INFSOF
2000
13 years 4 months ago
2000
Semantic query optimization is the process of utilizing information implied by integrity constraints to reformulate the query into one that generates the same set of answers in a ...
CORR
2002
Springer
13 years 4 months ago
2002
Springer
We address the problem of minimal-change integrity maintenance in the context of integrity constraints in relational databases. We assume that integrity-restoration actions are li...
CORR
2002
Springer
13 years 4 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...
APIN
2002
13 years 4 months ago
2002
Abstract. In this paper, we describe how to realise alarm-correlation in cellular phone networks using extended logic programming which provides integrity constraints, implicit and...
IS
2007
13 years 4 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...
SIAMCOMP
2008
13 years 4 months ago
2008
XML specifications often consist of a type definition (typically, a DTD) and a set of integrity constraints. It has been shown previously that such specifications can be inconsiste...
IAJIT
2008
13 years 4 months ago
2008
: In this paper a run-time model is proposed. The run-time model enforces integrity constraints for attributes that are derived from composition and inheritance hierarchies. The ru...
DKE
2010
13 years 4 months ago
2010
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
AMAI
2007
Springer
13 years 4 months ago
2007
Springer
Abstract In many scenarios, a database instance violates a given set of integrity constraints. In such cases, it is often required to repair the database, that is, to restore its c...
AMW
2009
13 years 5 months ago
2009
Abstract. This paper introduces a formalization of a set of spatial semantic integrity constraints on an extended-relational database model. The formalization extends traditional n...