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From: Michael Agbaglo <byteshifter@shifted-bytes.de>
To: pgsql-sql@postgresql.org
Subject: syntax for access an alias in the where clause ?
Date: Wed, 19 Jun 2002 20:03:28 +0200
Message-ID: <3D10C770.7040100@shifted-bytes.de> (raw)

Hi !

It's long ago since I used SQL :-)

select [expression 1] as [alias 1], [expression 2] as [alias 2]
where [alias 1] < [alias 2]
order by [alias 2] - [alias 1]

---> ERROR:  Attribute '[alias 1]' not found

I found a lot of 'select [expression] as' but I've never seen somebody 
accessing the alias ... Can't this be done ?

M.






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