When I try to create a Source Module in a Warehouse Builder project and the source is a Microsoft Access database, even if the database link is created correctly (from outside WB: I create a DB link to use it for heterogeneous services and it works if I make a select from SQL Plus like "select * from tablename@dblinkname"), Warehouse Builder can't find any schema related with this DB Link, so I can't create the Source Module?
Any suggestions?