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Using XQuery to describe mappings from global schemas to local data sources

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3 Author(s)
Xiaobo Peng ; Dept. of Comput. Sci. & Eng., North Texas Univ., Denton, TX, USA ; Brazile, R. ; Swigger, K.M.

This paper describes a database mediation system based on XML related technologies. Descriptions of its architecture, its key metadata and the processes that are used to answer user queries are included. The system uses XQuery to represent the mappings between the global schema and local schemas. XQuery is used to translate user queries on the global virtual database to queries on local data sources. The advantage of using XQuery over specialized logic or programming languages is improved standardization and a powerful descriptive capability for the data.

Published in:

Information Reuse and Integration, 2004. IRI 2004. Proceedings of the 2004 IEEE International Conference on

Date of Conference:

8-10 Nov. 2004

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