572 search results - page 58 / 115 » SQLST: A Spatio-Temporal Data Model and Query Language |
ADBIS
1997
Springer
15 years 2 months ago
1997
Springer
A graphical formalized language is proposed for specifying systems of views over database schemas. The language is based on the notion of arrow (mapping) between data schemas and ...
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PODS
2009
ACM
15 years 10 months ago
2009
ACM
The paper investigates the question of whether a partially closed database has complete information to answer a query. In practice an enterprise often maintains master data Dm, a ...
INFSOF
2006
14 years 9 months ago
2006
The parametric data model captures an object in terms of a single tuple. This feature eliminates unnecessary self-join operations to combine tuples scattered in a temporal relatio...
EDBT
2006
ACM
15 years 1 months ago
2006
ACM
As data management applications grow more complex, they may need efficient distributed query processing, but also subscription management, data archival etc. To enact such applicat...
SMA
2009
ACM
15 years 4 months ago
2009
ACM
We present practical algorithms for accelerating geometric queries on models made of NURBS surfaces using programmable Graphics Processing Units (GPUs). We provide a generalized f...