# Isolation

The property controlling how concurrent transactions can observe one another's work.

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

**Isolation** — The property controlling how concurrent transactions can observe one another's work.

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/isolation