时间:2021-07-01 10:21:17 帮助过:2人阅读
改写成下面就行了:
delete from tbl where id in ( select a.id from ( select max(id) id from tbl a where EXISTS ( select 1 from tbl b where a.tac=b.tac group by tac HAVING count(1)>1 ) group by tac ) a )
也就是说将select出的结果再通过中间表select一遍,这样就规避了错误。注意,这个问题只出现于mysql,mssql和oracle不会出现此问题。
引用自:![脚本之家](http://www.jb51.net/article/60926.htm)
mysql中You can’t specify target table for update in FROM clause错误解决方法
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