University of Pennsylvania ScholarlyCommons Departmental Papers (CIS) Department of Computer & Information Science December 2002 An XML Query Engine for Network-Bound Data Zachary G. Ives University of Pennsylvania,
[email protected] Alon Y. Halevy University of Washington Daniel S. Weld University of Washington Follow this and additional works at: https://repository.upenn.edu/cis_papers Recommended Citation Zachary G. Ives, Alon Y. Halevy, and Daniel S. Weld, "An XML Query Engine for Network-Bound Data", . December 2002. Postprint version. Published in VLDB Journal : The International Journal on Very Large Data Bases, Volume 11, Number 4, December 2002, pages 380-402. The original publication is available at www.springerlink.com. Publisher URL: http://dx.doi.org/10.1007/s00778-002-0078-5 This paper is posted at ScholarlyCommons. https://repository.upenn.edu/cis_papers/121 For more information, please contact
[email protected]. An XML Query Engine for Network-Bound Data Abstract XML has become the lingua franca for data exchange and integration across administrative and enterprise boundaries. Nearly all data providers are adding XML import or export capabilities, and standard XML Schemas and DTDs are being promoted for all types of data sharing. The ubiquity of XML has removed one of the major obstacles to integrating data from widely disparate sources –- namely, the heterogeneity of data formats. However, general-purpose integration of data across the wide area also requires a query processor that can query data sources on demand, receive streamed XML data from them, and combine and restructure the data into new XML output -- while providing good performance for both batch-oriented and ad-hoc, interactive queries.