287 search results - page 1 / 58 » Optimization Techniques for Queries with Expensive Methods |
TODS
1998
13 years 5 months ago
1998
SIGMOD
1996
ACM
13 years 9 months ago
1996
ACM
Object-Relational and Object-Oriented DBMSs allow users to invoke time-consuming ("expensive") methods in their queries. When queries containing these expensive methods a...
PODS
2007
ACM
14 years 5 months ago
2007
ACM
We consider the problem of optimizing and executing multiple continuous queries, where each query is a conjunction of filters and each filter may occur in multiple queries. When f...
SIGMOD
1993
ACM
13 years 9 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...
ICDE
2001
IEEE
14 years 6 months ago
2001
IEEE
LeSelect is a mediator system which allows scientists to publish their resources (data and programs) so they can be transparently accessed. The scientists can typically issue quer...