152 search results - page 8 / 31 » Semantic Integrity Constraints for Spatial Databases |
125
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CORR
2002
Springer
14 years 11 months ago
2002
Springer
A relational database is inconsistent if it does not satisfy a given set of integrity constraints. Nevertheless, it is likely that most of the data in it is consistent with the co...
129
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AGILE
2007
Springer
2007
Springer
Towards Spatial Reasoning in the Semantic Web: A Hybrid Knowledge Representation System Architecture
15 years 6 months ago
Environmental databases store a wide variety of data from heterogeneous sources which are described with domain-specific terminologies and refer to distinct locations. In order to ...
107
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VLDB
1990
ACM
15 years 3 months ago
1990
ACM
Database programming requires having the knowledge of database semantics both to maintain database integrity and to explore more optimization opportunities. Automated programming ...
DOLAP
2005
ACM
15 years 1 months ago
2005
ACM
Data warehouses and OLAP systems help to interactively analyze huge volume of data. This data, extracted from transactional databases, frequently contains spatial information whic...
108
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IS
2007
14 years 11 months ago
2007
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). Such queries are pa...