Title :
The IRO-DB approach: processing queries in federated database systems
Author :
Kapsammer, E. ; Wagner, R.R.
Author_Institution :
FAW Res. Inst. for Appl. Knowledge Process., Linz Univ., Austria
Abstract :
As information may be spread over several distributed and heterogeneous databases (DBs) the expectation for integrated access to them in a comfortable way arises. IRO-DB (Interoperable Relational and Object-Oriented DBs) is a federated database system (DBS) that provides interoperability among multiple heterogeneous autonomous DBs. Despite participating in the federation, the different DBs may keep their autonomy: on the one hand to be able to run existing applications without changing them, and on the other hand because severe reasons may support the decision for distributed DBs. An overview of IRO-DB is given. The architecture and the schemata available in IRO-DB are described and a focus on the treatment of queries in IRO-DB is given. IRO-DB is supported partly by the European ESPRIT III program under project number 8629
Keywords :
distributed databases; object-oriented databases; open systems; query processing; relational databases; European ESPRIT III program; IRO-DB approach; Interoperable Relational and Object-Oriented DBs; distributed DBs; federated database systems; heterogeneous databases; integrated access; multiple heterogeneous autonomous DBs; project number 8629; query processing; query treatment; Data models; Data security; Database systems; Distributed databases; Object oriented databases; Object oriented modeling; Prototypes; Relational databases; Satellite broadcasting; Transaction databases;
Conference_Titel :
Database and Expert Systems Applications, 1997. Proceedings., Eighth International Workshop on
Conference_Location :
Toulouse
Print_ISBN :
0-8186-8147-0
DOI :
10.1109/DEXA.1997.617415
