# Relational Closure

The property that relational operations return relations.

## What is **Relational Closure** in a relational database?

**Relational Closure** — The property that relational operations return relations.

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

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/relational-closure