{"author_url":"https://blog.hatena.ne.jp/takeru-c/","description":"DISTINCT\u3063\u3066COUNT()\u306e\u4e2d\u306b\u5165\u308c\u3066\u3082\u3044\u3044\u3093\u3060\u306d\u3002\u77e5\u3089\u306a\u304b\u3063\u305f\uff01\u3064\u30fc\u304b\u521d\u6b69\u3067\u3059\u304b\uff1f SELECT COUNT(DISTINCT \u30ab\u30e9\u30e0\u540d) AS \u30ab\u30a6\u30f3\u30c8\u6570 FROM \u30c6\u30fc\u30d6\u30eb\u540d; \u3053\u308c\u306f\u899a\u3048\u3068\u304f\u3068\u7d50\u69cb\u4fbf\u5229\u304b\u3082\u3002","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","url":"https://pumpkin.hatenablog.jp/entry/20080117/1200582235","categories":["SQL"],"title":"\u91cd\u8907\u3057\u3066\u308b\u3082\u306e\u3092\u307e\u3068\u3081\u3064\u3064\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u3088","blog_title":"\u30d1\u30f3\u30d7\u30ad\u30f3\u30b9\u30d1\u30a4\u30b9\u30e9\u30c6","height":"190","type":"rich","author_name":"takeru-c","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpumpkin.hatenablog.jp%2Fentry%2F20080117%2F1200582235\" title=\"\u91cd\u8907\u3057\u3066\u308b\u3082\u306e\u3092\u307e\u3068\u3081\u3064\u3064\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u3088 - \u30d1\u30f3\u30d7\u30ad\u30f3\u30b9\u30d1\u30a4\u30b9\u30e9\u30c6\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2008-01-17 00:03:55","version":"1.0","blog_url":"https://pumpkin.hatenablog.jp/","width":"100%"}