{"blog_url":"https://www.doodle-office.work/","url":"https://www.doodle-office.work/entry/sql-select-constant-case-expression","provider_url":"https://hatena.blog","published":"2026-07-22 08:04:47","height":"190","author_name":"doodle-on-web","type":"rich","blog_title":"doodle-on-web","title":"SQL\u306eSELECT\u3067\u56fa\u5b9a\u5024\u30fb\u8a08\u7b97\u5217\u3092\u8fd4\u3059\u65b9\u6cd5\uff5cCASE\u5f0f\u3067\u533a\u5206\u30b3\u30fc\u30c9\u3092\u65e5\u672c\u8a9e\u540d\u306b\u5909\u63db\u3059\u308b\u5b9f\u8df5\u30ac\u30a4\u30c9","image_url":null,"categories":["SQL","CASE\u5f0f","SELECT","\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.doodle-office.work%2Fentry%2Fsql-select-constant-case-expression\" title=\"SQL\u306eSELECT\u3067\u56fa\u5b9a\u5024\u30fb\u8a08\u7b97\u5217\u3092\u8fd4\u3059\u65b9\u6cd5\uff5cCASE\u5f0f\u3067\u533a\u5206\u30b3\u30fc\u30c9\u3092\u65e5\u672c\u8a9e\u540d\u306b\u5909\u63db\u3059\u308b\u5b9f\u8df5\u30ac\u30a4\u30c9 - doodle-on-web\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","version":"1.0","description":"\u300c\u533a\u5206\u30b3\u30fc\u30c9\u306e 0\u30fb1\u30fb2 \u3092\u3001\u30a2\u30d7\u30ea\u5074\u306e\u30b3\u30fc\u30c9\u3067 if \u3092\u66f8\u3044\u3066\u300e\u672a\u51e6\u7406\u30fb\u51e6\u7406\u4e2d\u30fb\u5b8c\u4e86\u300f\u306b\u5909\u63db\u3057\u3066\u3044\u305f\u300d\u2014\u2014\u305d\u3093\u306a\u51e6\u7406\u306f\u3001SQL\u306eSELECT\u3060\u3051\u3067\u5b8c\u7d50\u3067\u304d\u307e\u3059\u3002\u30c6\u30fc\u30d6\u30eb\u306e\u5217\u3092\u305d\u306e\u307e\u307e\u8fd4\u3059\u3060\u3051\u3067\u306a\u304f\u3001\u56fa\u5b9a\u5024\u3084\u8a08\u7b97\u7d50\u679c\u3001\u6761\u4ef6\u3067\u5207\u308a\u66ff\u3048\u305f\u5024\u307e\u3067\u8fd4\u305b\u308b\u304b\u3089\u3067\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u56fa\u5b9a\u5024\uff08\u5b9a\u6570\u5217\uff09\u3068CASE\u5f0f\u3092\u4f7f\u3063\u3066\u3001\u30b3\u30fc\u30c9\u3092\u65e5\u672c\u8a9e\u540d\u306b\u5909\u63db\u3057\u3066\u30ec\u30dd\u30fc\u30c8\u51fa\u529b\u3059\u308b\u3068\u3053\u308d\u307e\u3067\u3092\u3001\u5b9f\u884c\u7d50\u679c\u306e\u30a4\u30e1\u30fc\u30b8\u4ed8\u304d\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002 SELECT\u306b\u306f\u300c\u5f0f\u300d\u306a\u3089\u4f55\u3067\u3082\u66f8\u3051\u308b SELECT\u306e\u5f8c\u308d\u306b\u306f\u3001\u5217\u540d\u3060\u3051\u3067\u306a\u304f\u5f0f\uff08expression\uff09\u3092\u66f8\u3051\u307e\u3059\u3002\u5217\u540d\u306f\u305d\u306e\u4e00\u7a2e\u306b\u3059\u304e\u307e\u305b\u3093\u3002 SELECT id, price, price \u2026","width":"100%","author_url":"https://blog.hatena.ne.jp/doodle-on-web/"}