1548 search results - page 232 / 310 » Client-Site Query Extensions |
156
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SSDBM
2000
IEEE
15 years 10 months ago
2000
IEEE
In implementations of non-standard database systems, large objects are often embedded within an aggregate of different types, i.e. a tuple. For a given size and access probabilit...
149
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SIGMOD
1997
ACM
15 years 10 months ago
1997
ACM
This paper presents general algorithms for concurrency control in tree-based access methods as well as a recovery protocol and a mechanism for ensuring repeatable read. The algori...
184
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NIL
1991
15 years 9 months ago
1991
In this paper we consider supernormal defaults [Poo88] with a strict partial order defining their priorities [Bre91]. We investigate their relation to minimal or preferential ent...
189
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CIDR
2007
15 years 7 months ago
2007
Biologists are increasingly using databases for storing and managing their data. Biological databases typically consist of a mixture of raw data, metadata, sequences, annotations,...
163
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APCCM
2009
15 years 7 months ago
2009
Using traditional semantic data modeling, multi-level modeling can be achieved by representing objects in different abstraction hierarchies, namely classification, aggregation and...