From: Geoff Tolley <geoff@polimetrix.com>
To: Andrew Sullivan <ajs@crankycanuck.ca>
Cc: pgsql-sql@postgresql.org
Subject: Re: Differentiate Between Zero-Length String and NULLColumn Values
Date: Tue, 30 Jan 2007 10:14:26 -0800
Message-ID: <45BF8B02.1050607@polimetrix.com> (raw)
In-Reply-To: <20070130165503.GC32170@phlogiston.dyndns.org>
References: <20070130131334.GD31676@phlogiston.dyndns.org>
<45BF584F.A3DD.0030.0@indicator.be>
<20070130142332.GA31905@phlogiston.dyndns.org>
<20070130113834.fa8d09e0.darcy@druid.net>
<20070130165503.GC32170@phlogiston.dyndns.org>
Andrew Sullivan wrote:
> AFAIK they don't accept the latter any more than we do. But again,
> I'm an Oracle ignoramous. I _do_ know that people of my acquaintance
> who have historically only developed against Oracle have given me
> queries with things like
>
> value = ''
>
> in it, and been surprised. Or at least, I think it's like that. I
> do recall hearing a lot about how stupid Postgres was because it
> didn't like something that worked "perfectly well" on Oracle, which I
> was assured was the most SQL-compliant system on the planet.
> Happily, I no longer work with any of those people :)
At my last job I used Oracle 8i and 9i (standard editions), and I very
definitely remember the pain of it interpreting the empty string as a
NULL (especially relevant when input needed trimming).
- Geoff
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: geoff@polimetrix.com, ajs@crankycanuck.ca
Subject: Re: Differentiate Between Zero-Length String and NULLColumn Values
In-Reply-To: <45BF8B02.1050607@polimetrix.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox