Multivalued dependencies and Fourth Normal Form. The chase for testing lossless joins and preserving data dependencies. Objectives of query processing. Query optimisation by query decomposition and algebraic restructuring. Distinguishing between the extensional and intentional data- bases.
Deductive database architectures.
Objects and Object identifiers. A complex object data model and an algebra for complex objects. An introduction to distributed databases. A Guided Tour of Relational Databases and Beyond, by Levene and Louzou, Published by Springer Verlag, 1999.