I don't know whether i'm posting this thread in the right forum category or not... But, would you guys give me an info on how we could estimate the cost or budget required to migrate all the data from DB ABC to DB XYZ?
I don't think size of database is a big factor. What matters most is how complicated the design is and how easily the existing features can be implemented / migrated in the new version/database. You need to remember all the db software allows to implement all the possible architecture but the way that is implemented is different. And this is the most difficult part. Migrating the data in tables is probably the easiest part. The toughest part is the implementation of business logic.