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Extending geographic databases for a query language to support queries involving statistical data

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4 Author(s)
Ferri, F. ; Ist. per lo Studio e la Ricerca sulla, CNR, Rome, Italy ; Pourabbas, E. ; Rafanelli, M. ; Ricci, F.L.

The concepts abstracted from reality and represented through the dimensions in a Statistical Database (SDB) support the user to use them in query formulation and processing. Instead, all those useful properties involved in a query that cannot be obtained through dimension/s in aN SDB (for example, the concept of adjacency) can be presented in a Geographical Database (GDB). This paper presents a conceptual approach to allow the end user, working in a Geographic Database (GDB) environment to use data cube stored in a Statistical Database (SDB). In this context we need to extend the geographic data structure with some special “functional attributes”: They support links between environments mentioned above through geographic dimensions always implicitly or explicitly present in SDB. Therefore, the main objective of this paper is to propose a solution to answer queries involving data stored in both environments in a transparent way to the user. Then, a query language to support the integration of multidimensional operators with geographic operators is proposed. Finally, the main characteristics of the proposed approach are illustrated through some examples

Published in:

Scientific and Statistical Database Management, 2000. Proceedings. 12th International Conference on

Date of Conference:

2000