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To find the count of rows returned by minus in oralce

Posted on 2004-03-27
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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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Question by:djeanthi
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Lowfatspread earned 50 total points
ID: 10697607
have you tried

select count(*) from (
select * from a
minus
select * from b
) as C


?
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Expert Comment

by:Lowfatspread
ID: 10697613
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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