34 search results - page 6 / 7 » Optimization of Nested SQL Queries by Tableau Equivalence |
76
Voted
SIGMOD
1996
ACM
15 years 1 months ago
1996
ACM
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
ICDE
2009
IEEE
15 years 4 months ago
2009
IEEE
— A paramount challenge in probabilistic databases is the scalable computation of confidences of tuples in query results. This paper introduces an efficient secondary-storage o...
104
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ECCB
2005
IEEE
15 years 3 months ago
2005
IEEE
Many areas of modern biology are concerned with the management, storage, visualization, comparison, and analysis of networks. For instance, networks are used to model signal trans...
73
Voted
CORR
2008
Springer
14 years 9 months ago
2008
Springer
A purely relational account of the true XQuery semantics can turn any relational database system into an XQuery processor. Compiling nested expressions of the fully compositional X...
178
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SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...