Consistent query answering under inclusion dependencies

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, most likely most of the information in it is still consistent with the ICs; and could be retrieved when queries are answered. Consistent answers with respect to a set of ICs have been characterized as answers that can be obtained from every possible minimal repair of the database. In this paper we show and analyze how specify those repairs using disjunctive logic program with a stable model semantics in the presence of referential ICs. In this case, repairs are obtained

• Type: Conference
• Year: 2004
• Where: CASCON
• Authors: Loreto Bravo, Leopoldo E. Bertossi
• Keywords: CASCON 2004, CASCON 2007, Certain Integrity Constraints, Independent Data Sources, Repairs