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Re: NULL und nichts

Subject: Re: NULL und nichts
From: Martin Ramsch <m.ramsch_(at)_computer.org>
Date: Thu, 18 Mar 1999 15:40:56 +0100
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In-Reply-To: <19990318103345Z30729-16716+12_(at)_force.4t2.com>; from Oliver Antosch on Thu, Mar 18, 1999 at 11:26:42AM +0100
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Organisation: University of Passau, Germany
References: <19990318103345Z30729-16716+12_(at)_force.4t2.com>
Reply-To: mysql-de_(at)_lists.4t2.com

Oliver Antosch schrieb am Do, 1999-03-18 11:26:42 +0100:
> SELECT * FROM User WHERE (Hobbys='')
> 
> ab. Aber wie frage ich das "noch gar nix beschrieben ab"?

  SELECT * FROM User WHERE Hobbys IS NULL;

(Keine Klammern nötig, der End-Strichpunkt normalerweise aber schon.)

Ciao,
  Martin
-- 
Martin Ramsch <m.ramsch_(at)_computer.org> <URL: http://home.pages.de/~ramsch/ >
PGP KeyID=0xE8EF4F75 FiPr=52 44 5E F3 B0 B1 38 26  E4 EC 80 58 7B 31 3A D7

References:
- NULL und nichts
  - From: Oliver Antosch <antosch_(at)_gmx.de>

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