024. from flat to relational: rescuing redundant data (ks3)
Understand the difference between flat files and relational databases, and learn how linking tables prevents messy, redundant data storage.
Imagine writing down your home address every single time you bought something at a shop - it would be repetitive and annoying. Flat databases make this same mistake, storing the exact same information over and over again. We are going to rescue our data by exploring relational databases. You will learn how linking different tables together keeps information organised, accurate, and free from repetition.
Last modified: March 25th, 2026
