1497 search results - page 57 / 300 » Constraint Databases: A Survey |
IJIS
2010
14 years 7 months ago
2010
In this paper we study the ramification problem in the setting of temporal databases. Standard solutions from the literature on reasoning about action are inadequate because they ...
PODS
2003
ACM
15 years 10 months ago
2003
ACM
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...
ICDE
2005
IEEE
15 years 3 months ago
2005
IEEE
Abstract Although e-commerce is becoming popular, product rules, which describe various conditions such as prices, applicability, and discount conditions are still expressed in nat...
138
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SIGMOD
2007
ACM
15 years 10 months ago
2007
ACM
We show that aggregate constraints (as opposed to pairwise constraints) that often arise when integrating multiple sources of data, can be leveraged to enhance the quality of dedu...
144
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
As XML-based messages have become common in many client-server protocols, there is a need to protect application servers from invalid or dangerous messages. This leads to the XML ...