1860 search results - page 56 / 372 » A Model of Queries for Object-Oriented Databases |
100
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VLDB
1991
ACM
15 years 4 months ago
1991
ACM
We explore the implications of supporting bags (i.e. multisets) in a data model and associated query language, and present some formal results concerned with the algebraic propert...
VLDB
2005
ACM
15 years 6 months ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
103
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FQAS
2006
Springer
15 years 4 months ago
2006
Springer
We present a functional model for the analysis of large volumes of detailed transactional data, accumulated over time. In our model, the data schema is an acyclic graph with a sing...
104
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CDB
2004
Springer
15 years 4 months ago
2004
Springer
Abstract. Constraint databases that can be described by boolean combinations of polynomial inequalities over the reals have received ample research attention. In particular, the ex...
ICDE
2010
IEEE
15 years 5 months ago
2010
IEEE
— While planning the execution of report-generation workloads, database administrators often need to know how long different query workloads will take to run. Database systems ru...