Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions
Find out more Download brochure

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

A 3.2.5 Normal Forms

This section explains normal forms (1NF, 2NF, 3NF) in relational databases. It covers atomicity, unique identification, functional/partial-key/transitive dependencies. Normalization reduces data duplication, missing data, and dependency issues to ensure data integrity. Last updated 08/02/2026 Link to presentation The student eBook contains clear explanations in line with the teacher presentation to help them...

Help