{"categories":["Data Model"],"type":"rich","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/s/starful/20250525/20250525154852.png","provider_name":"Hatena Blog","version":"1.0","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fokpy.net%2Fentry%2F2025%2F06%2F01%2F112948\" title=\"\u30c7\u30fc\u30bf\u7ba1\u7406\u306e\u57fa\u790e: \u95a2\u4fc2\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306e\u91cd\u8981\u6027 - okpy\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://okpy.net/","width":"100%","description":"\u95a2\u4fc2\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\uff08Relational Data Model\uff09\u3068\u306f\uff1f \u95a2\u4fc2\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3068\u306f\u3001\u30c7\u30fc\u30bf\u3092\u300c\u95a2\u4fc2\uff08Relation\uff09\u300d\uff1d\u8868\u5f62\u5f0f\u306e\u69cb\u9020\u3067\u8868\u73fe\u3059\u308b\u30e2\u30c7\u30eb\u3067\u3042\u308a\u3001\u73fe\u5728\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08RDBMS\uff09\u306e\u57fa\u790e\u3068\u306a\u308b\u7406\u8ad6\u3067\u3042\u308b\u30021970\u5e74\u306bE.F.\u30b3\u30c3\u30c9\uff08Edgar F. Codd\uff09\u306b\u3088\u3063\u3066\u63d0\u5531\u3055\u308c\u3001\u69cb\u9020\u5316\u3055\u308c\u305f\u60c5\u5831\u306e\u7ba1\u7406\u3068\u64cd\u4f5c\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002 \u95a2\u4fc2\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306e\u5c0e\u5165\u304c\u5927\u304d\u306a\u52b9\u679c\u3092\u767a\u63ee\u3057\u305f\u4e00\u4f8b\u3068\u3057\u3066\u3001\u3042\u308b\u5730\u65b9\u81ea\u6cbb\u4f53\u306e\u6587\u66f8\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u5237\u65b0\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u3042\u308b\u3002\u5f93\u6765\u306fExcel\u30d5\u30a1\u30a4\u30eb\u3067\u7ba1\u7406\u3055\u308c\u3066\u3044\u305f\u300c\u6587\u66f8\u300d\u300c\u62c5\u5f53\u90e8\u7f72\u300d\u300c\u4f5c\u6210\u8005\u300d\u300c\u66f4\u65b0\u5c65\u6b74\u300d\u306a\u3069\u306e\u60c5\u5831\u3092\u4e00\u5143\u5316\u3059\u308b\u3053\u3068\u304c\u76ee\u7684\u3060\u3063\u305f\u2026","url":"https://okpy.net/entry/2025/06/01/112948","author_name":"starful","blog_title":"okpy","published":"2025-06-01 11:29:48","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/starful/","title":"\u30c7\u30fc\u30bf\u7ba1\u7406\u306e\u57fa\u790e: \u95a2\u4fc2\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306e\u91cd\u8981\u6027"}