Dear Monks,

I hope I am not abusing this forum too much as my problem is not strictly a Perl-problem but I hope on some feedback anyway.

We are currently designing a system where we will persist Moose-based object in an Oracle-database (probably using DBIx::Class), but we do not only want to store the current state of the objects but also keep a history of their previous states.

The question now is how to do this.

One of the approaches to such problems I have seen consists in adding some "version"-column to all the tables holding versionized data that gets incremented with every new version, the current version then being the one with the highest version-value. Current data can then be made available via a view that suppresses all the historic rows.

Is that the way to do it or are there better ways?

Assuming this is the way to go, I can see several options of implementing it, e.g.

- implement it yourself in Perl

- do with triggers in PL/SQL

- use Oracle Workspace Manager

What would be the different pros and cons?

I would like to avoid being locked into Oracle technology, but as I do not realistically expect this application ever to be migrated to something else I could accept a lock-in to proprietary technology if it makes my live easier...

In particular I have never used the Workspace Manager, but it could be exactly what we need - is there anyone that could share his experiences?

Many thanks!

In reply to database historisation by morgon

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