# Composite Key

A key made from two or more attributes.

## What is **Composite Key** in a relational database?

**Composite Key** — A key made from two or more attributes.

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/composite-key