403 search results - page 36 / 81 » Constraint Databases and Geographic Information Systems |
RTSS
1996
IEEE
15 years 4 months ago
1996
IEEE
In this paper, issues involved in the design of a real-time database which maintains data temporal consistency are discussed. The concept of data-deadline is introduced and time co...
ACISICIS
2007
IEEE
15 years 6 months ago
2007
IEEE
ORN Additive is a prototype tool that was developed to show how the gap between database modeling and implementation can be reduced—more specifically, to show how associations d...
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ADVIS
2006
Springer
15 years 5 months ago
2006
Springer
A hitherto unquestioned assumption made by all methods for integrity checking has been that the database satisfies its constraints before each update. This consistency assumption ...
COSIT
1997
Springer
15 years 4 months ago
1997
Springer
Current geographic information systems (GISs) have been designed for querying and maintaining static databases representing static phenomena and give little support to those users ...
COMPGEOM
1996
ACM
15 years 4 months ago
1996
ACM
In this paper we show how to traverse a subdivision and to report all cells, edges and vertices, without making use of mark bits in the structure or a stack. We do this by perform...