Ron, are you using the SQL toolkit? If so, you can wire the connection refnum to the 'Get Table Information' VI. This returns, for me at least, the fully-specified path(s) to the database file(s) containing the tables (in the zeroeth column of a 2D array of strings). If you're *not* using the toolkit, I'm not sure how to answer this - how are you using ODBC data sources...?
David Boyd
Sr. Test Engineer
Abbott Labs
(lapsed) Certified LabVIEW Developer