Database Normalization - Multivalued Dependencies and Fourth Normal Form | Database Tutorial 6m

In this lecture of the databases course we consider multivalued dependencies and the fourth normal form (4NF). Multivalued dependencies are a generalization of functional dependencies. The 4NF is similar to BCNF, but based on multivalued dependencies instead of functional dependencies.

This is the databases online course given at the Vrije Universiteit Amsterdam by Jörg Endrullis. The course objective is to obtain a good understanding of relational database systems from the user perspective. This includes the ability to develop conceptual database models, as well as key concepts and skills in relational database theory and practice.

Among others, we treat in this course the following subjects:
(a) entity–relationship diagrams for the design of database schemata,
(b) the relational database model and integrity constraints,
(c) SQL (structured query language) for retrieving information from relational databases,
(d) database normalisation and functiona dependencies (reasoning about good database design),
(e) transactions and concurrency control.

The slides are based on work by Peter Boncz and Torsten Grust.

[funcionario]

Great! Could you give me an example of relation in 4th normal form with a MVD (x->->y) where x be a superkey ? Thx