363 search results - page 49 / 73 » Analyzing Plan Diagrams of Database Query Optimizers |
GIS
2008
ACM
14 years 10 months ago
2008
ACM
Trip planning search (TPS) represents an important class of queries in Geographic Information Systems (GIS). In many real-world applications, TPS requests are issued with a number...
DEBU
2000
13 years 8 months ago
2000
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
CIDR
2007
13 years 10 months ago
2007
Database indices provide a non-discriminative navigational infrastructure to localize tuples of interest. Their maintenance cost is taken during database updates. In this paper, w...
PPDP
2010
Springer
13 years 7 months ago
2010
Springer
This paperdescribes the use of a powerful graph query language for querying programs, and a novel combination of transformations for generating efficient implementations of the q...
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Database system architectures are undergoing revolutionary changes. Most importantly, algorithms and data are being unified by integrating programming languages with the database ...