Using dummy data in ehrQL

This tutorial provides practical steps for learning about ehrQL's dummy data.

It focuses primarily on the use of dummy tables.

You will work through using ehrQL to:

• understand the dummy data options available natively in ehrQL
• use ehrQL to generate custom dummy tables
• use ehrQL's show feature to test ehrQL code against your dummy tables

The tutorial is interactive. You will get the most out of it if you run the code yourself, and do experiments by changing the code and trying to explain what you see.

The ehrQL code that we'll look at in this tutorial is quite simple, however, it is assumed that you are not completely new to ehrQL. We would recommend following the Introduction to ehrQL tutorial to learn more about ehrQL itself.

You can also find a tutorial for writing an OpenSAFELY study in our Getting started guide.

Get started with Setting up.

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