Re: why unsigned numbers don't exist ?

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От jdassen@cistron.nl (J.H.M. Dassen (Ray))
Тема Re: why unsigned numbers don't exist ?
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Msg-id slrn9i1gs4.jks.jdassen@odin.cistron-office.nl
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Ответ на why unsigned numbers don't exist ?  (Julien Jehannet <Julien.Jehannet@SecurityKeepers.com>)
Ответы Re: Re: why unsigned numbers don't exist ?
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Julien Jehannet <Julien.Jehannet@SecurityKeepers.com> wrote:
> I am newbie with PostgreSQL and I ask myself if it's possible to have
> unsigned numbers.

As far as I know, there is no separate data type for unsigned numbers, but
you can of course use CHECK constraints like

            age       INTEGER      CHECK (age >= 0),

(see http://www.ca.postgresql.org/docs/aw_pgsql_book/node132.html).

HTH,
Ray
--
Those who are willing to trade their liberty for security deserve neither.
    Benjamin Franklin

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