2063 search results - page 22 / 413 » Containment of Aggregate Queries |
ADBIS
2000
Springer
14 years 2 months ago
2000
Springer
Queries involving aggregation are typical in a number of database research areas, such as data warehousing, global information systems and mobile computing. One of the main ideas ...
VLDB
1998
ACM
14 years 2 months ago
1998
ACM
Small Materialized Aggregates (SMAs for short) are considered a highly flexible and versatile alternative for materialized data cubes. The basic idea is to compute many aggregate ...
VLDB
2000
ACM
14 years 1 months ago
2000
ACM
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, ...
ICDE
2004
IEEE
14 years 11 months ago
2004
IEEE
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
The concept of time-constrained SQL queries was introduced to address the problem of long-running SQL queries. A key approach adopted for supporting time-constrained SQL queries i...