716 search results - page 7 / 144 » Optimizing Queries in Extended Relational Databases |
EDBT
2006
ACM
14 years 10 months ago
2006
ACM
Federated queries are regular relational queries accessing data on one or more remote relational or non-relational data sources, possibly combining them with tables stored in the ...
ADBIS
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
OTM
2005
Springer
14 years 3 months ago
2005
Springer
: The paper presents a solution of the problem of wrapping relational databases to an object-oriented business model in the data grid architecture. The main problem with this kind ...
COOPIS
2003
IEEE
14 years 3 months ago
2003
IEEE
The use of semantic knowledge in its various forms has become an important aspect in managing data in database and information systems. In the form of integrity constraints, it ha...