# Denormalization

Deliberately adding controlled redundancy to support a measured performance or reporting need.

## What is **Denormalization** in a relational database?

**Denormalization** — Deliberately adding controlled redundancy to support a measured performance or reporting need.

Level: Journeyman · [More Database terms at this level](https://www.ask-codey.com/glossary/subjects/database/journeyman)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/denormalization