The state of change: A survey.- Specification of dynamics for knowledge-based systems.- On active deductive databases: The statelog approach.- Active-U-Datalog: Integrating active rules in a logical update language.- Logical transactions and serializability.- Results on reasoning about updates in Transaction Logic.- The dynamics of database views.- Inductive definability and the situation calculus.- Some notes on knowledge assimilation in deductive databases.- Applications of belief revision.- Analysing rational properties of change operators based on forward chaining.- A practical approach to hypothetical database queries.- From extensional to intensional knowledge: Inductive logic programming techniques and their application to deductive databases.