152 search results - page 12 / 31 » Semantic Integrity Constraints for Spatial Databases |
108
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ER
2007
Springer
15 years 6 months ago
2007
Springer
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
105
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ISKI
1992
15 years 3 months ago
1992
One of the objectives of ooDBMSs is to use type-speci c methods for manipulating objects, in order to maintain the consistency of the database. This is, however, little help for t...
EDBTW
2006
Springer
15 years 3 months ago
2006
Springer
For several reasons a database may not satisfy a given set of integrity constraints (ICs), but most likely most of the information in it is still consistent with those ICs; and cou...
190
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VLDB
2008
ACM
15 years 12 months ago
2008
ACM
With the development of inexpensive storage devices, space usage is no longer a bottleneck for computer users. However, the increasingly large amount of personal information poses ...
SSDBM
2008
IEEE
15 years 6 months ago
2008
IEEE
We propose an automatic method for modeling a relational database that uses SQL triggers and foreign-keys to efficiently answer positive semantic queries about ground instances for...