106 search results - page 12 / 22 » Query Optimization by Predicate Move-Around |
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
The ongoing revolution in life sciences research is producing vast amounts of genetic and proteomic sequence data. Scientists want to pose increasingly complex queries on this dat...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Well-designed indices can dramatically improve query performance. Including query workload information can produce indices that yield better overall throughput while balancing the...
VLDB
1991
ACM
13 years 11 months ago
1991
ACM
In this paper we present a technique to optimize queries on deductive databases that use aggregate operations such as min, max, and “largest Ic values.” Our approach is based ...
PVLDB
2008
13 years 7 months ago
2008
Estimates of predicate selectivities by database query optimizers often differ significantly from those actually encountered during query execution, leading to poor plan choices a...
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
A large fraction of an XML document typically consists of text data. The XPath query language allows text search via the equal, contains, and starts-with predicates. Such predicate...