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"captain" <captain_2010_at_yahoo.com> a écrit dans le message de
news:27aae5ab.0407272342.4d8e5bb5_at_posting.google.com...
> hi all,
>
> I am really do not know how to get this. Tried all types of queries.
> The requirement is as below
>
> itemid maxqty Mdate (date is when the max qty went out)
> 001 5 5/1/2004
> 002 2 5/10/2004
>
> The actual table has all transaction data as below.
> itemid qty date
> 001 5 5/1/2004
> 001 3 5/2/2004
> 001 3 5/3/2004
> 001 2 5/4/2004
> 002 0 5/1/2004
> .....
> 002 2 5/10/2004
>
> one query is
> select itemid,max(qty) from mTran
>
> with the above require which date it occurred.
>
> Please help
>
> Cap2010
Try this:
select itemid, quantity, mdate
from (select itemid, qty, mdate,
rank() over (partition by itemid order by qty desc) rn
from mtran)
where rn=1
/
-- Regards Michel CadotReceived on Wed Jul 28 2004 - 13:41:32 CDT