429 search results - page 19 / 86 » A SAT approach to query optimization in mediator systems |
VLDB
1997
ACM
14 years 22 days ago
1997
ACM
Scheduling query execution plans is a particularly complex problem in hierarchical parallel systems, where each site consists of a collection of local time-shared (e.g., CPU(s) or...
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Time-referenced data are pervasive in most real-world databases. Recent advances in temporal query languages show that such database applications may benefit substantially from bu...
ICDE
2005
IEEE
14 years 2 months ago
2005
IEEE
¡ Several systems have recently been proposed for the evaluation of XPath expressions. However, none of these systems have demonstrated both scalability with large document sizes ...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Commercial database systems expose query hints to address situations in which the optimizer chooses a poor plan for a given query. However, current query hints are not flexible eno...
ADBIS
2007
Springer
14 years 2 months ago
2007
Springer
The exponential growth of the web and the extended use of database management systems in widely distributed information systems has brought to the fore the need for seamless interc...