I've got a DataSet consistint of the large quantity of tables of knowledge. Is it feasible automaticly create SQL Server DataBase (mdf-file) from description of my DataSet? Obviously, I'm able to get it done by hand, but might be there's an easy method?

I've got a XSLT script and build DDL claims from the DataSet xsd. It's here. The database itself would need to be produced, and you'd need to by hand execute the SQL script the XSLT script produced. But when you've got a complex enough DataSet with sufficient tables, it may be more suitable to doing the work all manually.