My application supports both SQL Server and Oracle databases. I have a customer who is moving from Oracle to SQL Server. Is there an easy(ish) way to do the data migration in LLBLGen? Do I need to load each entity on the Oracle DataAccessAdapter, clone it, and then save it using the SQL Server DataAccessAdapter, or is there a way to cut out the cloning?

There is no out-of-the-box way to do that. You will need to build the data migration procedure your self, pretty much as you have explained it.

Thank you.