---
title: Variables Overview
description: Learn how to create and use static and query-based variables in OpenObserve Dashboards to filter data dynamically in SQL or PromQL chart queries.
---

This section introduces the concept of variables in OpenObserve dashboards. The following pages explain how to configure and use variables, the different types available, and how to define dependencies between variables.

**Learn more:** 

- [Variables in OpenObserve](variables-in-openobserve.md)
- [Variable Types](variable-types.md)
- [Variable Dependencies](variable-dependencies.md)