1497 search results - page 84 / 300 » Constraint Databases: A Survey |
SUM
2007
Springer
15 years 4 months ago
2007
Springer
Abstract. We present the Consistency Extractor System (ConsEx) that uses answer set programming to compute consistent answers to first-order queries posed to relational databases ...
JMLC
1997
Springer
15 years 2 months ago
1997
Springer
Abstract. We describe a system designed to provide database programming support for Oberon programmers. The system is based on a generic object-oriented data model which supports r...
VLDB
1992
ACM
15 years 1 months ago
1992
ACM
Change computation is an essential component in several capabilities of a deductive database,such as integrity constraints checking, materialized view maintenanceandcondition moni...
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
We present a declarative framework for collective deduplication of entity references in the presence of constraints. Constraints occur naturally in many data cleaning domains and c...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...