404 search results - page 41 / 81 » SQL and Management of External Data |
105
Voted
EDBT
2009
ACM
15 years 6 months ago
2009
ACM
We investigate the problem of refining SQL queries to satisfy cardinality constraints on the query result. This has applications to the many/few answers problems often faced by da...
102
click to vote
COMAD
2008
15 years 4 months ago
2008
Role-based access control (RBAC) has attracted considerable research interest. However, the computational issues of RBAC models are yet to be thoroughly studied. In this paper, we...
112
click to vote
SIGMOD
2010
ACM
15 years 7 months ago
2010
ACM
The probabilistic threshold query (PTQ) is one of the most common queries in uncertain databases, where all results satisfying the query with probabilities that meet the threshold...
120
click to vote
CAISE
1999
Springer
15 years 6 months ago
1999
Springer
A common problem within most large corporations nowadays is the diversity of database systems that are employed by their many departments in the development of a product. Usually, ...
135
Voted
ESCIENCE
2007
IEEE
15 years 6 months ago
2007
IEEE
Provenance management has become increasingly important to support scientific discovery reproducibility, result interpretation, and problem diagnosis in scientific workflow enviro...