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cool deal. Thank you.


"Charles Wilt" <charles.wilt@xxxxxxxxx> wrote in message
news:mailman.31862.1299090018.2702.midrange-l@xxxxxxxxxxxx...
Once.

If it was a correlated sub-query....the answer would be different...

Also note you don't need the GROUP BY...

update
BL1025INP a
set
a.INERRFLG = 'Y'
where
a.inseq# in (
select inseq#
from BL1025INP b
where
b.inerrFlg = 'Y'
AND B.FLD = A.FLD
)

Charles

On Wed, Mar 2, 2011 at 1:02 PM, hockchai Lim
<lim.hock-chai@xxxxxxxxxxxxxxx> wrote:
For the sql below, does any one know if the sub-select in the where
statement gets execute only once or it gets execute for each row in
BL1025INP file?

thanks

update
BL1025INP a
set
a.INERRFLG = 'Y'
where
a.inseq# in (
select inseq#
from BL1025INP b
where
b.inerrFlg = 'Y'
group by
INSEQ#)


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