OINV query max(docdate)

Hi Expert!

I just want to ask a question about sql queries. I would like to make a query with the latest DocDate like this:

SELECT MAX(T0.[DocDate]) , T0.[CardCode] , T0.[DocNum]

FROM  [dbo].[OINV] T0

WHERE T0.[CardCode] ='V1103'

GROUP BY T0.[CardCode], T0.[DocNum]

And the result that not so good. The queries generator appear all rows, not just the latest date. Can you help me?

Thanks,

Zoli