generating a data diff between two databases

[Daniel Netz]

hi,

I'm developing a small application relying on a mysql database. When I release new versions I want the users to be able to upgrade their database to suit the new version, this includes both structure and data differences. There are several tools for generating structural differences between two databases but only one (http://www.mrjoy.com/datadiff/) that generates a data diff, "datadiff" doesn't generate SQL queries but rather just a list of differences.

So is there a tool that compares two structurally identical databases for differences in data and generates SQL queries from the result?

thanks in advance,
Daniel Netz