287 search results - page 3 / 58 » Optimization Techniques for Queries with Expensive Methods |
WEBDB
2000
Springer
13 years 11 months ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
ICDT
2003
ACM
14 years 17 days ago
2003
ACM
All the languages for querying semistructured data and the web use as an integral part regular expressions. Based on practical observations, finding the paths that satisfy those r...
BNCOD
1997
13 years 8 months ago
1997
Abstract. In this paper we present two improvements to the partitioning process: 1) A new dynamic bu er management strategy is employed to increase the average block size of I/O-tr...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
Federated queries are regular relational queries accessing data on one or more remote relational or non-relational data sources, possibly combining them with tables stored in the ...
EDBT
2010
ACM
13 years 10 months ago
2010
ACM
A key advantage of scientific workflow systems over traditional scripting approaches is their ability to automatically record data and process dependencies introduced during workf...