juniorDatabases
What is Database Normalization?
Updated Apr 28, 2026
Short answer
The process of organizing data to reduce redundancy and improve data integrity.
Deep explanation
Deep dive into foundational storage. Understanding how data is stored on disk vs memory. Discussion on the relational model proposed by E.F. Codd.
Real-world example
A library system where books (primary key) are linked to authors (foreign key).
Common mistakes
- Confusing NULL with an empty string.
Follow-up questions
- What is 3NF?