30 search results - page 2 / 6 » Query Rewrites with Views for XML in DB2 |
XSYM
2009
Springer
13 years 11 months ago
2009
Springer
Physical structures, for example indexes and materialized views, can improve query execution performance by orders of magnitude. Hence, it is important to choose the right configu...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
We study the problem of answering queries posed on virtual views of XML documents, a problem commonly encountered when enforcing XML access control and integrating data. We approa...
VLDB
2007
ACM
14 years 4 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
SIGMOD
2006
ACM
14 years 4 months ago
2006
ACM
We present and analyze an algorithm for equivalent rewriting of XQuery queries using XQuery views, which is complete for a large class of XQueries featuring nested FLWR blocks, XM...
SIS
2007
13 years 6 months ago
2007
Access control models for XML data can be classified in two major categories: node filtering and query rewriting systems. The first category includes approaches that use access ...