550 search results - page 1 / 110 » An Expressive Language for Linear Spatial Database Queries |
PODS
1998
ACM
13 years 9 months ago
1998
ACM
PODS
2000
ACM
13 years 9 months ago
2000
ACM
We consider spatial databases in the plane that can be defined by polynomial constraint formulas. Motivated by applications in geographic information systems, we investigate line...
DBPL
1999
Springer
13 years 9 months ago
1999
Springer
Linear constraint databases and query languages are appropriate for spatial database applications. Not only the data model is natural to represent a large portion of spatial data s...
ACTA
2002
13 years 5 months ago
2002
In the constraint database community, FO+poly and FO+linear have been proposed as foundations for spatial database query languages. One of the strengths of this approach is that t...
DBPL
1999
Springer
13 years 9 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...