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From: Domoszlai László <dlacko@finit.hu>
To: SQL PostgreSQL (E-mail) <pgsql-sql@postgresql.org>
Subject: set difference
Date: Tue, 15 Oct 2002 14:52:23 +0200
Message-ID: <D6CD29CE4DF67F47A11FB6CF5EBE15D10ECC55@gedeon.finit.local> (raw)

Hello,

I would like to make symmetrical(set) difference in a query.
But the simpliest way I could find is 

select id from a 
except
select id from b
union 
select id from b
except
select id from a

Is there any better solution for this problem?

Thanks
Laca

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