Re: help on SQL - Mailing list pgsql-interfaces

From Gergely Czuczy
Subject Re: help on SQL
Date
Msg-id Pine.LNX.4.44.0404210907250.28604-100000@localhost
Whole thread Raw
In response to help on SQL  (Kenneth Suralta <ksuralta@ntsp.nec.co.jp>)
Responses Re: help on SQL
List 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 tablet2 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
>
> --
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>


Bye,

Gergely Czuczy
mailto: phoemix@harmless.hu
PGP: http://phoemix.harmless.hu/phoemix.pgp

"Wish a god, a star, to believe in,
With the realm of king of fantasy..."



pgsql-interfaces by date:

Previous
From: Kenneth Suralta
Date:
Subject: help on SQL
Next
From: Kenneth Suralta
Date:
Subject: Re: help on SQL