From: | "Ezequias Rodrigues da Rocha" <ezequias(dot)rocha(at)gmail(dot)com> |
---|---|
To: | "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com> |
Cc: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Random() |
Date: | 2006-11-16 20:54:42 |
Message-ID: | 55c095e90611161254w271e6781h6ee0d09a5be60db1@mail.gmail.com |
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Thread: | |
Lists: | pgsql-sql |
Just another question. I can trust on this random number ? The rule to it is
quite tested ?
I am thinking in implementing a function that return allways a random
number. What do you think of the trust of this function (random()) ?
My bigint field has 20,000 numbers and I'd like to make real random (used
like lottery).
Regards
Ezequias
2006/11/16, A. Kretschmer <andreas(dot)kretschmer(at)schollglas(dot)com>:
>
> 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;
>
>
> Andreas
> --
> Andreas Kretschmer
> Kontakt: Heynitz: 035242/47215, D1: 0160/7141639 (mehr: -> Header)
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--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Atenciosamente (Sincerely)
Ezequias Rodrigues da Rocha
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
A pior das democracias ainda é melhor do que a melhor das ditaduras
The worst of democracies is still better than the better of dictatorships
http://ezequiasrocha.blogspot.com/
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