Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Agora: Living with XML and Relational
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Visual Web Information Extraction with Lixto
Proceedings of the 27th International Conference on Very Large Data Bases
Answering XML Queries on Heterogeneous Data Sources
Proceedings of the 27th International Conference on Very Large Data Bases
Quilt: An XML Query Language for Heterogeneous Data Sources
Selected papers from the Third International Workshop WebDB 2000 on The World Wide Web and Databases
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This paper describes the design of a system that facilitates Extracting, Interconnecting and Accessing Heterogeneous Data Sources. Data sources can be static or active: static data sources include structured or semistructured data like databases, XML and HTML documents; active data sources include services which can be any executable programs such as C, C++ programs or Java classes. Users interact with the system using XQuery language. We have extended the XQuery language in order to call services. In this paper services resolve conflicts between static data sources (naming conflicts, data representation conflicts, data scaling conflicts...) in order to obtain an integrated view of data.