{"id":6761,"date":"2026-02-05T23:04:18","date_gmt":"2026-02-05T15:04:18","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/building-an-online-bookstore-data-modeling-with-erd-and-dbml\/"},"modified":"2026-02-05T23:04:18","modified_gmt":"2026-02-05T15:04:18","slug":"building-an-online-bookstore-data-modeling-with-erd-and-dbml","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/building-an-online-bookstore-data-modeling-with-erd-and-dbml\/","title":{"rendered":"\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u306e\u69cb\u7bc9\uff1aERD\u3068DBML\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0"},"content":{"rendered":"<p>\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3068\u306f\u3001\u30c7\u30fc\u30bf\u304a\u3088\u3073\u305d\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u95a2\u4fc2\u3092\u8996\u899a\u7684\u306b\u8868\u73fe\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3067\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u30c4\u30fc\u30eb\u306e\u4e00\u3064\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3067\u3042\u308a\u3001\u56f3\u5f62\u8a18\u53f7\u3092\u7528\u3044\u3066\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u3092\u8868\u73fe\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001ERD\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u691c\u8a0e\u3057\u3001\u5b9f\u969b\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3067\u304d\u308b\u304b\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n<p>ERD\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u305d\u306e\u5c5e\u6027\u3001\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u9593\u306e\u95a2\u4fc2\u3092\u8996\u899a\u7684\u306b\u8868\u73fe\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u8868\u73fe\u3055\u308c\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3084\u6982\u5ff5\u3092\u6307\u3057\u3001\u9867\u5ba2\u3001\u6ce8\u6587\u3001\u88fd\u54c1\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u5c5e\u6027\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u7279\u5fb4\u3084\u6027\u8cea\u3092\u8868\u3057\u3001\u540d\u524d\u3001\u4f4f\u6240\u3001\u4fa1\u683c\u306a\u3069\u304c\u8a72\u5f53\u3057\u307e\u3059\u3002\u95a2\u4fc2\u3068\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u95a2\u9023\u3092\u6307\u3057\u3001\u9867\u5ba2\u304c\u6ce8\u6587\u3092\u884c\u3046\u3068\u3044\u3063\u305f\u72b6\u6cc1\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<h3>ERD\u306f\u901a\u5e38\u3001\u4ee5\u4e0b\u306e\u69cb\u6210\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\uff1a<\/h3>\n<ol>\n<li>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u540d\u304c\u5185\u90e8\u306b\u8a18\u8f09\u3055\u308c\u305f\u9577\u65b9\u5f62\u3067\u8868\u3055\u308c\u308b\u3002<\/li>\n<li>\u5c5e\u6027\uff1a\u305d\u306e\u5c5e\u6027\u304c\u6240\u5c5e\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u7dda\u3067\u63a5\u7d9a\u3055\u308c\u305f\u6955\u5186\u3067\u8868\u3055\u308c\u308b\u3002<\/li>\n<li>\u95a2\u4fc2\uff1a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d50\u3076\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u3067\u8868\u3055\u308c\u308b\u3002<\/li>\n<\/ol>\n<p>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u3067\u5b58\u5728\u3057\u3046\u308b\u95a2\u4fc2\u306e\u7a2e\u985e\u306f\u4ee5\u4e0b\u306e3\u3064\u3067\u3042\u308b\uff1a<\/p>\n<ol>\n<li>1\u5bfe1\uff081:1\uff09\uff1a1\u3064\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3001\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e1\u3064\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u95a2\u9023\u3059\u308b\u5834\u5408\u3002<\/li>\n<li>1\u5bfe\u591a\uff081:N\uff09\uff1a1\u3064\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3001\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u95a2\u9023\u3059\u308b\u5834\u5408\u3002<\/li>\n<li>\u591a\u5bfe\u591a\uff08N:M\uff09\uff1a\u8907\u6570\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3001\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u95a2\u9023\u3059\u308b\u5834\u5408\u3002<\/li>\n<\/ol>\n<h2>ERD\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u4f8b<\/h2>\n<p>\u9867\u5ba2\u306b\u66f8\u7c4d\u3092\u8ca9\u58f2\u3059\u308b\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u306e\u4f8b\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u66f8\u5e97\u306b\u306f\u8907\u6570\u306e\u66f8\u7c4d\u30ab\u30c6\u30b4\u30ea\u304c\u3042\u308a\u3001\u6ce8\u6587\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u591a\u6570\u306e\u9867\u5ba2\u304c\u3044\u307e\u3059\u3002\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u3092ERD\u3067\u30e2\u30c7\u30eb\u5316\u3059\u308b\u306b\u306f\u3001\u307e\u305a\u95a2\u4e0e\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u304b\u3089\u59cb\u3081\u307e\u3059\u3002<\/p>\n<p><strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong><\/p>\n<ol>\n<li>Book\uff1a\u66f8\u5e97\u5185\u306e\u66f8\u7c4d\u3092\u8868\u3059\u3002\u30bf\u30a4\u30c8\u30eb\u3001\u8457\u8005\u3001ISBN\u3001\u4fa1\u683c\u306a\u3069\u306e\u5c5e\u6027\u3092\u542b\u3080\u3002<\/li>\n<li>Category\uff1a\u66f8\u5e97\u5185\u306e\u66f8\u7c4d\u306e\u30ab\u30c6\u30b4\u30ea\u307e\u305f\u306f\u30b8\u30e3\u30f3\u30eb\u3092\u8868\u3059\u3002\u540d\u524d\u3084\u8aac\u660e\u306a\u3069\u306e\u5c5e\u6027\u3092\u542b\u3080\u3002<\/li>\n<li>Customer\uff1a\u66f8\u5e97\u306b\u767b\u9332\u3057\u305f\u9867\u5ba2\u3092\u8868\u3059\u3002\u540d\u524d\u3001\u4f4f\u6240\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u5c5e\u6027\u3092\u542b\u3080\u3002<\/li>\n<li>Order\uff1a\u9867\u5ba2\u304c\u884c\u3063\u305f\u6ce8\u6587\u3092\u8868\u3059\u3002\u6ce8\u6587\u65e5\u3001\u5408\u8a08\u91d1\u984d\u306a\u3069\u306e\u5c5e\u6027\u3092\u542b\u3080\u3002\u307e\u305f\u3001\u9867\u5ba2\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3078\u306e\u5916\u90e8\u30ad\u30fc\u53c2\u7167\u304c\u3042\u308a\u3001\u3069\u306e\u9867\u5ba2\u304c\u6ce8\u6587\u3057\u305f\u304b\u3092\u793a\u3059\u3002<\/li>\n<li>Book_Category\uff1a\u66f8\u7c4d\u3068\u30ab\u30c6\u30b4\u30ea\u9593\u306e\u591a\u5bfe\u591a\u95a2\u4fc2\u3092\u8868\u3059\u3002Book\u304a\u3088\u3073Category\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3078\u306e\u5916\u90e8\u30ad\u30fc\u53c2\u7167\u3092\u542b\u3080\u3002<\/li>\n<li>Order_Book\uff1a\u6ce8\u6587\u3068\u66f8\u7c4d\u9593\u306e\u591a\u5bfe\u591a\u95a2\u4fc2\u3092\u8868\u3059\u3002Order\u304a\u3088\u3073Book\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3078\u306e\u5916\u90e8\u30ad\u30fc\u53c2\u7167\u3092\u542b\u3080\u3002<\/li>\n<\/ol>\n<p><strong>\u95a2\u4fc2\uff1a<\/strong><\/p>\n<ul>\n<li>1\u518a\u306e\u66f8\u7c4d\u306f\u8907\u6570\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u5c5e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff08\u591a\u5bfe\u591a\uff09\u3002<\/li>\n<li>1\u3064\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u306f\u8907\u6570\u306e\u66f8\u7c4d\u304c\u5b58\u5728\u3067\u304d\u308b\uff081\u5bfe\u591a\uff09\u3002<\/li>\n<li>1\u4eba\u306e\u9867\u5ba2\u306f\u8907\u6570\u306e\u6ce8\u6587\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\uff081\u5bfe\u591a\uff09\u3002<\/li>\n<li>1\u3064\u306e\u6ce8\u6587\u306b\u306f\u8907\u6570\u306e\u66f8\u7c4d\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\uff08\u591a\u5bfe\u591a\uff09\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u3092\u8e0f\u307e\u3048\u3066\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u30b7\u30b9\u30c6\u30e0\u7528\u306eERD\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002ERD\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n<p><img fetchpriority=\"high\" alt=\"ERD for bookstore\" class=\"alignnone size-full wp-image-956\" decoding=\"async\" fetchpriority=\"high\" height=\"418\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/ERD-for-bookstore.png\" width=\"663\"\/><\/p>\n<p>\u3053\u306eERD\u56f3\u3067\u306f\u3001Book\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068Category\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u9593\u306b\u306f\u591a\u5bfe\u591a\u95a2\u4fc2\u304c\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30011\u518a\u306e\u66f8\u7c4d\u304c\u8907\u6570\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u5c5e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u30011\u3064\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u8907\u6570\u306e\u66f8\u7c4d\u304c\u5b58\u5728\u3067\u304d\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002Customer\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068Order\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u9593\u306b\u306f1\u5bfe\u591a\u95a2\u4fc2\u304c\u3042\u308a\u30011\u4eba\u306e\u9867\u5ba2\u304c\u8907\u6570\u306e\u6ce8\u6587\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u4e00\u65b9\u30011\u3064\u306e\u6ce8\u6587\u306f1\u4eba\u306e\u9867\u5ba2\u306b\u306e\u307f\u5c5e\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001Order\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068Book\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u9593\u306b\u306f\u591a\u5bfe\u591a\u95a2\u4fc2\u304c\u3042\u308a\u30011\u3064\u306e\u6ce8\u6587\u306b\u8907\u6570\u306e\u66f8\u7c4d\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u30011\u518a\u306e\u66f8\u7c4d\u304c\u8907\u6570\u306e\u6ce8\u6587\u306b\u542b\u307e\u308c\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<h3>Visual Paradigm\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306eSQL\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3059\u308b<\/h3>\n<blockquote>\n<p>\u30c6\u30fc\u30d6\u30eb book {<br \/>\nID int [\u4e3b\u30ad\u30fc\u3001\u81ea\u52d5\u5897\u52a0]<br \/>\n\u30bf\u30a4\u30c8\u30eb varchar<br \/>\n\u8457\u8005 varchar<br \/>\nISBN varchar<br \/>\n\u4fa1\u683c float<br \/>\n}<\/p>\n<p>\u30c6\u30fc\u30d6\u30eb category {<br \/>\nID int [\u4e3b\u30ad\u30fc\u3001\u81ea\u52d5\u5897\u52a0]<br \/>\n\u540d\u524d varchar<br \/>\n\u8aac\u660e varchar<br \/>\n}<\/p>\n<p>\u30c6\u30fc\u30d6\u30eb customer {<br \/>\nID int [\u4e3b\u30ad\u30fc\u3001\u81ea\u52d5\u5897\u52a0]<br \/>\n\u540d\u524d varchar<br \/>\n\u4f4f\u6240 varchar<br \/>\n\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9 varchar<br \/>\n}<\/p>\n<p>\u30c6\u30fc\u30d6\u30eb order {<br \/>\nID int [\u4e3b\u30ad\u30fc\u3001\u81ea\u52d5\u5897\u52a0]<br \/>\n\u6ce8\u6587\u65e5\u6642 datetime<br \/>\n\u5408\u8a08\u91d1\u984d float<br \/>\n\u9867\u5ba2ID int [\u53c2\u7167: &gt; customer.ID]<br \/>\n}<\/p>\n<p>\u30c6\u30fc\u30d6\u30eb book_category {<br \/>\n\u66f8\u7c4dID int [\u53c2\u7167: &gt; book.ID]<br \/>\n\u30ab\u30c6\u30b4\u30eaID int [\u53c2\u7167: &gt; category.ID]<br \/>\n}<\/p>\n<p>\u30c6\u30fc\u30d6\u30eb order_book {<br \/>\n\u6ce8\u6587ID int [\u53c2\u7167: &gt; order.ID]<br \/>\n\u66f8\u7c4dID int [\u53c2\u7167: &gt; book.ID]<br \/>\n}<\/p>\n<\/blockquote>\n<h2>\u7d50\u8ad6<\/h2>\n<p>ERD\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u95a2\u4fc2\u3092\u53ef\u8996\u5316\u3057\u3001\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u91cd\u8981\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u3068\u305d\u306e\u69cb\u9020\u3092\u660e\u78ba\u304b\u3064\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u308bERD\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7d44\u7e54\u306e\u30cb\u30fc\u30ba\u3092\u652f\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u52b9\u7387\u7684\u3067\u52b9\u679c\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08\u3068\u7dad\u6301\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3068\u306f\u3001\u30c7\u30fc\u30bf\u304a\u3088\u3073\u305d\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u95a2\u4fc2\u3092\u8996\u899a\u7684\u306b\u8868\u73fe\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3067\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u30c4\u30fc\u30eb\u306e\u4e00\u3064\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3067\u3042\u308a\u3001\u56f3\u5f62\u8a18\u53f7\u3092\u7528\u3044\u3066\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u3092\u8868\u73fe\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001ERD\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u691c\u8a0e\u3057\u3001\u5b9f\u969b\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3067\u304d\u308b\u304b\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 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1\u5bfe1\uff081:1\uff09\uff1a1\u3064\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3001\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e1\u3064\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u95a2\u9023\u3059\u308b\u5834\u5408\u3002 1\u5bfe\u591a\uff081:N\uff09\uff1a1\u3064\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3001\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u95a2\u9023\u3059\u308b\u5834\u5408\u3002 \u591a\u5bfe\u591a\uff08N:M\uff09\uff1a\u8907\u6570\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3001\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u95a2\u9023\u3059\u308b\u5834\u5408\u3002 ERD\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u4f8b 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Category\uff1a\u66f8\u5e97\u5185\u306e\u66f8\u7c4d\u306e\u30ab\u30c6\u30b4\u30ea\u307e\u305f\u306f\u30b8\u30e3\u30f3\u30eb\u3092\u8868\u3059\u3002\u540d\u524d\u3084\u8aac\u660e\u306a\u3069\u306e\u5c5e\u6027\u3092\u542b\u3080\u3002 Customer\uff1a\u66f8\u5e97\u306b\u767b\u9332\u3057\u305f\u9867\u5ba2\u3092\u8868\u3059\u3002\u540d\u524d\u3001\u4f4f\u6240\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u5c5e\u6027\u3092\u542b\u3080\u3002 Order\uff1a\u9867\u5ba2\u304c\u884c\u3063\u305f\u6ce8\u6587\u3092\u8868\u3059\u3002\u6ce8\u6587\u65e5\u3001\u5408\u8a08\u91d1\u984d\u306a\u3069\u306e\u5c5e\u6027\u3092\u542b\u3080\u3002\u307e\u305f\u3001\u9867\u5ba2\u30a8\u30f3\u30c6\u30a3\u30c6<a href=\"https:\/\/guides.visual-paradigm.com\/ja\/building-an-online-bookstore-data-modeling-with-erd-and-dbml\/\" rel=\"bookmark\"><span class=\"screen-reader-text\">\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u306e\u69cb\u7bc9\uff1aERD\u3068DBML\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":6762,"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-6761","post","type-post","status-publish","format-standard","has-post-thumbnail","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>\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u306e\u69cb\u7bc9\uff1aERD\u3068DBML\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0 - Visual Paradigm Guides Japanese<\/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\/ja\/building-an-online-bookstore-data-modeling-with-erd-and-dbml\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u306e\u69cb\u7bc9\uff1aERD\u3068DBML\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0 - Visual Paradigm Guides Japanese\" \/>\n<meta property=\"og:description\" content=\"\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3068\u306f\u3001\u30c7\u30fc\u30bf\u304a\u3088\u3073\u305d\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u95a2\u4fc2\u3092\u8996\u899a\u7684\u306b\u8868\u73fe\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3067\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u30c4\u30fc\u30eb\u306e\u4e00\u3064\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3067\u3042\u308a\u3001\u56f3\u5f62\u8a18\u53f7\u3092\u7528\u3044\u3066\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u3092\u8868\u73fe\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001ERD\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u691c\u8a0e\u3057\u3001\u5b9f\u969b\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3067\u304d\u308b\u304b\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 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