note: the svn repository is a source code repository. (.java .class and .sql files.)There are arguments both ways, but the current implementation in SQLDeveloper only supports version control on source files. IMO there needs to be a link between the vc repository, the source file you are working on and the object it creates in the database.
there is no DB data there, and no DB schema. (other than in the .sql files)
I'm saying this because I'm not an SQL specialist, (and even then, I'm mainly mysql!) and I seem to get the impression that source control to SQL guys might mean something slightly different. i.e. versioning a DB rather than the source code that creates a DB. If I'm wrong about this, apologies! ;)