Databases Course - Database Normalization - Determinants | Database Tutorial 6f

In this lecture of the databases course we learn about determinants. A determinant for a set of attributes Y is a non-trivial functional dependency X → Y whose left-hand side is minimal (no attribute can be dropped from X). So determinants are similar to keys, but they do not necessarily determine all attributes of the relation. We will also see how to compute all determinants for a given set of attributes. 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.