4.1 Relational Algebra
Unit 4 - Relational Database
Learn the fundamentals of Relational Algebra in this quick revision guide! Discover how databases retrieve and organise data using key operations such as Select (σ), Project (π), Union (∪), Intersection (∩), Difference (−), Join (⋈), and Cartesian Product (×). Perfect for BTEC, A-Level, and database students looking to strengthen their understanding of database queries and data manipulation.