# Optionality

Whether participation in a relationship is required or optional.

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

**Optionality** — Whether participation in a relationship is required or optional.

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

Updated: September 27, 2026

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