492 search results - page 35 / 99 » Computing aggregations in database query languages |
VLDB
2004
ACM
14 years 10 months ago
2004
ACM
Indatawarehousingapplications,numerousOLAP queries involve the processing of holistic aggregators such as computing the "top n," median, quantiles, etc. In this paper, we...
VLDB
2007
ACM
14 years 10 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...
ICDE
2003
IEEE
14 years 11 months 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...
GPCE
2008
Springer
13 years 11 months ago
2008
Springer
High-level query constructs help greatly improve the clarity of programs and the productivity of programmers, and are being introduced to increasingly more languages. However, the...
ADBIS
2007
Springer
14 years 1 months ago
2007
Springer
Query mapping to aggregation lattices is used in order to exploit sub-cube dependencies in multidimensional databases. It is employed in mobile OLAP dissemination systems, in order...