1542 search results - page 171 / 309 » Redundancy in Spatial Databases |
XSYM
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. We propose a mapping from the Enhanced Entity Relationship conceptual model to the W3C XML Schema Language with the following properties: information and integrity constr...
DEXA
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. This paper proposes a natural extension of conditional functional dependencies (cfds [14]) and conditional inclusion dependencies (cinds [8]), denoted by cfdp s and cindp...
SIGMOD
1996
ACM
14 years 2 months ago
1996
ACM
Object-Relational and Object-Oriented DBMSs allow users to invoke time-consuming ("expensive") methods in their queries. When queries containing these expensive methods a...
ICDT
1995
ACM
14 years 1 months ago
1995
ACM
A tuple t1 of relation R subsumes tuple t2 of R, with respect to a query Q if for every database, tuple t1 derives all, and possibly more, answers to query Q than derived by tuple ...
FSS
2008
13 years 10 months ago
2008
Multidimensional databases are now recognized as being the standard way to store aggregated and historized data. Multidimensional databases are designed to store information on me...