10210 search results - page 217 / 2042 » Configuring Database Systems |
139
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CIKM
1994
Springer
15 years 6 months ago
1994
Springer
This paper argues that most queries in object-oriented databases require traversing from one object to another in the aggregation hierarchy. Thus, the connections between objects ...
226
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VLDB
2008
ACM
16 years 2 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...
PDIS
1994
IEEE
15 years 6 months ago
1994
IEEE
Existing federated database systems (FDBS) provide uniform access to multiple heterogeneous DBS, but do not enable objects to move across the DBS while retaining global identity. ...
122
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DKE
1998
15 years 2 months ago
1998
The issues of schema evolution and temporal object models are generally considered to be orthogonal and are handled independently. However, to properly model applications that nee...
152
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FODO
1998
Springer
15 years 6 months ago
1998
Springer
In object-oriented database systems (OODB) with logical OIDs, an OID index (OIDX) is needed to map from OID to the physical location of the object. In a transaction time temporal ...