152 search results - page 12 / 31 » Semantic Integrity Constraints for Spatial Databases |
149
Voted
ER
2007
Springer
15 years 9 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...
141
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ISKI
1992
15 years 7 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...
120
Voted
EDBTW
2006
Springer
15 years 7 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...
236
Voted
VLDB
2008
ACM
16 years 3 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 ...
124
Voted
SSDBM
2008
IEEE
15 years 10 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...