58 search results - page 5 / 12 » Rewriting Queries Using Views with Access Patterns Under Int... |
PVLDB
2010
13 years 8 months ago
2010
Supporting legacy applications when the database schema evolves represents a long-standing challenge of practical and theoretical importance. Recent work has produced algorithms a...
CIKM
2004
Springer
14 years 3 months ago
2004
Springer
At present, most of the state-of-the-art solutions for XML access controls are either (1) document-level access control techniques that are too limited to support fine-grained sec...
ADC
2008
Springer
13 years 11 months ago
2008
Springer
Many existing access controls use node filtering or querying rewriting techniques. These techniques require rather time-consuming processes such as parsing, labeling, pruning and/...
VLDB
2001
ACM
14 years 10 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...
SIGMOD
2011
ACM
13 years 18 days ago
2011
ACM
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...