How to keep historic details of modification in a database (Audit trail)?

Posted by mada on Stack Overflow See other posts from Stack Overflow or by mada
Published on 2010-03-27T19:54:31Z Indexed on 2010/03/27 20:23 UTC
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postgresql

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database

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database-design

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audit

I'm a J2EE developer & we are using hibernate mapping with a PostgreSQL database.

We have to keep track of any changes occurs in the database, in others words all previous & current values of any field should be saved. Each field can be any type (bytea, int, char...)

With a simple table it is easy but we a graph of objects things are more difficult.

So we have, speaking in a UML point of view, a graph of objects to store in the database with every changes & the user.

Any idea or pattern how to do that?

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