315 search results - page 37 / 63 » An Overview of Query Optimization in Relational Systems |
DEXAW
1999
IEEE
13 years 12 months ago
1999
IEEE
This paper describes an algebra for use with parallel object databases, and in particular ODMG compliant databases with OQL. Although there have been many proposals for parallel r...
CORR
2008
Springer
13 years 7 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...
ICDE
1997
IEEE
14 years 9 months ago
1997
IEEE
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
EDBT
2010
ACM
13 years 11 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...
VLDB
2002
ACM
13 years 7 months ago
2002
ACM
Star queries are the most prevalent kind of queries in data warehousing, OLAP and business intelligence applications. Thus, there is an imperative need for efficiently processing ...