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SQL Query

Posted on 2012-03-25
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Last Modified: 2012-03-25
I have a table as below

Material   SeqNum   Controlkey
22             1                  x
22             2                  x
22             3                  x
22             4                  x
24             1                  x
24             2                  x

I have to update controlkey='y' for the max(seqno) for each material. I came up with the query

update Table_3
set ckey='ybp3'
from Table_3
where seqno=(select MAX(seqno)
from Table_3
group by Material)

But this is giving me two values in subquery . Here in the above query I need to update table as

Material   SeqNum   Controlkey
22             1                  x
22             2                  x
22             3                  x
22             4                  y
24             1                  x
24             2                  y


Thanks !
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Question by:himabindu_nvn
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2 Comments
 
LVL 8

Accepted Solution

by:
fundacionrts earned 500 total points
ID: 37762958
update
      Table_3_update
set
      ckey='ybp3'
from
      Table_3 Table_3_update
where
      seqno=(select MAX(seqno)
                  from Table_3 t3
                  where t3.Material = Table_3_update.Material
                  group by Material)
0
 

Author Closing Comment

by:himabindu_nvn
ID: 37762973
Thank you!
0

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