XML-based OLAP query processing in 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 federated data warehouses
Booktitle Enterprise Information Systems V
Type in collection
Publisher Kluwer Academic Publishers
Address Dordrecht
ISBN 1-4020-1726-X
Year 2004
Pages 93-100
SCCH ID# 426
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.