From: Stephan Szabo <sszabo@megazone.bigpanda.com>
To: Josh Berkus <josh@agliodbs.com>
Cc: Wilhelm Graiss <Wilhelm.Graiss@bal.bmlfuw.gv.at>
Cc: 'pgsql-sql@postgresql.org' <pgsql-sql@postgresql.org>
Subject: Re: plpgsql related question: intervals and variables
Date: Tue, 21 Oct 2003 14:39:26 -0700 (PDT)
Message-ID: <20031021143506.M52534@megazone.bigpanda.com> (raw)
In-Reply-To: <200310211143.02533.josh@agliodbs.com>
References: <40925A3BA1EBD711A35C000102B6E57D06C9A7@BAL_PROXY00>
<200310211143.02533.josh@agliodbs.com>
On Tue, 21 Oct 2003, Josh Berkus wrote:
> > heute := ''today'';
> > Select Into vk ourcolumn From table where other = foo;
> > If vk > 0 Then
> > vk_txt := ''Vorkuehlung notwendig'';
> > ez := heute + interval ''vk days'';
>
> PL/pgSQL handles variable like SQL, not like PHP or Perl. You can't do a
> variable substitution inside quotes, and you need to cast:
>
> ez := heute + interval (cast(vk as text) || '' days'');
I think that something like
ez := heute + vk * interval '1 day';
might be better in general.
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To: pgsql-sql@postgresql.org
Cc: sszabo@megazone.bigpanda.com, josh@agliodbs.com, Wilhelm.Graiss@bal.bmlfuw.gv.at
Subject: Re: plpgsql related question: intervals and variables
In-Reply-To: <20031021143506.M52534@megazone.bigpanda.com>
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