Re: random rows

thanks.

Jie LIANG

St. Bernard Software

10350 Science Center Drive
Suite 100, San Diego, CA 92121
Office:(858)320-4873

jliang@ipinc.com
www.stbernard.com
www.ipinc.com

On Thu, 26 Apr 2001, Ing. Roberto Andrade Fonseca wrote:

> On Thu, 26 Apr 2001, Jie Liang wrote:
>
> >
> > How I can return random N rows from my select stmt?
> > like:
> > e.g. what my selectee is a set of 1000 rows, I want randomly
> > pickup 100 of 1000.
>
>
> I've donne something like:
>
> prereg_iw=# select random(), nombre from asistente order by 1 limit 10;
>         random        |    nombre
> ----------------------+---------------
>  0.000214523170243261 | ALFONSO
>  0.000478655100091666 | OSCAR
>  0.000892118085591177 | JOSE LUIS
>  0.000972398091560415 | IGNACIO
>   0.00109919300354048 | NORBERTO
>   0.00180558208460248 | SALVADOR
>   0.00196880800741204 | ANDRES NOE
>   0.00197171233686233 | SARA MICHELLE
>   0.00226354412839913 | DAVID
>   0.00233715307076329 | RODOLFO
> (10 rows)
>
> and it works!
>
> Saludos,
>
> Roberto Andrade Fonseca
> randrade@abl.com.mx
>