Sciweavers

236 search results - page 6 / 48
» OLAP Query Processing in a Database Cluster
Sort
View
VLDB
2000
ACM
151views Database» more  VLDB 2000»
13 years 11 months ago
The TreeScape System: Reuse of Pre-Computed Aggregates over Irregular OLAP Hierarchies
We present the TreeScape system that, unlike any other system known to the authors, enables the reuse of pre-computed aggregate query results for irregular dimension hierarchies, ...
Torben Bach Pedersen, Christian S. Jensen, Curtis ...
SIGMOD
2008
ACM
96views Database» more  SIGMOD 2008»
14 years 7 months ago
OLAP on sequence data
Many kinds of real-life data exhibit logical ordering among their data items and are thus sequential in nature. However, traditional online analytical processing (OLAP) systems an...
Eric Lo, Ben Kao, Wai-Shing Ho, Sau Dan Lee, Chun ...
EDBT
2008
ACM
161views Database» more  EDBT 2008»
14 years 7 months ago
Load distribution of analytical query workloads for database cluster architectures
Enterprises may have multiple database systems spread across the organization for redundancy or for serving different applications. In such systems, query workloads can be distrib...
Thomas Phan, Wen-Syan Li
EDBT
2010
ACM
125views Database» more  EDBT 2010»
13 years 10 months ago
A plan for OLAP
So far, data warehousing has often been discussed in the light of complex OLAP queries and as reporting facility for operative data. We argue that business planning as a means to ...
Bernhard Jaecksch, Wolfgang Lehner, Franz Faerber
EDBT
2004
ACM
145views Database» more  EDBT 2004»
14 years 7 months ago
CUBE File: A File Structure for Hierarchically Clustered OLAP Cubes
Abstract. Hierarchical clustering has been proved an effective means for physically organizing large fact tables since it reduces significantly the I/O cost during ad hoc OLAP quer...
Nikos Karayannidis, Timos K. Sellis, Yannis Kouvar...