Consistent Query Answering for Primary Keys in Datalog
Sign Up to like & getrecommendations! Published in 2020 at "Theory of Computing Systems"
DOI: 10.1007/s00224-020-09985-6
Abstract: We study the complexity of consistent query answering on databases that may violate primary key constraints. A repair of such a database is any consistent database that can be obtained by deleting a minimal set… read more here.
Keywords: query answering; consistent query; primary keys; query ... See more keywords
Holistic primary key and foreign key detection
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Intelligent Information Systems"
DOI: 10.1007/s10844-019-00562-z
Abstract: Primary keys (PKs) and foreign keys (FKs) are important elements of relational schemata in various applications, such as query optimization and data integration. However, in many cases, these constraints are unknown or not documented. Detecting… read more here.
Keywords: holistic primary; key detection; foreign keys; primary keys ... See more keywords