{"categories":["Rails"],"title":" created_on \u3088\u308a created_at \u3092\u4f7f\u3046\u3002","provider_name":"Hatena Blog","author_name":"koseki2","blog_url":"https://koseki.hatenablog.com/","published":"2007-06-27 00:00:01","blog_title":"\u3053\u305b\u304d\u306e\u6280\u8853\u65e5\u8a18","url":"https://koseki.hatenablog.com/entry/20070627/createdonat","version":"1.0","description":"\u30c6\u30fc\u30d6\u30eb\u306bcreated_at\u3068\u3044\u3046\u30ab\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u304a\u304f\u3068\u3001ActiveRecord\u304c\u81ea\u52d5\u7684\u306b\u30c7\u30fc\u30bf\u3092\u4f5c\u6210\u3057\u305f\u65e5\u6642\u3092\u8a18\u9332\u3057\u3066\u304f\u308c\u308b\u3002Magic Field Name\u3002\u4f3c\u305f\u3088\u3046\u306a\u306e\u306b\u3001\u4ee5\u4e0b\u306e4\u7a2e\u985e\u304c\u3042\u308b\u3002 created_at \u2026\u2026 \u4f5c\u6210\u65e5\u6642 created_on \u2026\u2026 \u4f5c\u6210\u65e5 updated_at \u2026\u2026 \u66f4\u65b0\u65e5\u6642 updated_on \u2026\u2026 \u66f4\u65b0\u65e5 on\u3068at\u306e\u9055\u3044\u306f\u3001\u65e5\u4ed8\u3060\u3051\u3067\u306a\u304f\u6642\u9593\u3082\u8a18\u9332\u3059\u308b\u304b\u3069\u3046\u304b\u3002on\u306f\u65e5\u4ed8\u306e\u307f\u3092\u8a18\u9332\u3059\u308b\u3002\u305f\u3060\u3057\u3001\u30ab\u30e9\u30e0\u306e\u578b\u306bdatetime\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u52d5\u4f5c\u306f\u540c\u3058\u306b\u306a\u308b(Oracle\u306e\u5834\u5408\u306b\u7570\u306a\u308b\uff1f)\u3002 http://wiki.rubyonrails.org/ra\u2026","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkoseki.hatenablog.com%2Fentry%2F20070627%2Fcreatedonat\" title=\" created_on \u3088\u308a created_at \u3092\u4f7f\u3046\u3002 - \u3053\u305b\u304d\u306e\u6280\u8853\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","image_url":null,"type":"rich","author_url":"https://blog.hatena.ne.jp/koseki2/","height":"190"}