\u5c5e\u6027\u3002<\/li>\n<li>\u4ea4\u6613\uff1a\u6b64\u8868\u8bb0\u5f55\u8bfb\u8005\u501f\u4e66\u65f6\u7684\u4ea4\u6613\u4fe1\u606f\u3002\u5b83\u5305\u542bTransactionID\uff08\u4e3b\u952e\uff09\u3001BookID\uff08\u5916\u952e\uff0c\u5f15\u7528\u4e66\u7c4d\u8868\uff09\u3001PatronID\uff08\u5916\u952e\uff0c\u5f15\u7528\u8bfb\u8005\u8868\uff09\u548cDueDate\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u4e9b\u8868\u4e4b\u95f4\u7684\u5173\u7cfb\u8868\u793a\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u4f5c\u8005\u548c\u4e66\u7c4d\u4e4b\u95f4\u901a\u8fc7\u4e00\u5bf9\u591a\u7684\u5173\u7cfb\u8fde\u63a5\uff0c\u8868\u660e\u4e00\u4f4d\u4f5c\u8005\u53ef\u4ee5\u64b0\u5199\u591a\u672c\u4e66\u3002<\/li>\n<li>\u4e66\u7c4d\u548c\u4ea4\u6613\u4e4b\u95f4\u76f8\u4e92\u5173\u8054\uff0c\u8868\u793a\u6bcf\u672c\u4e66\u53ef\u4ee5\u53c2\u4e0e\u591a\u6b21\u4ea4\u6613\uff0c\u4f46\u6bcf\u6b21\u4ea4\u6613\u4ec5\u5bf9\u5e94\u4e00\u672c\u4e66\u3002<\/li>\n<li>\u8bfb\u8005\u548c\u4ea4\u6613\u4e4b\u95f4\u76f8\u8fde\uff0c\u8868\u660e\u6bcf\u4f4d\u8bfb\u8005\u53ef\u4ee5\u6709\u591a\u4e2a\u4ea4\u6613\uff0c\u4f46\u6bcf\u4e2a\u4ea4\u6613\u4ec5\u5c5e\u4e8e\u4e00\u4f4d\u8bfb\u8005\u3002<\/li>\n<\/ul>\n<h3>\u89c4\u8303\u5316\u8fc7\u7a0b<\/h3>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u8868\u683c\u6765\u9010\u6b65\u8bb2\u89e3\u6211\u4eec\u56fe\u4e66\u9986\u7cfb\u7edf\u6570\u636e\u5e93\u7684\u89c4\u8303\u5316\u8fc7\u7a0b\u3002\u6211\u4eec\u5c06\u4ece\u4e00\u7ec4\u521d\u59cb\u8868\u683c\u5f00\u59cb\uff0c\u9010\u6b65\u5c06\u5176\u89c4\u8303\u5316\u4e3a\u7b2c\u4e00\u8303\u5f0f\uff081NF\uff09\u3001\u7b2c\u4e8c\u8303\u5f0f\uff082NF\uff09\u548c\u7b2c\u4e09\u8303\u5f0f\uff083NF\uff09\u3002<\/p>\n<p><strong>\u521d\u59cb\u8868\u683c\uff1a<\/strong><\/p>\n<ol>\n<li>\u4e66\u7c4d\n<ul>\n<li>ISBN\uff08\u4e3b\u952e\uff09<\/li>\n<li>\u4e66\u540d<\/li>\n<li>\u51fa\u7248\u65e5\u671f<\/li>\n<li>\u4f5c\u8005ID\uff08\u5916\u952e\uff09<\/li>\n<\/ul>\n<\/li>\n<li>\u4f5c\u8005\n<ul>\n<li>\u4f5c\u8005ID\uff08\u4e3b\u952e\uff09<\/li>\n<li>\u59d3\u540d<\/li>\n<\/ul>\n<\/li>\n<li>\u8bfb\u8005\n<ul>\n<li>\u8bfb\u8005ID\uff08\u4e3b\u952e\uff09<\/li>\n<li>\u59d3\u540d<\/li>\n<\/ul>\n<\/li>\n<li>\u4ea4\u6613\n<ul>\n<li>\u4ea4\u6613ID\uff08\u4e3b\u952e\uff09<\/li>\n<li>\u4e66\u7c4dID\uff08\u5916\u952e\uff09<\/li>\n<li>\u8bfb\u8005ID\uff08\u5916\u952e\uff09<\/li>\n<li>\u5230\u671f\u65e5<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><strong>\u7b2c\u4e00\u8303\u5f0f\uff081NF\uff09\uff1a<\/strong><\/p>\n<p>\u5728\u7b2c\u4e00\u8303\u5f0f\u4e2d\uff0c\u6bcf\u4e2a\u8868\u90fd\u5e94\u5177\u6709\u4e3b\u952e\uff0c\u4e14\u4efb\u4f55\u5217\u4e2d\u90fd\u4e0d\u5e94\u5b58\u5728\u91cd\u590d\u7ec4\u6216\u6570\u7ec4\u3002\u6211\u4eec\u7684\u521d\u59cb\u8868\u683c\u5df2\u7ecf\u6ee1\u8db31NF\uff0c\u56e0\u4e3a\u5b83\u4eec\u5177\u6709\u4e3b\u952e\uff0c\u4e14\u6bcf\u4e2a\u5355\u5143\u683c\u53ea\u5305\u542b\u4e00\u4e2a\u503c\u3002<\/p>\n<p><strong>\u7b2c\u4e8c\u8303\u5f0f\uff082NF\uff09\uff1a<\/strong><\/p>\n<p>\u4e3a\u4e86\u8fbe\u52302NF\uff0c\u6211\u4eec\u9700\u8981\u786e\u4fdd\u975e\u952e\u5c5e\u6027\u4f9d\u8d56\u4e8e\u6574\u4e2a\u4e3b\u952e\u3002\u5728\u6211\u4eec\u7684\u521d\u59cb\u8868\u683c\u4e2d\uff0c\u4e66\u7c4d\u8868\u5b58\u5728\u90e8\u5206\u4f9d\u8d56\uff0c\u56e0\u4e3a\u4e66\u540d\u548c\u51fa\u7248\u65e5\u671f\u4ec5\u4f9d\u8d56\u4e8eISBN\uff0c\u800c\u975e\u6574\u4e2a\u4e3b\u952e\u3002\u6211\u4eec\u5c06\u628a\u4e66\u7c4d\u8868\u62c6\u5206\u4e3a\u4e24\u4e2a\u8868\uff1a<\/p>\n<p><strong>\u4e66\u7c4d\uff082NF\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>ISBN\uff08\u4e3b\u952e\uff09<\/li>\n<li>\u4f5c\u8005ID\uff08\u5916\u952e\uff09<\/li>\n<\/ul>\n<p><strong>\u4e66\u7c4d\u8be6\u60c5\uff082NF\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>ISBN\uff08\u5916\u952e\uff09<\/li>\n<li>\u4e66\u540d<\/li>\n<li>\u51fa\u7248\u65e5\u671f<\/li>\n<\/ul>\n<p>\u73b0\u5728\uff0c\u6bcf\u4e2a\u8868\u7684\u5c5e\u6027\u90fd\u4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\u4f5c\u8005\u8868<br \/>\n\u521b\u5efa\u8868 Authors (<br \/>\nAuthorID INT \u4e3b\u952e,<br \/>\nName VARCHAR(255)<br \/>\n);<\/p>\n<p>\u2014 \u4e66\u7c4d\u8868<br \/>\n\u521b\u5efa\u8868 Books (<br \/>\nISBN VARCHAR(13) \u4e3b\u952e,<br \/>\nAuthorID INT,<br \/>\n\u5916\u952e (AuthorID) \u53c2\u7167 Authors(AuthorID)<br \/>\n);<\/p>\n<p>\u2014 \u4e66\u7c4d\u8be6\u60c5\u8868<br \/>\n\u521b\u5efa\u8868 BookDetails (<br \/>\nISBN VARCHAR(13),<br \/>\nTitle VARCHAR(255),<br \/>\n\u51fa\u7248\u65e5\u671f DATE,<br \/>\n\u5916\u952e (ISBN) \u53c2\u7167 Books(ISBN)<br \/>\n);<\/p>\n<p>\u2014 \u8bfb\u8005\u8868<br \/>\n\u521b\u5efa\u8868 Patrons (<br \/>\nPatronID INT \u4e3b\u952e,<br \/>\nName VARCHAR(255)<br \/>\n);<\/p>\n<p>\u2014 \u4ea4\u6613\u8868<br \/>\n\u521b\u5efa\u8868 Transactions (<br \/>\nTransactionID INT \u4e3b\u952e,<br \/>\nPatronID INT,<br \/>\nDueDate DATE,<br \/>\n\u5916\u952e (PatronID) \u53c2\u7167 Patrons(PatronID)<br \/>\n);<\/p>\n<p>\u2014 \u501f\u9605\u4e66\u7c4d\u8868\uff08\u7528\u4e8e\u8868\u793a\u4ea4\u6613\u4e0e\u4e66\u7c4d\u4e4b\u95f4\u7684\u591a\u5bf9\u591a\u5173\u7cfb\uff09<br \/>\n\u521b\u5efa\u8868 BorrowedBooks (<br \/>\nTransactionID INT,<br \/>\nISBN VARCHAR(13),<br \/>\n\u5916\u952e (TransactionID) \u53c2\u7167 Transactions(TransactionID),<br \/>\n\u5916\u952e (ISBN) \u53c2\u7167 Books(ISBN)<br \/>\n);<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u4e3a\u56fe\u4e66\u9986\u7ba1\u7406\u7cfb\u7edf\u8bbe\u8ba1\u6570\u636e\u5e93\u662f\u4e00\u9879\u590d\u6742\u4f46\u81f3\u5173\u91cd\u8981\u7684\u4efb\u52a1\u3002\u901a\u8fc7\u4ece\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\u5f00\u59cb\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u89c4\u8303\u5316\uff0c\u7136\u540e\u521b\u5efa\u7ed3\u6784\u826f\u597d\u7684\u6570\u636e\u5e93\u6a21\u5f0f\uff0c\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\uff0c\u51cf\u5c11\u5197\u4f59\uff0c\u5e76\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\u3002\u8fd9\u79cd\u7ed3\u6784\u5316\u65b9\u6cd5\u4e3a\u53ef\u9760\u4e14\u9ad8\u6548\u7684\u56fe\u4e66\u9986\u7cfb\u7edf\u5960\u5b9a\u4e86\u57fa\u7840\uff0c\u4f7f\u5176\u80fd\u591f\u6709\u6548\u7ba1\u7406\u4e66\u7c4d\u3001\u4f5c\u8005\u3001\u8bfb\u8005\u548c\u4ea4\u6613\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u8bbe\u8ba1\u4e00\u4e2a\u5f3a\u5927\u4e14\u9ad8\u6548\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u662f\u5f00\u53d1\u56fe\u4e66\u9986\u7ba1\u7406\u7cfb\u7edf\u7684\u5173\u952e\u6b65\u9aa4\u3002\u8fd9\u4e00\u8fc7\u7a0b\u5305\u62ec\u591a\u4e2a\u9636\u6bb5\uff0c\u4ece\u5b9e\u4f53-\u5173\u7cfb\u56fe\uff08ERD\uff09\u8bbe\u8ba1\u5f00\u59cb\uff0c\u63a5\u7740\u662f\u89c4\u8303\u5316\uff0c\u6700\u540e\u662f\u521b\u5efa\u6570\u636e\u5e93\u6a21\u5f0f\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u9010\u6b65\u4ecb\u7ecd\u8fd9\u4e9b\u9636\u6bb5\uff0c\u5c55\u793a\u5982\u4f55\u5c06\u4e00\u4e2a\u6982\u5ff5\u8f6c\u5316\u4e3a\u7ed3\u6784\u826f\u597d\u4e14\u4f18\u5316\u7684\u56fe\u4e66\u9986\u7cfb\u7edf\u6570\u636e\u5e93\u3002 \u4eceERD\u3001\u89c4\u8303\u5316\u5230\u6570\u636e\u5e93\u6a21\u5f0f\u7684\u6570\u636e\u5efa\u6a21\u8fc7\u7a0b \u5b9e\u4f53-\u5173\u7cfb\u56fe\uff08ERD\uff09 \u8bbe\u8ba1\u56fe\u4e66\u9986\u7cfb\u7edf\u6570\u636e\u5e93\u7684\u7b2c\u4e00\u6b65\u662f\u521b\u5efa\u5b9e\u4f53-\u5173\u7cfb\u56fe\uff08ERD\uff09\u3002ERD\u662f\u7cfb\u7edf\u5185\u6570\u636e\u5b9e\u4f53\u53ca\u5176\u5173\u7cfb\u7684\u53ef\u89c6\u5316\u8868\u793a\u3002\u4ee5\u4e0b\u662f\u9700\u8981\u8003\u8651\u7684\u4e00\u4e9b\u5173\u952e\u7ec4\u4ef6\uff1a a. \u5b9e\u4f53\uff1a\u8bc6\u522b\u56fe\u4e66\u9986\u7cfb\u7edf\u4e2d\u7684\u4e3b\u8981\u5b9e\u4f53\u3002\u8fd9\u4e9b\u53ef\u80fd\u5305\u62ec\u4e66\u7c4d\u3001\u4f5c\u8005\u3001\u8bfb\u8005\u3001\u5de5\u4f5c\u4eba\u5458\u548c\u4ea4\u6613\u3002 b. \u5c5e\u6027\uff1a\u4e3a\u6bcf\u4e2a\u5b9e\u4f53\u5b9a\u4e49\u5c5e\u6027\u6216\u7279\u5f81\u3002\u4f8b\u5982\uff0c\u201c\u4e66\u7c4d\u201d\u5b9e\u4f53\u53ef\u80fd\u5177\u6709ISBN\u3001\u6807\u9898\u3001\u4f5c\u8005\u3001\u51fa\u7248\u65e5\u671f\u7b49\u5c5e\u6027\u3002 c. \u5173\u7cfb\uff1a\u786e\u5b9a\u5b9e\u4f53\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u4f8b\u5982\uff0c\u201c\u8bfb\u8005\u201d\u5b9e\u4f53\u53ef\u80fd\u4e0e\u201c\u4e66\u7c4d\u201d\u5b9e\u4f53\u5177\u6709\u201c\u501f\u9605\u201d\u5173\u7cfb\uff0c\u4ee5\u8868\u793a\u4e66\u7c4d\u7684\u501f\u9605\u884c\u4e3a\u3002 d. \u57fa\u6570\uff1a\u6307\u5b9a\u5173\u7cfb\u7684\u57fa\u6570\uff0c\u8868\u660e\u4e00\u4e2a\u5b9e\u4f53\u5b9e\u4f8b\u4e0e\u53e6\u4e00\u4e2a\u5b9e\u4f53\u5b9e\u4f8b\u4e4b\u95f4\u7684\u5173\u8054\u6570\u91cf\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u8bfb\u8005\u53ef\u4ee5\u501f\u9605\u591a\u672c\u4e66\uff0c\u4f46\u6bcf\u672c\u4e66\u5728\u540c\u4e00\u65f6\u95f4\u53ea\u80fd\u88ab\u4e00\u4e2a\u8bfb\u8005\u501f\u9605\u3002 \u89c4\u8303\u5316 \u89c4\u8303\u5316\u662f\u7ec4\u7ec7\u6570\u636e\u5e93\u4e2d\u6570\u636e\u4ee5\u6d88\u9664\u5197\u4f59\u5e76\u63d0\u9ad8\u6570\u636e\u5b8c\u6574\u6027\u7684\u8fc7\u7a0b\u3002\u76ee\u6807\u662f\u51cf\u5c11\u6570\u636e\u91cd\u590d\uff0c\u5e76\u786e\u4fdd\u6bcf\u6761\u4fe1\u606f\u90fd\u5b58\u50a8\u5728\u6700\u5408\u9002\u7684\u4f4d\u7f6e\u3002\u4ee5\u4e0b\u662f\u89c4\u8303\u5316\u56fe\u4e66\u9986\u7cfb\u7edf\u6570\u636e\u5e93\u6240\u6d89\u53ca\u7684\u6b65\u9aa4\uff1a a. \u8bc6\u522b\u51fd\u6570\u4f9d\u8d56\uff1a\u5206\u6790\u5b9e\u4f53\u4e2d\u7684\u5c5e\u6027\uff0c\u786e\u5b9a\u54ea\u4e9b\u5c5e\u6027\u4f9d\u8d56\u4e8e\u5176\u4ed6\u5c5e\u6027\u3002\u4f8b\u5982\uff0c\u5728\u201c\u4e66\u7c4d\u201d\u5b9e\u4f53\u4e2d\uff0c\u4f5c\u8005\u59d3\u540d\u4f9d\u8d56\u4e8e\u4e66\u7c4d\u7684ISBN\u3002 b. \u5e94\u7528\u89c4\u8303\u5316\u89c4\u5219\uff1a\u4f7f\u7528\u89c4\u8303\u5316\u89c4\u5219\uff08\u5982\u7b2c\u4e00\u8303\u5f0f\u3001\u7b2c\u4e8c\u8303\u5f0f\u3001\u7b2c\u4e09\u8303\u5f0f\uff09\u5c06\u590d\u6742\u5b9e\u4f53\u5206\u89e3\u4e3a\u66f4\u7b80\u5355\u7684\u5b9e\u4f53\uff0c\u5e76\u4e3a\u76f8\u5173\u6570\u636e\u521b\u5efa\u72ec\u7acb\u7684\u8868\u3002 c. \u521b\u5efa\u5173\u7cfb\uff1a\u4f7f\u7528\u4e3b\u952e\u548c\u5916\u952e\u5728\u89c4\u8303\u5316\u540e\u7684\u8868\u4e4b\u95f4\u5efa\u7acb\u5173\u7cfb\uff0c\u4ee5\u7ef4\u62a4\u6570\u636e\u5b8c\u6574\u6027\u3002 d. \u6d88\u9664\u5197\u4f59\uff1a\u786e\u4fdd\u6bcf\u6761\u6570\u636e\u4ec5\u5b58\u50a8\u5728\u4e00\u4e2a\u4f4d\u7f6e\u3002\u4f8b\u5982\uff0c\u4f5c\u8005\u4fe1\u606f\u5e94\u5b58\u50a8\u5728\u5355\u72ec\u7684\u201c\u4f5c\u8005\u201d\u8868\u4e2d\uff0c\u800c\u4e0d\u662f\u5728\u6bcf\u672c\u56fe\u4e66\u6761\u76ee\u4e2d\u91cd\u590d\u5b58\u50a8\u3002 \u6570\u636e\u5e93\u6a21\u5f0f \u4e00\u65e6\u6570\u636e\u5e93\u5b8c\u5168\u89c4\u8303\u5316\uff0c\u5c31\u53ef\u4ee5\u7ee7\u7eed\u521b\u5efa\u6570\u636e\u5e93\u6a21\u5f0f\u3002\u6a21\u5f0f\u5b9a\u4e49\u4e86\u6570\u636e\u5e93\u7684\u7ed3\u6784\uff0c\u5305\u62ec\u8868\u3001\u5217\u3001\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\u3002\u4ee5\u4e0b\u662f\u521b\u5efa\u56fe\u4e66\u9986\u7cfb\u7edf\u6570\u636e\u5e93\u6a21\u5f0f\u7684\u6b65\u9aa4\uff1a a. \u5b9a\u4e49\u8868\uff1a\u6839\u636eERD\u4e2d\u8bc6\u522b\u51fa\u7684\u5b9e\u4f53\u548c\u89c4\u8303\u5316\u540e\u7684\u6570\u636e\u521b\u5efa\u8868\u3002\u6bcf\u4e2a\u8868\u5e94\u4ee3\u8868\u4e00\u4e2a\u7279\u5b9a\u7684\u5b9e\u4f53\uff08\u4f8b\u5982\uff0c\u201c\u4e66\u7c4d\u201d\u3001\u201c\u4f5c\u8005\u201d\u3001\u201c\u8bfb\u8005\u201d\uff09\u3002 b. \u5b9a\u4e49\u5217\uff1a\u4e3a\u6bcf\u4e2a\u8868\u6307\u5b9a\u5217\uff0c\u4ee3\u8868ERD\u4e2d\u8bc6\u522b\u51fa\u7684\u5c5e\u6027\u3002\u786e\u4fdd\u6b63\u786e\u8bbe\u7f6e\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f\uff08\u5982\u4e3b\u952e\u3001\u5916\u952e\u3001\u552f\u4e00\u6027\u7ea6\u675f\uff09\u3002 c. \u5efa\u7acb\u5173\u7cfb\uff1a\u4f7f\u7528\u5916\u952e\u5728\u8868\u4e4b\u95f4\u5efa\u7acb\u5173\u7cfb\uff0c\u8fde\u63a5\u76f8\u5173\u6570\u636e\u3002\u4f8b\u5982\uff0c\u201c\u4e66\u7c4d\u201d\u8868\u53ef\u80fd\u5305\u542b\u4e00<a href=\"https:\/\/guides.visual-paradigm.com\/cn\/designing-a-library-system-from-erd-to-normalization-to-database-schema\/\" rel=\"bookmark\"><span class=\"screen-reader-text\">\u8bbe\u8ba1\u56fe\u4e66\u9986\u7cfb\u7edf\uff1a\u4eceERD\u5230\u89c4\u8303\u5316\u518d\u5230\u6570\u636e\u5e93\u6a21\u5f0f<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_eb_attr":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[17],"tags":[],"class_list":["post-6882","post","type-post","status-publish","format-standard","hentry","category-data-modeling-database"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u8bbe\u8ba1\u56fe\u4e66\u9986\u7cfb\u7edf\uff1a\u4eceERD\u5230\u89c4\u8303\u5316\u518d\u5230\u6570\u636e\u5e93\u6a21\u5f0f - Visual Paradigm Guides Simplified Chinese<\/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:\/\/guides.visual-paradigm.com\/cn\/designing-a-library-system-from-erd-to-normalization-to-database-schema\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u8bbe\u8ba1\u56fe\u4e66\u9986\u7cfb\u7edf\uff1a\u4eceERD\u5230\u89c4\u8303\u5316\u518d\u5230\u6570\u636e\u5e93\u6a21\u5f0f - Visual Paradigm Guides Simplified Chinese\" \/>\n<meta property=\"og:description\" content=\"\u5f15\u8a00 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