Geographic Database Schema Handling for Interoperating with Multidimensional Databases

In this paper, we extend the geographic database (GDB) schema with some special "functional attributes" in order to use data cube stored in a Multidimensional Database (MDB). They support links between above mentioned databases through geographic dimensions always implicitly or explicitly present in MDDB. The main goal of this paper is to propose a solution to answer queries involving data stored in both environments in a transparent way to the user. A query langauge to support the common use of multidimensional and geographic operators is proposed. Finally, the main characteristics of the proposed approach are illustrated by a query example.