{"title":"\u5b9f\u884c\u8a08\u753b\u78ba\u8a8d","blog_title":"HTN20190109\u306e\u65e5\u8a18","blog_url":"https://htn20190109.hatenablog.com/","author_name":"HTN20190109","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2019%2F03%2F24%2F002439\" title=\"\u5b9f\u884c\u8a08\u753b\u78ba\u8a8d - HTN20190109\u306e\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>","url":"https://htn20190109.hatenablog.com/entry/2019/03/24/002439","author_url":"https://blog.hatena.ne.jp/HTN20190109/","version":"1.0","description":"MySQL explain select * from tab1 where col1=2\\G PREPARE stmt2 FROM 'explain SELECT * from tab6 where col1=? and col1=?';SET @a = 2;SET @b = 2;EXECUTE stmt2 USING @a,@b\\GDEALLOCATE PREPARE stmt2; --\u30aa\u30d7\u30c6\u30a3\u30de\u30a4\u30b6\u306b\u3088\u308b\u30ea\u30e9\u30a4\u30c8\u5f8c\u306eSQL\u8868\u793aexplain extended select * from tab1 where col1=2\\Gshow warnings; explain PARTITION\u2026","width":"100%","provider_name":"Hatena Blog","type":"rich","image_url":null,"published":"2019-03-24 00:24:39","height":"190","categories":["DB"]}