您不能在FROM子句中为更新指定目标表'A'

Question

这是我的要求

> DELETE FROM A WHERE id in (    Select
> id From A    Left Join B on A.id=B.id 
> Where B.id is null )

当我执行此操作时,我有这个错误

您不能在FROM子句中为更新指定目标表'A'

Answer 1

也许你可以这样做呢？

DELETE FROM A WHERE id NOT IN (SELECT DISTINCT B.id FROM B);