{"description":"\u5927\u96d1\u628a\u306a\u7d50\u5408\u3068\u306f\u3001\u300cA\u306e\u3046\u3061B\u306b\u3042\u308b/\u306a\u3044\u3082\u306e\u300d\u3068\u3059\u308b\u3002 SELECT * FROM A WHERE EXISTS (SELECT * FROM B WHERE A.hoge = B.hoge) / NOT EXISTS (...) SELECT * FROM A WHERE A.hoge IN (SELECT hoge FROM B) / NOT IN (..) SELECT * FROM A LEFT JOIN B ON A.hoge = B.hoge WHERE B IS NOT NULL / IS NULL \u610f\u5473\u7684\u306b\u306f1\u3064\u76ee\u304c\u6b63\u3057\u3044\u3093\u3060\u3051\u3069\u3001\u305d\u308c\u305e\u308c\u8a08\u753b\u304c\u7570\u306a\u3063\u3066\u3001\u691c\u7d22\u306e\u901f\u5ea6\u3082\u9055\u3063\u305f\u308a\u2026","categories":["postgreSQL"],"type":"rich","blog_title":"@katzchang.contexts","width":"100%","provider_name":"Hatena Blog","blog_url":"https://katzchang.hatenadiary.org/","image_url":null,"height":"190","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkatzchang.hatenadiary.org%2Fentry%2F20080128%2F1201485622\" title=\"\u5927\u96d1\u628a\u306a\u7d50\u5408\u306e3\u3064\u306e\u3084\u308a\u65b9 - @katzchang.contexts\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2008-01-28 11:00:22","title":"\u5927\u96d1\u628a\u306a\u7d50\u5408\u306e3\u3064\u306e\u3084\u308a\u65b9","url":"https://katzchang.hatenadiary.org/entry/20080128/1201485622","version":"1.0","author_name":"katzchang","author_url":"https://blog.hatena.ne.jp/katzchang/"}