Semantics in Databases: Second International Workshop, Dagstuhl Castle, Germany, January 7-12, 2001, Revised Papers (Paperback, 2003)

Semantics in Databases.- Characterizing and Computing Semantically Correct Answers from Databases with Annotated Logic and Answer Sets.- Towards Unifying Semantic Constraints and Security Constraints.- Historical and Computational Aspects of Paraconsistency in View of the Logic Foundation of Databases.- Soft Constraints and Heuristic Constraint Correction in Entity-Relationship Modelling.- Characterization of Type Hierarchies with Open Specification.- Null Values in Relational Databases and Sure Information Answers.- Consistency Enforcement in Databases.- Automata- and Logic-Based Pattern Languages for Tree-Structured Data.- Cardinality Constraints in Disjunctive Deductive Databases.- Semantic Classifications of Queries to Relational Databases.