DELETE FROM tusers WHERE (code,name) in(SELECT code,name FROM tusers GROUP BY code,name HAVING COUNT(*) > 1)Why can"t I write like this? How do you write this?
DELETE FROM tusers WHERE (code,name) in(SELECT code,name FROM tusers GROUP BY code,name HAVING COUNT(*) > 1)Why can"t I write like this? How do you write this?
Why can't you write like this
--
Delete from [tusers] where id not in
(
SELECT MAX(id) --max(id) :min(id)
FROM [tusers]
GROUP BY code,name --group by
)
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