708 search results - page 52 / 142 » Optimizing SQL Queries over Text Databases |
WMCSA
2002
IEEE
14 years 1 months ago
2002
IEEE
We show how the database community’s notion of a generic query interface for data aggregation can be applied to ad-hoc networks of sensor devices. As has been noted in the senso...
SIGMOD
2006
ACM
14 years 9 months ago
2006
ACM
The current SQL standard for access control is coarse grained, in that it grants access to all rows of a table or none. Fine-grained access control, which allows control of access...
APPT
2003
Springer
14 years 2 months ago
2003
Springer
The increase number of mobile users in wireless environment affects query access time substantially. To minimise the query access time, one possible way is to employ data broadcast...
SIGMOD
2010
ACM
14 years 1 months ago
2010
ACM
Discrimination discovery in databases consists in finding unfair practices against minorities which are hidden in a dataset of historical decisions. The DCUBE system implements t...
SIGMOD
1993
ACM
14 years 27 days 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 ...