147 search results - page 29 / 30 » Size Bounds and Query Plans for Relational Joins |
SIGMOD
1996
ACM
13 years 10 months ago
1996
ACM
Many commercial database systems maintain histograms to summarize the contents of relations and permit efficient estimation of query result sizes and access plan costs. Although s...
PODS
2003
ACM
14 years 5 months ago
2003
ACM
We consider the view selection problem for XML content based routing: given a network, in which a stream of XML documents is routed and the routing decisions are taken based on re...
MDM
2007
Springer
13 years 12 months ago
2007
Springer
FriendFinder as a location-based service collects location data from mobile users and distributes a particular user’s location upon request. Privacy of users data especially loc...
VLDB
2006
ACM
14 years 6 months ago
2006
ACM
Managing large-scale time series databases has attracted significant attention in the database community recently. Related fundamental problems such as dimensionality reduction, tr...
ICDT
2012
ACM
11 years 8 months ago
2012
ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...