Re: Random()

On 11/17/06, A. Kretschmer <andreas.kretschmer@schollglas.com> wrote:
> am  Thu, dem 16.11.2006, um 16:31:14 -0200 mailte Ezequias Rodrigues da
> Rocha folgendes:
> > Hi list,
> >
> > I have a bigint collumn and I would like to generate a random number
> within the
> > numbers of my column.
>

> select <bigint_column> from <your_table> order by random() limit 1;

This query will tend to get slower as the table grows because of the sorting.

it possible to get a row from a random offset
how about

select <bigint_column> from <your_table>  limit 1 offset  20000*random() ;

?

regds
mallah.




>
>
> Andreas
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> Andreas Kretschmer
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