XML-based OLAP query processing in a federated data warehouses

Authors Oscar Mangisengi
Wolfgang Essmayr
Johannes Huber
Edgar Weippl
Editors O. Camp
J. Filipe
S. Hammoudi
M. Piattini
Title XML-based OLAP query processing in a federated data warehouses
Booktitle Proc. 5th Int. Conf. on Enterprise Information Systems (ICEIS'03)
Type in proceedings
Volume I
Address Angers, France
Department IDW
ISBN 972-98816-1a-8
Month April
Year 2003
Pages 71-78
SCCH ID# 268
Abstract

Today, XML is the format of choice to implement interoperability between systems. This paper addresses the XML-based query processing for heterogeneous OLAP data warehouses in a federated architecture. In our approach, XML, as an intermediary representation, can be used as a basis for federated queries and queries for local OLAP data warehouses, whereas XML DTD can be used for query language definition and validation of a XML federated query.