From: | "Campbell, Lance" <lance(at)uiuc(dot)edu> |
---|---|
To: | "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com>, <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: Create on insert a unique random number |
Date: | 2008-03-18 17:03:31 |
Message-ID: | B10E6810AC2A2F4EA7550D072CDE8760CDDC33@SAB-FENWICK.sab.uiuc.edu |
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Thread: | |
Lists: | pgsql-sql |
I created the following table:
create table xyz (
n serial,
abc character varying,
constraint n_pkey primary key (n));
Each time I do an insert:
insert into xyz(abc) values('adf6');
The field n is not random but is sequential. Is there something I
should do to make the serial number random?
Thanks,
Lance Campbell
Project Manager/Software Architect
Web Services at Public Affairs
University of Illinois
217.333.0382
http://webservices.uiuc.edu
-----Original Message-----
From: pgsql-sql-owner(at)postgresql(dot)org
[mailto:pgsql-sql-owner(at)postgresql(dot)org] On Behalf Of A. Kretschmer
Sent: Tuesday, March 18, 2008 11:52 AM
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: [SQL] Create on insert a unique random number
am Tue, dem 18.03.2008, um 9:43:01 -0700 mailte chester c young
folgendes:
>
> > When inserting a record is there a way to have postgres create a
> > random number for a field such that it is unique?
>
>
> you could use oid
No! No oid, it's deprecated. The solution: use serial.
Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
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