52 search results - page 1 / 11 » On the Decidability of Query Containment under Constraints |
LPAR
2000
Springer
13 years 8 months ago
2000
Springer
PODS
1998
ACM
13 years 9 months ago
1998
ACM
PODS
2003
ACM
14 years 5 months ago
2003
ACM
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...
ICDT
2005
ACM
13 years 10 months ago
2005
ACM
We study the problem of rewriting queries using views in the presence of access patterns, integrity constraints, disjunction, and negation. We provide asymptotically optimal algori...
TOCL
2008
13 years 4 months ago
2008