Re: Migration Oracle multitenant database to PostgreSQL ?

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Thomas Kellerer <shammat(at)gmx(dot)net>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Migration Oracle multitenant database to PostgreSQL ?
Date: 2020-11-24 14:09:06
Message-ID: 20201124140906.GB29448@momjian.us
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On Tue, Nov 24, 2020 at 09:22:26AM +0100, Thomas Kellerer wrote:
>
> ROS Didier schrieb am 24.11.2020 um 09:09:
> > I would like to know if it is possible to migrate Oracle multitenant
> > database (with multiple PDB) to PostgreSQL ?
> Postgres' databases are very similar to Oracle's PDBs.
>
> Probably the biggest difference is, that you can't shutdown
> a single database as you can do with a PDB.

I guess you could lock users out of a single database by changing
pg_hba.conf and doing reload.

> Database users in Postgres are like Oracle's "common users", they are
> global for the whole instance (aka "cluster" in Postgres' terms). There
> are no database specific users.

Good to know.

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EnterpriseDB https://enterprisedb.com

The usefulness of a cup is in its emptiness, Bruce Lee

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