4397 search results - page 771 / 880 » Relational Algebra Operations |
126
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SRDS
1998
IEEE
15 years 3 months ago
1998
IEEE
A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different site...
112
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MOBICOM
1998
ACM
15 years 3 months ago
1998
ACM
In this paper we introduce universal mobile channels, a le communications abstraction that enables users and service providers to program application-speci c adaptive mobile servi...
SIGMOD
1993
ACM
15 years 3 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...
VLDB
1992
ACM
15 years 3 months ago
1992
ACM
This paper evaluates the performance of the parallel, main-memory DBMS, PRISMA/DB. First, an architecture for parallel query execution is presented. A performance model for the ex...
125
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CCA
2009
Springer
15 years 3 months ago
2009
Springer
Abstract. In this paper we study a new approach to classify mathematical theorems according to their computational content. Basically, we are asking the question which theorems can...