1248 search results - page 150 / 250 » Querying and Updating the File |
ICDE
2007
IEEE
14 years 11 months ago
2007
IEEE
Traditional DBMSs decouple statistics collection and query optimization both in space and time. Decoupling in time may lead to outdated statistics. Decoupling in space may cause s...
ICDE
1998
IEEE
14 years 11 months ago
1998
IEEE
?Past R-tree studies have focused on the number of nodes visited as a metric of query performance. Since database systems usually include a buffering mechanism, we propose that the...
VLDB
2008
ACM
14 years 10 months ago
2008
ACM
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...
SIGMOD
2006
ACM
14 years 10 months ago
2006
ACM
In outsourced database (ODB) systems the database owner publishes its data through a number of remote servers, with the goal of enabling clients at the edge of the network to acce...
DEXA
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. In relational database management systems indexes are used to accelerate specific queries. The selection of indexes is an important task when tuning a database which is ...