1268 search results - page 41 / 254 » On database query languages for K-relations |
ICDT
2009
ACM
14 years 8 months ago
2009
ACM
This article deals with consistent query answering to conjunctive queries under primary key constraints. The repairs of an inconsistent database db are obtained by selecting a max...
DEXA
2011
Springer
12 years 7 months ago
2011
Springer
In this article we present RoSeS (Really Open Simple and Efficient Syndication), a generic framework for content-based RSS feed querying and aggregation. RoSeS is based on a data-...
DEXAW
1999
IEEE
14 years 14 hour ago
1999
IEEE
ing spatio-temporal data as abstract data types into already existing data models is a promising approach to creating spatio-temporal query languages. In this context, an importan...
DASFAA
2005
IEEE
14 years 1 months ago
2005
IEEE
In the past decade, researchers have combined deductive and object-oriented features to produce systems that are powerful and have excellent modeling capabilities. More recently, a...
LCC
1994
13 years 11 months ago
1994
We give an AC0 upper bound on the complexity of rst-oder queries over (in nite) databases de ned by restricted linear constraints. This result enables us to deduce the non-expressi...