Actually, it is quite simple: the application supports SQL Server as well as Oracle, so the customer wants to migrate. Shouldn't be a problem, the application manufacturer is also happy.
But where the traps lurked, what role the collation played and what dead ends we visited, that's what this project report is about. But of course I would also like to share the successful ways, the best approaches from my point of view and the most important findings in this presentation.