Re: Modelling Oracle Sequences

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От Pavel Stehule
Тема Re: Modelling Oracle Sequences
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Msg-id Pine.LNX.4.44.0311211039560.28005-100000@kix.fsv.cvut.cz
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Ответ на Modelling Oracle Sequences  (Julian North <jnorth@lastminute.com>)
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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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