Re: Random()

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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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
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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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