Re: Conditional expresion in query

Yes, it does.
Can't see why not.

Why do you ask that, Jorge?

Have you tried and it failed?

Best,
Oliveiros
----- Original Message -----
From: JORGE MALDONADO
To: pgsql-novice(at)postgresql(dot)org
Sent: Thursday, February 09, 2012 3:25 PM
Subject: [NOVICE] Conditional expresion in query

I have been reading about contidional expresions in a query and I have a question about the following example included in the documentation:

SELECT a,
CASE WHEN a=1 THEN 'one'
WHEN a=2 THEN 'two'
ELSE 'other'
END
FROM test;

I would like to make a few changes but I need to give a name (an alias) to the result of the CASE. Can an "AS" be added as shown below?

SELECT a, b,
CASE WHEN a=b THEN a
ELSE a || '-' || b
END AS ab
FROM test;

Respectfully,
Jorge Maldonado