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To find the count of rows returned by minus in oralce

djeanthi
djeanthi asked
on
Medium Priority
510 Views
Last Modified: 2008-03-03
hi,

select * from a
minus
select * from b

here how to find the no. of rows returned by the above query.

thanks in advance

Regards

S.Djeanthi
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Top Expert 2011
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CERTIFIED EXPERT
Top Expert 2011

Commented:
you could also restructure the query to use not exists

e.g.

select count(*)
 from a
 where not exists (select * from b
    where a.primary key = b.primary key)
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