21
爲什麼這個查詢不起作用?以這種方式刪除 - 我無法指定目標表?
DELETE FROM recent_edits
WHERE trackid NOT IN
(select * from (SELECT DISTINCT history.trackid
FROM history JOIN recent_edits ON history.trackid=recent_edits.trackid
GROUP BY recent_edits.trackid) as t);
這個訣竅是奧古斯托告訴你的。 Ciao;) – 2011-04-28 10:40:34
@Augusto:很高興你覺得它很有用。你的回答也是對的。 :) – 2011-04-28 11:50:24
@Augusto,另見http://stackoverflow.com/a/8333417/632951 – Pacerier 2015-02-24 03:35:03