Re: Modelling Oracle Sequences

From: Pavel Stehule <stehule(at)kix(dot)fsv(dot)cvut(dot)cz>
To: Julian North <jnorth(at)lastminute(dot)com>
Cc: "'pgsql-general(at)postgresql(dot)org'" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Modelling Oracle Sequences
Date: 2003-11-21 09:42:15
Message-ID: Pine.LNX.4.44.0311211039560.28005-100000@kix.fsv.cvut.cz
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Hello

why can't use normal sequence? There isn't difference betwen Oracle and
PostgreSQL?

http://www.postgresql.org/docs/7.3/static/sql-createsequence.html

regards
Pavel

On Fri, 21 Nov 2003, Julian North wrote:

> Hi,
>
> I am in the process of porting a number of large MSSQL databases to
> Postgres.
>
> The current id generation model in SQL server is an oracle style sequence
> generator i wrote using a pretty simple stored proc and table structure.
>
> I now need to do the same thnig in postgres.
>
> In MSSQL I was able to open an UPDATE cursor, which places a lock on the row
> in the sequence table. I then update, release and return.
>
> Has anyone done something similar or have any pointers on how to do this
> safely, securely without an update cursor?
>
> Any infor appreciated.
>
> Cheers,
>
>
>
> Julian.
>
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