# Alternate Key

A candidate key not selected as the primary key.

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

**Alternate Key** — A candidate key not selected as the primary key.

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/alternate-key