624 search results - page 82 / 125 » Mutant Query Plans |
VLDB
1997
ACM
14 years 2 months ago
1997
ACM
Selecting views to materialize is one of the most important decisions in designing a data warehouse. In this paper, we present a framework for analyzing the issues in selecting vi...
SSDBM
2007
IEEE
14 years 4 months ago
2007
IEEE
Space-partitioning trees, like the disk-based trie, quadtree, kd-tree and their variants, are a family of access methods that index multi-dimensional objects. In the case of index...
VLDB
1994
ACM
14 years 2 months ago
1994
ACM
Physical data independence is touted as a central feature of modern database systems. Both relational and object-oriented systems, however, force users to frame their queries in t...
CORR
2008
Springer
13 years 10 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...
GIS
2007
ACM
14 years 1 months ago
2007
ACM
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...