492 search results - page 59 / 99 » Computing aggregations in database query languages |
DEXA
2004
Springer
14 years 3 months ago
2004
Springer
Topological predicates between spatial objects have always been a main area of research on spatial data handling, reasoning, and query languages. The focus of research has definit...
SSDBM
2009
IEEE
14 years 4 months ago
2009
IEEE
We present a novel sensor network query processing architecture that (a) covers all the query optimization phases that are required to map a declarative query to executable code; ...
SAC
2010
ACM
14 years 4 months ago
2010
ACM
In this paper, we explore the problem of processing a novel type of location based queries, named the location based top-k query, which involves both of spatial and non-spatial sp...
CIKM
2009
Springer
14 years 4 months ago
2009
Springer
Due to an increasing volume of XML data, it is considered prudent to store XML data on an industry-strength database system instead of relying on a domain specific application or...
DBPL
1999
Springer
14 years 2 months ago
1999
Springer
We consider two-dimensional spatial databases defined in terms of polynomial inequalities and focus on the potential of programming languages for such databases to express queries...