gvSIG-Desktop 1.12. Manual de usuario
The driver only lists tables which have their geographic metadata in the USER_SDO_GEOM_METADATA view.
Given that each table’s metadata is available, the interface makes use of that data and automatically presents the column (or columns) of geometries. Likewise, ROWID, which is a unique descriptor for each row used internally by Oracle, is used and this ensures that identification is correct.