151 search results - page 3 / 31 » DISCO: A Constraint Database System with Sets |
ICDT
2012
ACM
11 years 8 months ago
2012
ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
SEDE
2007
2007
A framework for constraint checking involving aggregates for multiple XML databases using schematron
13 years 7 months ago
Many internet and enterprise applications now not only use XML (eXtensible Markup Language) as a medium for communication but also for storing their data either temporarily for an...
SDB
1995
13 years 9 months ago
1995
Database transformations arise in many di erent settings including database integration, evolution of database systems, and implementing user views and data-entry tools. This paper...
SIGMOD
2005
ACM
14 years 6 months ago
2005
ACM
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...
ICDE
2012
IEEE
11 years 8 months ago
2012
IEEE
— Uncertainties in data arise for a number of reasons: when the data set is incomplete, contains conflicting information or has been deliberately perturbed or coarsened to remov...