315 search results - page 41 / 63 » An Overview of Query Optimization in Relational Systems |
ICLP
2009
Springer
14 years 8 months ago
2009
Springer
Probabilistic logic programs (PLPs) define a set of probability distribution functions (PDFs) over the set of all Herbrand interpretations of the underlying logical language. When...
PODS
2009
ACM
14 years 8 months ago
2009
ACM
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
DASFAA
2003
IEEE
14 years 25 days ago
2003
IEEE
Various models and approaches have been proposed for mapping XML data into relational tables recently. Most of those approaches produce relational schema for given XML data, based...
ICDT
2005
ACM
14 years 1 months ago
2005
ACM
Abstract. A classical problem in query optimization is to find the optimal ordering of a set of possibly correlated selections. We provide an ion of this problem as a generalizati...
ICDE
1993
IEEE
13 years 11 months ago
1993
IEEE
Emerging database application domains demand not only new functionality but also high performance. To satisfy these two requirements, the Volcano project provides efficient, exten...