Efficient evaluation of XML middle-ware queries Mary F. Fernandez, Atsuyuki Morishima, and Dan Suciu   View Paper (PDF)   Return to Distributed and Heterogeneous Databases Abstract We address the problem of efficiently constructing materialized XML views of relational databases. In our setting, the XML view is specified by a query in the declarative query language of a middle-ware system, called SilkRoute. The middle-ware system evaluates a query by sending one or more SQL queries to the target relational database, integrating the resulting tuple streams, and adding the XML tags. We focus on how to best choose the SQL queries, without having control over the target RDBMS. DiSC'02 © 2003 Association for Computing Machinery