Feature Requests

Manual testing of challenges to ensure the example matches the sample data and the wording of the challenge is very clear.

A way to write and run queries on the site. It would be nice if this had different database options and nice SQL formatting. This would facilitate new challenge types like performance optimisations, different DB extensions etc.

Public and private leaderboards would be fun to compare your performance against other users.

Hints should link to videos and resources explaining the concept in more detail.

The ability register and login with Google or Github.

Hi there, right now its 12 jan 2026. I saw this advent of sql on reddit, and wanted to try out , but unlike advent of code, which i can do start at any time and can do all questions as i complete previous ones regardless of i started in the challenge period or not, but i didn't find way to do other than last question in advent of sql. I mean there is no way i need to only start in given time period, okay i don't want badge of like completion of the original period when questions were released, but i want to just practice for learning.

This will help users who wish to go back and refactor or simplify their solutions and allow them to check that their updated SQL remains correct.