2674 search results - page 250 / 535 » Data Models and Query Languages for Spatial Databases |
169
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ER
2005
Springer
16 years 1 days ago
2005
Springer
In this paper a novel approach for the tool–based quality assurance of models is presented. The approach provides a meta model framework for domain specific and tool–independe...
180
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WWW
2010
ACM
16 years 1 months ago
2010
ACM
Relational databases hold a vast quantity of information and making them accessible to the web is an big challenge. There is a need to make these databases accessible with as litt...
256
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ICDE
2003
IEEE
16 years 7 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...
171
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ICALP
2005
Springer
16 years 16 hour ago
2005
Springer
We study a clean machine model for external memory and stream processing. We show that the number of scans of the external data induces a strict hierarchy (as long as work space is...
177
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EGC
2005
Springer
16 years 1 days ago
2005
Springer
We present a new approach to the grid technology that is based on federated databases and updatable views. Views are used in two ways: (1) as wrappers of local servers that adopt l...