365 search results - page 1 / 73 » Answering Non-Monotonic Queries in Relational Data Exchange |
ICDT
2010
ACM
13 years 8 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
CIKM
2011
Springer
12 years 4 months ago
2011
Springer
We consider data exchange for XML documents: given source and target schemas, a mapping between them, and a document conforming to the source schema, construct a target document a...
PODS
2008
ACM
14 years 4 months ago
2008
ACM
Data exchange, also known as data translation, has been extensively investigated in recent years. One main direction of research has focused on the semantics and the complexity of...
PODS
2004
ACM
14 years 4 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...
ICDT
2009
ACM
14 years 5 months ago
2009
ACM
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...