{"image_url":null,"categories":["MySQL"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fstfuawsc.hatenadiary.org%2Fentry%2F20090304%2F1236144996\" title=\"CASE\u5f0f\u306e\u66f8\u5f0f - \u82d4\u306e\u4e00\u5ff5\u5ca9\u3092\u3082\u901a\u3059 ~\u76ee\u6307\u305b\u3044\u3064\u304b\u306f\u30d7\u30ed\u30b0\u30e9\u30de~\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2009-03-04 14:36:36","blog_title":"\u82d4\u306e\u4e00\u5ff5\u5ca9\u3092\u3082\u901a\u3059 ~\u76ee\u6307\u305b\u3044\u3064\u304b\u306f\u30d7\u30ed\u30b0\u30e9\u30de~","author_url":"https://blog.hatena.ne.jp/stfuawsc/","title":"CASE\u5f0f\u306e\u66f8\u5f0f","description":"\u3057\u3064\u3053\u304f\u7d9a\u304fMySQL\u30cd\u30bf\u3002 CASE WHEN [\u5224\u5b9a\u5f0f] THEN [\u5f0f\u304c\u771f\u306e\u5834\u5408] ELSE [WHEN\u53e5\u306b\u8a72\u5f53\u3057\u306a\u304b\u3063\u305f\u5834\u5408] ENDWHEN\u301cTHEN\u301c\u306f\u8ffd\u52a0\u3059\u308b\u4e8b\u3082\u53ef\u80fd\u3002\u305d\u306e\u5834\u5408\u3001WHEN\u53e5\u304c\u771f\u306b\u306a\u3063\u305f\u6642\u70b9\u3067\u5224\u5b9a\u306f\u7d42\u4e86\u3057\u3001\u4ee5\u964d\u306eWHEN\u53e5\u306f\u7121\u8996\u3055\u308c\u308b\u3089\u3057\u3044\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3002 \u30ab\u30e9\u30e0\u3068\u3057\u3066\u96c6\u8a08\u7b49\u3067\u5229\u7528\u3057\u305f\u3044\u5834\u5408\u306f\u3001CASE\u301cEND\u3092()\u3067\u62ec\u3063\u3066AS column_name\u3068\u5225\u540d\u3092\u4ed8\u3051\u3066\u3084\u308c\u3070\u826f\u3044\u3002 CASE\u5f0f\u3092\u4f7f\u3044\u3053\u306a\u305b\u3070\u3001\u30a2\u30d7\u30ea\u5074\u3067\u30a6\u30c0\u30a6\u30c0\u3084\u3063\u3066\u305f\u51e6\u7406\u3092\u3001DB\u306b\u3069\u3093\u3069\u3093\u62bc\u3057\u4ed8\u3051\u308b\u4e8b\u304c\u51fa\u6765\u308b\u3093\u3058\u3083\u306a\u304b\u308d\u3046\u304b?? SQL\u697d\u3057\u3044\u306a\u301c(\u30fbx\u30fb ).o0\u25cb","version":"1.0","author_name":"stfuawsc","provider_name":"Hatena Blog","url":"https://stfuawsc.hatenadiary.org/entry/20090304/1236144996","height":"190","width":"100%","type":"rich","provider_url":"https://hatena.blog","blog_url":"https://stfuawsc.hatenadiary.org/"}