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Re: Monitoring database for changes - backup purposes

From: sualeh(dot)fatehi(at)gmail(dot)com
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: Monitoring database for changes - backup purposes
Date: 2005-10-23 16:06:23
Message-ID: 1130083583.468325.172110@g44g2000cwa.googlegroups.com (view raw or flat)
Thread:
Lists: pgsql-admin
Chris,

If you have a JDBC driver for pgsql, you can use SchemaCrawler.
https://sourceforge.net/project/showfiles.php?group_id=148383

SchemaCrawler is a free, open source tool that can produce database
schema metadata and/ or data output in a diff-able format.

Sualeh.


Chris Jewell wrote:
> Hi,
>
> Yes, diff would work and is my current plan, but it requires me to
> perform the backup first.  What I needed really was a system by which a
> backup would only be run if there was something that needed backing up.
>
> Thanks anyway,
>
> Chris
>
> --
> Chris Jewell, BSc(Hons), BVSc, MRCVS
> Dept of Maths and Statistics
> Fylde College
> Lancaster University
> Lancaster
> Lancs
> LA1 4YF
>
>
>
> Darcy Buskermolen wrote:
>
> >On Friday 14 October 2005 06:19, Chris Jewell wrote:
> >
> >
> >>Hi,
> >>
> >>I have a query about a backup policy that I wish to implement.
> >>Currently, we are running a PostgreSQL server with a very large database
> >>on it.  The database consists of a core of read-only tables, with tables
> >>created by the users going by default into the user's own schemas.  For
> >>backup purposes, I have a script that uses pg_dump to create dumps of
> >>the individual user schemas.  However, this is mainly a read-only
> >>database and information is added or updated only rarely.  What I really
> >>need is a method of monitoring the database, such that my backup script
> >>will only back any one schema up if it has changed since it was last
> >>backed up.  Is there any way to do this?  Is there a checksum function
> >>or something that I could use?
> >>
> >>
> >
> >No there is not, but would a diff -q be sufficient for your needs ?
> >
> >
> >
> >
> >>Thanks,
> >>
> >>Chris
> >>
> >>
> >
> >
> >
>
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