2063 search results - page 5 / 413 » Containment of Aggregate Queries |
VLDB
2004
ACM
14 years 24 days ago
2004
ACM
Query containment is the most fundamental relationship between a pair of database queries: a query Q is said to be contained in a query Q if the answer for Q is always a subset of...
EDBT
2004
ACM
14 years 7 months ago
2004
ACM
There is a growing interest in on-line algorithms for analyzing and querying data streams, that examine each stream element only once and have at their disposal, only a limited amo...
CCS
2006
ACM
13 years 11 months ago
2006
ACM
In-network aggregation is an essential primitive for performing queries on sensor network data. However, most aggregation algorithms assume that all intermediate nodes are trusted...
PODS
2000
ACM
13 years 11 months ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
PODS
2003
ACM
14 years 7 months ago
2003
ACM
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...