---------- Forwarded message ----------
From:
Nacef LABIDI <
nacef(dot)l(at)gmail(dot)com>
Date: Thu, May 22, 2008 at 8:45 PM
Subject: [SQL] Substract queries
To:
pgsql-sql(at)postgresql(dot)orgHi all,
I was wondering how can I substract result between select queries. I mean I want to issue a query that does this :
(select * from mytable where condition1) - (select * from mytable where condition2)
Thanks to all
Nacef