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How to update Flag for maximum amount in a a group


How to update Flag for maximum amount in a a group

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avdhut.k
avdhut.k
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Create Table #Temp
(
Pk_Id Int Identity(1,1),
Lnno Int,
Amount Int,
Flag Char(1)

)

Insert Into #Temp(Lnno,Amount)
Values (1,5),(1,10),(2,20),(2,25)

Select * from #Temp

Hi,
My requirement is,I want to update Flag as 'Y' for the Lnno which has maximum amount.

Please help this is urgent to me.

Thanks in Advance!
Mark Cowne
Mark Cowne
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WITH CTE AS (
SELECT Pk_Id,Lnno,Amount,Flag,
ROW_NUMBER() OVER(PARTITION BY Lnno ORDER BY Amount DESC) AS rn
FROM #Temp)
UPDATE CTE
SET Flag='Y'
WHERE rn=1;



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keebler96
keebler96
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update #temp
set flag = 'Y'
from #temp
join (select lnno ,max(amount) amount from #temp group by lnno) temp2 on
#temp.lnno = temp2.lnno
and #temp.amount = temp2.amount


avdhut.k
avdhut.k
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Thanks a lot!

Its work for me.
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