synchronize DTAP

Hi,

We have an environment that has a central repository for lookups, which is
replicated to several databases, ech for different applications.
This has been arranged in a DTAP manner.

Sometimes it is necessary to synchronize the lookups of one of the DTAP
branches with another. But i can't just overwrite one database with a dump
from another branch, as the consumer databases will not follow.
What i think i need is a way to compute the differences between two
databases that have the same schema, and generate insert/update/delete
statements from that.

Since this seems as a pretty generic problem, i thought that i should ask
around before i start writing my own scripts. Does anyone know of script or
application that does this?

Cheers
--
Willy-Bas Loos