{"title":"\u3010MySQL\u3011ON DUPLICATE KEY UPDATE","blog_url":"https://www.pospome.work/","image_url":null,"published":"2013-06-02 19:53:29","width":"100%","provider_name":"Hatena Blog","height":"190","description":"ON DUPLICATE KEY UPDATE \u306f \u30c7\u30fc\u30bf\u3092 INSERT \u3059\u308b\u6642\u306b \u30e6\u30cb\u30fc\u30af\u5236\u7d04\u306b\u9055\u53cd\u3057\u3066\u3044\u308c\u3070\u4efb\u610f\u306eUPDATE\u3092\u5b9f\u884c\u3057\u3066\u304f\u308c\u308b\u3002\u65e5\u4ed8\u3054\u3068\u306e\u4f55\u304b\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3092\u66f4\u65b0\u3059\u308b\u5834\u5408\u306f\u4ee5\u4e0b\u306b\u306a\u308b\u3002 \uff08hit_date\u306b\u306f\u30e6\u30cb\u30fc\u30af\u5236\u7d04\u3092\u4ed8\u3051\u3066\u304a\u304f\u3002\uff09INSERT INTO hit_counter(hit_date, cnt) VALUES(CURRENT_DATE, 1) ON DUPLICATE KEY UPDATE cnt = cnt + 1;hit_date\u304c\u30e6\u30cb\u30fc\u30af\u5236\u7d04\u306a\u306e\u3067\u3001 \u3059\u3067\u306b\u305d\u306e\u65e5\u306e\u884c\u304c\u5b58\u5728\u3057\u305f\u5834\u5408\u306f cnt = cnt + 1 \u3092\u5b9f\u884c\u3059\u308b\u3002 \u305d\u306e\u65e5\u306e\u884c\u304c\u5b58\u5728\u2026","url":"https://www.pospome.work/entry/20130602/1370170409","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.pospome.work%2Fentry%2F20130602%2F1370170409\" title=\"\u3010MySQL\u3011ON DUPLICATE KEY UPDATE - pospome\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["MySQL"],"provider_url":"https://hatena.blog","blog_title":"pospome\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u65e5\u8a18","author_name":"pospome","version":"1.0","author_url":"https://blog.hatena.ne.jp/pospome/","type":"rich"}