951 search results - page 5 / 191 » Groupwise Processing of Relational Queries |
SIGMOD
2005
ACM
14 years 3 months ago
2005
ACM
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
CLOUD
2010
ACM
14 years 2 months ago
2010
ACM
This work addresses the need for stateful dataflow programs that can rapidly sift through huge, evolving data sets. These data-intensive applications perform complex multi-step c...
EDBT
2009
ACM
13 years 7 months ago
2009
ACM
Stream applications gained significant popularity over the last years that lead to the development of specialized stream engines. These systems are designed from scratch with a di...
SIGMOD
2010
ACM
14 years 2 months ago
2010
ACM
Applications ranging from location-based services to multi-player online gaming require continuous query support to monitor, track, and detect events of interest among sets of mov...
ER
2007
Springer
14 years 1 months ago
2007
Springer
The paper presents an unified Description Logic (DL) model for databases. Describing database models using DLs is a fundamental problem in many areas because it turns databases to...