{"categories":["mysql"],"url":"https://libkazz.hatenadiary.org/entry/20060809/1155138102","image_url":null,"height":"190","author_name":"libkazz","width":"100%","title":"\u548c\u96c6\u5408","published":"2006-08-09 00:41:42","version":"1.0","blog_url":"https://libkazz.hatenadiary.org/","type":"rich","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/libkazz/","blog_title":"memo_ruby","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Flibkazz.hatenadiary.org%2Fentry%2F20060809%2F1155138102\" title=\"\u548c\u96c6\u5408 - memo_ruby\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"2\u8868\u306e\u548c\u96c6\u5408\u3092\u53d6\u308bSQL\u3067\u3061\u3087\u3063\u3068\u82e6\u52b4\u3057\u305f\u3002 UNION\u53e5\u3092\u4f7f\u3063\u3066\u8a18\u8ff0\u3059\u308b\u306e\u3060\u304c\u3001\u6587\u5b57\u30b3\u30fc\u30c9\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3002 DB\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u306fUTF8\u306b\u8a2d\u5b9a\u3057\u3066\u3042\u308b\u3002 \u5177\u4f53\u7684\u306b\u306f A\u8868 ID, DATE, TITLE, TEXT B\u8868 ID, DATE, TEXT \u3068\u3044\u3046\u8868\u306e\u548c\u96c6\u5408\u3092\u53d6\u3063\u3066 C\u8868 ID, DATE, TITLE, TEXT \u3092\u4f5c\u308d\u3046\u3068\u3057\u305f\u3002 B\u8868\u306b\u306fTITLE\u304c\u306a\u3044\u306e\u3067C\u8868\u3067\u306f\u7a7a\u306e\u30bb\u30eb\u304c\u3067\u304d\u308b\u3053\u3068\u306b\u306a\u308b\u3002\u6700\u521dSQL\u306f\u3053\u3093\u306a\u611f\u3058\u3067\u66f8\u3044\u305f\u3002 1: select ID, DATE, TITLE, TEXT 2: from A 3: union all 4: select ID, DATE, '' \u2026","provider_url":"https://hatena.blog"}