640 search results - page 49 / 128 » Query Optimization Using Multiple SIP Strategies |
SIGMOD
2005
ACM
14 years 4 months ago
2005
ACM
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
ICDE
2003
IEEE
15 years 10 days ago
2003
IEEE
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
ATAL
2003
Springer
14 years 4 months ago
2003
Springer
In complex distributed applications, a problem is often decomposed into a set of subproblems that are distributed to multiple agents. We formulate this class of problems with a tw...
SBACPAD
2004
IEEE
14 years 11 days ago
2004
IEEE
Modern servers access large volumes of data while running commercial workloads. The data is typically spread among several storage devices (e.g. disks). Carefully placing the data...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
Peer data management systems (PDMS) offer a flexible architecture for decentralized data sharing. In a PDMS, every peer is associated with a schema that represents the peer's...