Database Normalization - Normal Forms and Conceptual Design | Database Tutorial 6n
In this lecture of the databases course we learn about the impact of normal forms (3NF and BCNF) on the conceptual design (entity-relationship models). If a good conceptual design is translated to the relational model, then the resulting database schema will automatically be in BCNF (Boyce-Codd normal form). If the normal form is violated, then this (usually) indicates a flaw in the conceptual design. We will learn how to detect and correct these flaws during the conceptual design phase (before the translation to the relational model).
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.
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