From: | Gergely Czuczy <phoemix(at)harmless(dot)hu> |
---|---|
To: | Kenneth Suralta <ksuralta(at)ntsp(dot)nec(dot)co(dot)jp> |
Cc: | pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: help on SQL |
Date: | 2004-04-21 07:09:26 |
Message-ID: | Pine.LNX.4.44.0404210907250.28604-100000@localhost |
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Lists: | pgsql-interfaces |
On Wed, 21 Apr 2004, Kenneth Suralta wrote:
>
> hello everyone,
>
> is it possible to get every other row in the table?
> like for example:
> data
> -----
> 1
> 2
> 3
> 4
> 5
> 6
> 7
SELECT t.fields FROM table t WHERE data NOT IN (SELECT t2.data FROM table
t2 WHERE some_whereclause);
it will select these rows which ones are not in the subquery. but you can
do it simply by getting the negate of the whereclause...
>
> Is it possible to have this result (interval of 3)?
>
> result
> ------
> 1
> 4
> 7
i don't see what you mean. please describe it.
>
> thanks,
> kenneth
>
> --
>
>
>
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>
Bye,
Gergely Czuczy
mailto: phoemix(at)harmless(dot)hu
PGP: http://phoemix.harmless.hu/phoemix.pgp
"Wish a god, a star, to believe in,
With the realm of king of fantasy..."
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