Hello Christoph,

> Hi, is there something like vectors available that indicate which
> values of columns where changed by an update?

No.

> Otherwise I have to compare all of the old/new values of the whole
> table to log the changes.

Ever thought of saving yourself the trouble of creating these triggers
and taking a look at IB LogManager? ( www.upscene.com )

Martijn Tonies
Database Workbench - tool for InterBase, Firebird, MySQL, NexusDB, Oracle &
MS SQL Server
Upscene Productions
http://www.upscene.com
My thoughts:
http://blog.upscene.com/martijn/
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