6004 search results - page 531 / 1201 » Parallelizing query optimization |
173
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BNCOD
2008
15 years 8 months ago
2008
Abstract. Accurate selectivity estimations are essential for query optimization decisions where they are typically derived from various kinds of histograms which condense value dis...
267
Voted
PODS
2009
ACM
16 years 7 months ago
2009
ACM
The B-tree is a fundamental external index structure that is widely used for answering one-dimensional range reporting queries. Given a set of N keys, a range query can be answere...
153
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ISHPC
2003
Springer
15 years 12 months ago
2003
Springer
Abstract. The class of dense circulant graphs of degree four with optimal distance-related properties is analyzed in this paper. An algebraic study of this class is done. Two geome...
315
Voted
ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Increasing prevalence of large-scale distributed monitoring and computing environments such as sensor networks, scientific federations, Grids etc., has led to a renewed interest in...
161
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VLDB
1997
ACM
15 years 10 months ago
1997
ACM
In this paper we describe novel techniques that make it possible to build an industrial-strength tool for automating the choice of indexes in the physical design of a SQL database...