A-Level Computer Science – Database Normalisation to Third Normal Form Explained (OCR / AQA) | S4:Ep3

This Episode outlines the fundamental concepts of relational databases, explaining that data is stored in tables (relations) with rows representing records and columns representing attributes. It details the process of normalization, a method for designing efficient databases by reducing data duplication and enhancing data integrity. The document elaborates on the three normal forms (1NF, 2NF, 3NF), illustrating how to structure tables to eliminate repeating attributes, partial dependencies, and non-key dependencies, respectively. Finally, it highlights the significant advantages of normalization, such as easier maintenance, faster searches, and improved data consistency.