MUST allows you to upsize against an existing SQL Server database which could contain tables and other objects.

The tool will analyse the existing SQL Server database and build a data dictionary of Schemas, Tables and Fields, against which it can check that new work will not be in conflict with existing objects. This also means that if you have already upsized your databases, and want to convert queries to SQL Server Views and Stored Procedures, the SQL can be validated against the target server.