Dojo

SQL I

Use the skills you learned in the first 3 SQL Study lessons to take on these practical challenges.
As you progress, the challenges will become gradually more difficult. Take your time and review previous material whenever you have trouble.

2h
Estimated
Are you sure?
This will delete all the progress you've made in 「SQL Dojo I」.
Are you sure you want to restart?
Cancel
Restart

Start the lesson from the initial state.
Warning: your code will be deleted.

Review the lesson without
resetting your code.