995 search results - page 30 / 199 » Optimization of Complex Nested Queries in Relational Databas... |
222
Voted
ICDT
2009
ACM
16 years 2 months ago
2009
ACM
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
118
Voted
CC
2010
Springer
15 years 8 months ago
2010
Springer
Instead of writing SQL queries directly, programmers often prefer writing all their code in a general purpose programming language like Java and having their programs be automatica...
100
Voted
VLDB
1989
ACM
15 years 5 months ago
1989
ACM
An important direction in database research for non-standard applications (e.g. engineering or design applications) deals with adequate support for complex objects. Without doubt,...
233
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ICDE
2002
IEEE
16 years 3 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
124
Voted
ICDT
2010
ACM
15 years 6 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...