From: Michael Fuhr <mike@fuhr.org>
To: German Raul Hoyos Parravicino <rhoyos@gmail.com>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: Fwd: Question
Date: Tue, 7 Mar 2006 16:44:55 -0700
Message-ID: <20060307234455.GA36726@winnie.fuhr.org> (raw)
In-Reply-To: <912a25750603071409p1204d1f6je8dc7fb13f68cca5@mail.gmail.com>
References: <912a25750603071236y6e61aa8ajb314650012d63928@mail.gmail.com>
<912a25750603071409p1204d1f6je8dc7fb13f68cca5@mail.gmail.com>
On Tue, Mar 07, 2006 at 05:09:56PM -0500, German Raul Hoyos Parravicino wrote:
> I have a problem developing a ECPG program. I am making a programa using
> FETCH, when the second row is sent the following message appear:
>
> ==>sqlcode [-213] msg[NULL value without indicator in line 1192.]
[...]
> Is it possible to use something similar to "isnull" in Oracle?
Are you looking for the SQL-standard COALESCE?
test=> SELECT COALESCE('foo', 'bar');
coalesce
----------
foo
(1 row)
test=> SELECT COALESCE(NULL, 'bar');
coalesce
----------
bar
(1 row)
See also the ECPG documentation on using indicators to detect NULL.
--
Michael Fuhr
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To: pgsql-admin@postgresql.org
Cc: mike@fuhr.org, rhoyos@gmail.com
Subject: Re: Fwd: Question
In-Reply-To: <20060307234455.GA36726@winnie.fuhr.org>
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