26 search results - page 2 / 6 » Improved Unnesting Algorithms for Join Aggregate SQL Queries |
SIGMOD
2000
ACM
13 years 9 months ago
2000
ACM
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...
VLDB
1995
ACM
13 years 9 months ago
1995
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering and query rewrite (JOQR) followed by parallelization. We focus on t...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
Prior work on computing queries from materialized views has focused on views defined by expressions consisting of selection, projection, and inner joins, with an optional aggrega...
KDD
2004
ACM
13 years 10 months ago
2004
ACM
Using SQL has not been considered an efficient and feasible way to implement data mining algorithms. Although this is true for many data mining, machine learning and statistical a...
DOLAP
2003
ACM
13 years 10 months ago
2003
ACM
Multidimensional aggregation queries constitute the single most important class of queries for data warehousing applications and decision support systems. The bottleneck in the ev...