What is Normalisation?
Organising a database to reduce redundancy by splitting data into related tables.
Why It Matters
Normalisation prevents data inconsistencies and reduces storage waste by storing each piece of information only once.
Real-World Example
Storing customer addresses in a separate table rather than repeating them in every order record.
“Understanding terms like Normalisation matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
Related Terms
Denormalisation
Deliberately adding redundant data to a database to improve read performance.
Database
An organised collection of data that your application can store, retrieve, and update
Schema
A blueprint that defines the structure of your data, including fields and their types
SQL
A language for communicating with databases, used to create, read, update, and delete data
From definition to deployment
Knowing the term is step one. Using it in something real is the rest.