A data integration system and method using XQuery for defining the integrated schema

摘要

The present invention relates to a system and method for generating an integrated management scheme to incorporate a heterogeneous distributed data sources in a XML-based data integration system.; Data to which the present invention is applied to the aggregation system integrated query processor to process a user's query integration; The wrapper that provides local schema information; Including the integration schema processor to handle the integration schema definition language.; The invention is integrating the schema definition of a variety of forms, utilize a variety of syntax for easily, and XQuery integration schema created by describing the integration schema definition and the mapping information to extend the XQuery used in integrated query in XML-based data integration system possible, and it can express the mapping information at the same time as the integrated schema definitions do not need a method for expressing a separate mapping information definitions.