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我如何能在表中删除所有行recentposts
如何删除所有行除了50最新
DELETE FROM recentposts WHERE recentposts.`userId` = 12 AND recentposts.`Id`
NOT IN (SELECT * FROM recentposts WHERE `userId` = 12 ORDER BY viewdate LIMIT 50)
我尝试了很多与此类似,但他们没有工作。有人能告诉我如何在Mysql中做到这一点。
你是指最新的5个或最新的50个? – gbn