{"provider_url":"https://hatena.blog","description":"\u8907\u6570\u30ab\u30e9\u30e0\u3067\u30e6\u30cb\u30fc\u30af\u30ad\u30fc\u3092\u4f5c\u308a\u305f\u3044\u3068\u304d\u3001\u91cd\u8907\u304c\u3042\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b mysql> ALTER TABLE hoge ADD UNIQUE (a,b,c); ERROR 1062 (23000): Duplicate entry 'aiueokakikukekoaaaaa' for key 2 IGNORE\u3092\u3064\u3051\u308b\u3068\u3001\u91cd\u8907\u3057\u305f\u30ab\u30e9\u30e0\u306f\u6700\u521d\u306e\u5206\u3060\u3051\u63a1\u7528\u3055\u308c\u3066\u6b63\u5e38\u7d42\u4e86\u3059\u308b mysql> ALTER IGNORE TABLE hoge ADD UNIQUE (a,b,c); Query OK, 225165 rows affected (52.52 sec) Records: 225165 Duplic\u2026","height":"190","blog_title":"\u63ee\u767a\u6027\u306e\u30e1\u30e2\uff12","author_name":"iww","url":"https://iww.hateblo.jp/entry/20101103/having","provider_name":"Hatena Blog","published":"2010-11-03 00:00:00","author_url":"https://blog.hatena.ne.jp/iww/","title":"\u8907\u6570\u30ab\u30e9\u30e0\u3067\u30e6\u30cb\u30fc\u30af\u30ad\u30fc\u3092\u4f5c\u308b","blog_url":"https://iww.hateblo.jp/","image_url":null,"categories":["MySQL"],"width":"100%","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fiww.hateblo.jp%2Fentry%2F20101103%2Fhaving\" title=\"\u8907\u6570\u30ab\u30e9\u30e0\u3067\u30e6\u30cb\u30fc\u30af\u30ad\u30fc\u3092\u4f5c\u308b - \u63ee\u767a\u6027\u306e\u30e1\u30e2\uff12\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich"}