---
title: Learn SQL
description: >
    Learn the basics of SQL, the industry standard for interacting
    with relational databases. These notebooks also show how easy
    it is to work with relational data in marimo.
tracking: 133
---

You can open and run these notebooks in [molab](https://molab.marimo.io), marimo's free hosted notebook platform.

## Notebooks

- [![Open in molab](https://marimo.io/molab-shield.svg)](https://molab.marimo.io/github/marimo-team/learn/blob/main/sql/01_basic_select.py) Basic Selection
- [![Open in molab](https://marimo.io/molab-shield.svg)](https://molab.marimo.io/github/marimo-team/learn/blob/main/sql/02_filter.py) Filtering
- [![Open in molab](https://marimo.io/molab-shield.svg)](https://molab.marimo.io/github/marimo-team/learn/blob/main/sql/03_aggregate_group.py) Aggregating and Grouping
- [![Open in molab](https://marimo.io/molab-shield.svg)](https://molab.marimo.io/github/marimo-team/learn/blob/main/sql/04_null.py) Missing Data
- [![Open in molab](https://marimo.io/molab-shield.svg)](https://molab.marimo.io/github/marimo-team/learn/blob/main/sql/05_join.py) Combining Tables
- [![Open in molab](https://marimo.io/molab-shield.svg)](https://molab.marimo.io/github/marimo-team/learn/blob/main/sql/06_keys.py) Primary and Foreign Keys

## Contributors

Thanks to our notebook authors:

* [Greg Wilson](https://github.com/gvwilson)