Multiple databases in dbTools++

The project I work on is a distributed application and it uses many databases residing on different machines for storing data. We plan to use dbTools++ to interact with the sybase database. My question is: I may have operations like select to operate on tables which lie across different databases. I found that selector member function is part of RWDBDatabase object. If I open two databases, the selector members are different for each of them. How do I do a join operation on both of these tables which lie across multiple databases using dbTools++? Please mail the replies to me at jijo%istc206a04%st@singtel.com Regards, Joe