{"image_url":null,"title":"PostgreSQL \u30e1\u30e2","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Farcanum.hatenablog.com%2Fentry%2F20110318%2F1300456692\" title=\"PostgreSQL \u30e1\u30e2 - arcanum_jp\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","width":"100%","published":"2011-03-18 22:58:12","author_url":"https://blog.hatena.ne.jp/arcanum_jp/","version":"1.0","categories":["\u52c9\u5f37","\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf","\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9"],"blog_title":"arcanum_jp\u2019s blog","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","author_name":"arcanum_jp","url":"https://arcanum.hatenablog.com/entry/20110318/1300456692","description":"\u307b\u3093\u3068\u306b\u30e1\u30e2\u3060\u3088\u30c6\u30fc\u30d6\u30eb\u306b\u5217\u3092\u8ffd\u52a0\u3059\u308b ALTER TABLE table_name add column col_name char(100)\u30ab\u30e9\u30e0\u306e\u5c5e\u6027\u3092\u5909\u3048\u308b ALTER TABLE table_name alter column col_name type char(200)Oracle\u306e\u5834\u5408\u306f ALTER TABLE table_name modify column col_name char(200)\u3061\u3087\u3063\u3068\u9055\u3046\u3002","type":"rich","blog_url":"https://arcanum.hatenablog.com/"}