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  2. MIDRANGE-L
  3. March 2011

sub-select in SQL

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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