11397 search results - page 211 / 2280 » A Relational Abstraction for Functions |
199
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DBPL
1995
Springer
15 years 10 months ago
1995
Springer
We study the problem of maintaining recursively-de ned views, such as the transitive closure of a relation, in traditional relational languages that do not have recursion mechanis...
315
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VLDB
2008
ACM
16 years 7 months ago
2008
ACM
Abstract In this article, we present a comprehensive approach for privacy preserving access control based on the notion of purpose. In our model, purpose information associated wit...
216
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ICMT
2009
Springer
16 years 1 months ago
2009
Springer
Abstract. The QVT Relations (QVT-R) transformation language allows the definition of bidirectional model transformations, which are required in cases where a two (or more) models ...
301
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ICDE
2006
IEEE
16 years 8 months ago
2006
IEEE
Relational data streams and XML streams have previously provided two separate research foci, but their unified support by a single Data Stream Management System (DSMS) is very des...
233
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BMCBI
2008
15 years 7 months ago
2008
Background: The increasing amount of published literature in biomedicine represents an immense source of knowledge, which can only efficiently be accessed by a new generation of a...