{"author_name":"tomotomo1129","url":"https://job-info.hateblo.jp/entry/2024/09/18/224804","width":"100%","published":"2024-09-18 22:48:05","categories":["MySQL","SQL","DB"],"description":"MySQL\u3067NULLIF\u306e\u66f8\u304d\u65b9 NULLIF\u306e\u57fa\u672c\u69cb\u6587 NULLIF\u306e\u52d5\u4f5c\u4f8b \u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306e\u4f7f\u7528\u4f8b NULLIF\u3092\u4f7f\u3063\u305f\u5fdc\u7528\u4f8b NULLIF\u3068CASE\u6587\u306e\u9055\u3044 NULLIF\u306e\u5229\u70b9\u3068\u6ce8\u610f\u70b9 \u7d50\u8ad6 MySQL\u3067NULLIF\u306e\u66f8\u304d\u65b9 MySQL\u3067NULLIF\u306f\u30012\u3064\u306e\u5f15\u6570\u3092\u6bd4\u8f03\u3057\u3001\u305d\u308c\u3089\u304c\u7b49\u3057\u3044\u5834\u5408\u306bNULL\u3092\u8fd4\u3057\u3001\u7b49\u3057\u304f\u306a\u3044\u5834\u5408\u306f\u6700\u521d\u306e\u5f15\u6570\u3092\u305d\u306e\u307e\u307e\u8fd4\u3059\u95a2\u6570\u3067\u3059\u3002 \u4e3b\u306b\u7279\u5b9a\u306e\u5024\u3092NULL\u306b\u7f6e\u304d\u63db\u3048\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002 \u305f\u3068\u3048\u3070\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u3067\u7279\u5b9a\u306e\u5024\u304c\u7121\u52b9\u307e\u305f\u306f\u4e0d\u8981\u3067\u3042\u308b\u5834\u5408\u3001\u305d\u308c\u3092NULL\u3068\u3057\u3066\u6271\u3044\u305f\u3044\u3068\u304d\u306b\u4fbf\u5229\u3067\u3059\u3002 NULLIF\u306e\u57fa\u672c\u69cb\u6587 NULLIF(expr1, expr2)\u2026","type":"rich","title":"MySQL\u3067NULLIF\u306e\u66f8\u304d\u65b9","author_url":"https://blog.hatena.ne.jp/tomotomo1129/","blog_title":"Web\u958b\u767a\u306b\u304a\u3051\u308b\u77e5\u898b\u5171\u6709\u7cfb\u30da\u30fc\u30b8","provider_url":"https://hatena.blog","version":"1.0","blog_url":"https://job-info.hateblo.jp/","image_url":null,"provider_name":"Hatena Blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjob-info.hateblo.jp%2Fentry%2F2024%2F09%2F18%2F224804\" title=\"MySQL\u3067NULLIF\u306e\u66f8\u304d\u65b9 - Web\u958b\u767a\u306b\u304a\u3051\u308b\u77e5\u898b\u5171\u6709\u7cfb\u30da\u30fc\u30b8\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}