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Group by on Nested Query ??

Ale
Hi all!
Can anyone help me?
My problem is a group by!
For example

select tabA.x , tabB.y, (select sum(tabC.z).... ) as q
..
..
..
group by tabA.x , tabB.y, q

I obtain an error!
What's wrong ??

Thanks a lot!
Feb 12 '07 #1
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