'Bcnf violation' presentation slideshows

CS 405G: Introduction to Database Systems

536 views • 44 slides

CS 405G: Introduction to Database Systems

518 views • 29 slides

4NF and 5NF

4NF and 5NF. CS157A Lecture 19. Prof. Sin-Min Lee Department of Computer Science. Schedule. Today: Jan. 15 (T) Normal Forms, Multivalued Dependencies. Read Sections 3.6-3.7. Assignment 1 due. Jan. 17 (TH) Relational Algebra. Read Chapter 5. Project Part 1 due. Jan. 22 (T) SQL Queries.

424 views • 28 slides

Agenda

399 views • 26 slides

Normalization ???

Normalization ???. Anomalies Boyce-Codd Normal Form 3 rd Normal Form. Anomalies ??. Goal of relational schema design is to avoid anomalies and redundancy. Redundancy : Information may be repeated unnecessarily in several tuples.

377 views • 25 slides

Database Management Systems Chapter 3 The Relational Data Model (III)

Database Management Systems Chapter 3 The Relational Data Model (III). Instructor: Li Ma Department of Computer Science Texas Southern University, Houston. September, 2006. Normalization. Anomalies Boyce-Codd Normal Form 3 rd Normal Form. Anomalies.

363 views • 23 slides

Normalization

Normalization. Anomalies Boyce-Codd Normal Form 3 rd Normal Form. Anomalies. Goal of relational schema design is to avoid anomalies and redundancy. Update anomaly : one occurrence of a fact is changed, but not all occurrences.

211 views • 21 slides

Multivalued Dependencies

Multivalued Dependencies. Fourth Normal Form. Source: Slides by Jeffrey Ullman. Definition of MVD.

454 views • 18 slides

Normalization

333 views • 18 slides

Functional Dependencies (FD)

286 views • 18 slides