101 search results - page 1 / 21 » Consistent query answering under inclusion dependencies |
CASCON
2004
13 years 6 months ago
2004
For several reasons a database may not satisfy certain integrity constraints (ICs), for example, when it is the result of integrating several independent data sources. However, mo...
FQAS
2006
Springer
13 years 8 months ago
2006
Springer
Consistent query answering is the term commonly used for the problem of answering queries on databases that violate certain integrity constraints. We address this problem for univ...
IJCAI
2003
13 years 6 months ago
2003
In this paper we address the problem of query answering and rewriting in global-as-view data integration systems, when key and inclusion dependencies are expressed on the global i...
ICDE
1998
IEEE
13 years 9 months ago
1998
IEEE
Query folding is a technique for determining how a query may be answered using a given set of resources, which may include materialized views, cached results of previous queries, ...
VLDB
1987
ACM
13 years 8 months ago
1987
ACM
In a context considering in a unique framework all the relations in a database, by means of the notion of global consistency, independent database schemes allow enforcement of con...