98 search results - page 6 / 20 » Query rewriting and answering under constraints in data inte... |
AWIC
2005
Springer
14 years 2 months ago
2005
Springer
In data integration systems there is a problem of answering queries through a target schema, given a set of mappings between source schemas and the target schema, and given that th...
CORR
2011
Springer
13 years 3 months ago
2011
Springer
Contemporary use of the term ’intension’ derives from the traditional logical doctrine that an idea has both an extension and an intension. In this paper we introduce an intens...
PODS
2004
ACM
14 years 8 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
CORR
2002
Springer
13 years 8 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...
EDBT
2004
ACM
14 years 8 months ago
2004
ACM
Given the current trend towards application interoperability and XML-based data integration, there is an increasing need for XML interfaces to relational database management system...