259 search results - page 36 / 52 » Using Relational Database Constraints to Design Materialized... |
PODS
1999
ACM
13 years 11 months ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
VLDB
1999
ACM
13 years 11 months ago
1999
ACM
On-Line Analytical Processing (OLAP) based on a dimensional view of data is being used increasingly for the purpose of analyzing very large amounts of data. To improve query perfo...
KDD
2007
ACM
14 years 8 months ago
2007
ACM
The importance of dominance and skyline analysis has been well recognized in multi-criteria decision making applications. Most previous studies assume a fixed order on the attribu...
ER
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. The notion of user preference in database modeling has recently received much attention in advanced applications, such as personalization of e-services, since it captures...
SSDBM
2008
IEEE
14 years 1 months ago
2008
IEEE
We propose an automatic method for modeling a relational database that uses SQL triggers and foreign-keys to efficiently answer positive semantic queries about ground instances for...