427 search results - page 13 / 86 » Querying and Manipulating Temporal Databases |
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
We present a valid-time extension of SQL and investigate its efficient implementation on an Object-Relational database system. We propose an approach where temporal queries are ex...
ISVC
2009
Springer
14 years 7 days ago
2009
Springer
Abstract. We describe a proximity query algorithm for the exact minimum distance computation between arbitrarily shaped objects. Special characteristics of the Gilbert-Johnson-Keer...
DEXAW
2004
IEEE
13 years 11 months ago
2004
IEEE
In order to obtain a suitable model of the universe of discourse of some information systems, it is important to allow the description of imprecise objects with temporal indetermi...
JOT
2006
13 years 7 months ago
2006
Many data base applications require the storage and manipulation of different versions of data objects. To satisfy the diverse needs of these applications, current database system...
DEXAW
2004
IEEE
13 years 11 months ago
2004
IEEE
The Web is moving to a new generation in which machine-understandable processing is mandatory. In order to achieve this goal it is essential to define ontologies which enable the ...