492 search results - page 8 / 99 » Computing aggregations in database query languages |
SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
We present HERMES, a prototype system based on a powerful query language for trajectory databases, which enables the support of aggregative Location-Based Services (LBS). The key ...
VLDB
2004
ACM
14 years 3 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
CC
2010
Springer
14 years 4 months ago
2010
Springer
Instead of writing SQL queries directly, programmers often prefer writing all their code in a general purpose programming language like Java and having their programs be automatica...
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 ...
SIGMOD
2005
ACM
14 years 10 months ago
2005
ACM
Database query languages can be intimidating to the nonexpert, leading to the immense recent popularity for keyword based search in spite of its significant limitations. The holy ...