Query suggestions / help

Question

Hi @ll,
I am creating a query for searching order / invoices. Only customers should be displayed, who ordered least 90 days before and there is no order for a earlier time.
SELECT MAX(T0.DocDate), T0.CardCode FROM OINV T0
WHERE DATEDIFF(day, MAX(T0.DocDate), getdate()) <= 90
GROUP BY T0.CardCode, T0.DocDate
ORDER BY T0.CardCode, T0.DocDate DESC
Datediff works well, but not with the MAX statement. If i use only Datediff(day, T0.DocDate, getdate()) = 90, it displays also customers, who ordered in a earlier time.
Regards Steffen

Answer 1

Under stood try this
select A.CardCode from (
select T0.Docdate,T0.CardCode From OINV T0
where
T0.CardCode not in (Select S0.CardCode from OINV S0 where S0.Docdate between getdate()-90 and getdate())
)A
Group By
A.CardCode
Regards,
Thanga Raj.K
Edited by: Thanga Raj K on Jun 9, 2009 12:30 PM