From: Richard Broersma Jr <rabroersma@yahoo.com>
To: George Handin <postgresql@dafunks.com>
To: pgsql-sql@postgresql.org
Subject: Re: Query to return modified results at runtime?
Date: Wed, 7 Jun 2006 21:32:36 -0700 (PDT)
Message-ID: <20060608043236.96435.qmail@web31810.mail.mud.yahoo.com> (raw)
In-Reply-To: <44876F63.9030302@dafunks.com>
> ID Color
> --- -------
> 1 Blue
> 2 Red
> 3 Green
> 4 Orange
>
> How would I rewrite the query to return results where the colors are
> replaced by letters to give the following results?
>
> ID Color
> --- -------
> 1 A
> 2 D
> 3 B
> 4 C
http://www.postgresql.org/docs/8.1/interactive/functions-conditional.html
this is probably the easiest to implement but hard to mangage over time. Another solution would
be to create color_code table that is referenced by your test table. Then when you can create a
query as: select a.ID, b.code from test as a join color_code as b on a.color = b.color;
There are additional solutions to this also. But these two are probably the easiest.
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To: pgsql-sql@postgresql.org
Cc: rabroersma@yahoo.com, postgresql@dafunks.com
Subject: Re: Query to return modified results at runtime?
In-Reply-To: <20060608043236.96435.qmail@web31810.mail.mud.yahoo.com>
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