From: | tony <tony(at)animaproductions(dot)com> |
---|---|
To: | "Nigel J(dot) Andrews" <nandrews(at)investsystems(dot)co(dot)uk> |
Cc: | postgres list <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: how does NOT work? |
Date: | 2002-04-24 15:30:38 |
Message-ID: | 1019662239.22848.39.camel@vaio |
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Lists: | pgsql-general |
On Wed, 2002-04-24 at 17:22, Nigel J. Andrews wrote:
> > select count(*) from individu
> >
> > count
> > 18417
> >
> > select count(*) from individu where type2 like 'a%'
> >
> > count
> > 12619
> >
> > select count(*) from individu where type2 not like 'a%'
> >
> > count
> > 81
> >
> > Clues?
>
> NULLs?
the cells are either empty or contain a word that doesn't start with "a"
or a -
If I do it with two letters it works just fine so I guess I'll just put
another "a" in front
Cheers
Tony Grant
--
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