Constraint-based Query Distribution Framework for an Integrated Global Schema
Abstract
Distributed heterogeneous data sources need to be queried uniformly using global schema. Query on global schema is reformulated so that it can be executed on local data sources. Constraints in global schema and mappings are used for source selection, query optimization,and querying partitioned and replicated data sources. The provided system is all XML-based which poses query in XML form, transforms, and integrates local results in an XML document. Contributions include the use of constraints in our existing global schema which help in source selection and query optimization, and a global query distribution framework for querying distributed heterogeneous data sources.
Cite
@article{arxiv.1004.2155,
title = {Constraint-based Query Distribution Framework for an Integrated Global Schema},
author = {Ahmad Kamran Malik and Muhammad Abdul Qadir and Nadeem Iftikhar and Muhammad Usman},
journal= {arXiv preprint arXiv:1004.2155},
year = {2010}
}
Comments
The Proceedings of the 13th INMIC 2009), Dec. 14-15, 2009, Islamabad, Pakistan. Pages 1 - 6 Print ISBN: 978-1-4244-4872-2 INSPEC Accession Number: 11072575 Date of Current Version : 15 January 2010