62 search results - page 11 / 13 » Query rewriting with symmetric constraints |
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ICDE
2007
IEEE
15 years 6 days ago
2007
IEEE
Logical constraints, (e.g., 'phone numbers in toronto can have prefixes 416, 647, 905 only'), are ubiquitous in relational databases. Traditional integrity constraints, ...
ENTCS
2006
13 years 11 months ago
2006
Model transformation means converting an input model available at the beginning of the transformation process to an output model. A widely used approach to model transformation us...
PVLDB
2010
13 years 9 months ago
2010
Independence analysis is the problem of determining whether an update affects the result of a query, e.g. a constraint or materialized view. We develop a new, modular framework fo...
VLDB
2007
ACM
14 years 11 months ago
2007
ACM
Recent research on skyline queries has attracted much interest in the database and data mining community. Given a database, an object belongs to the skyline if it cannot be domina...
ICLP
2009
Springer
14 years 11 months ago
2009
Springer
Abstract. Qualification has been recently introduced as a generalization of uncertainty in the field of Logic Programming. In this paper we investigate a more expressive language f...