Terms of use and sale
Last updated: 2026-11-11.
These terms apply to SQL Dojo (https://sqldojo.dev), published by Maxime Lemaitre (see the legal notice), "we" below. Using the site, or buying Pro, means accepting them.
1. The service
SQL Dojo is a site for learning SQL and analytics engineering by practice: exercises checked automatically, a reference, exams and interview practice. The queries run in your own browser.
2. Accounts
You can use the free part without an account. An account is free: it syncs your progress across your devices, with or without Pro, and it is needed to buy Pro. Give a working email address and keep access to it: it is how you sign in. One account is for one person. You can delete your account at any time from the ⚙ menu.
3. Free and Pro
The free part and what Pro adds are described on the Pro page, as they stand on the day you buy. Pro is personal: do not share your account.
4. Prices and payment
Prices are shown on the Pro page and at checkout, taxes included where they apply. Payment is handled by Stripe, through its Link service, which sells Pro to you as merchant of record: it takes the payment, charges the tax of your country and sends the receipt. Its own terms apply to the payment. We never see your card details.
5. A single payment, lasting access
Pro is bought once: there is no subscription and nothing renews. It gives the account that bought it access to Pro for as long as SQL Dojo is run.
What Pro covers is the course content: the belts and their steps, the exams, the interview runs and the datasets, as described on the Pro page, including the content added later. Services that may be offered later and cost us something each time they are used (for example AI-based help such as an explanation of an error or a review of a query), and plans for teams, are not part of Pro: if they come, they will be offered separately, and buying them stays optional.
If SQL Dojo ever had to close, we would say so at least 3 months before, and you could still export your progress.
6. Refunds and right of withdrawal
Refund guarantee: if Pro does not suit you, write to hello@sqldojo.dev within 14 days of your purchase and we refund it in full, without having to give a reason.
If you live in the European Union, you have a legal right to withdraw from a distance contract within 14 days. As Pro starts at once at your request, the refund guarantee above covers that period in full. After a refund, the account goes back to the free part; its progress is kept.
7. Use of the site
Do not try to harm the site or its users: attacks, automated mass downloading of the content, getting around the limits of the free part or of Pro, reselling access, or using the feedback forms for abuse. We may suspend an account that does, after asking it to stop when that is possible.
8. Content and intellectual property
The exercises, texts, datasets, design and code of SQL Dojo are ours or licensed to us; you may use them to learn, not copy or republish them. The queries you write are yours. Feedback you send may be used to improve the site.
9. Availability and liability
We do our best to keep the site available and correct, but it may be interrupted for maintenance or by incidents, and an exercise may contain an error (tell us: we fix them). SQL Dojo is a learning tool: it gives no warranty that what you learn suits a particular use. Our liability is limited to the amount you paid for Pro, except where the law does not allow such a limit (in particular towards consumers, for gross negligence or for personal injury).
10. Changes to these terms
We may change these terms; the version in force is on this page, with its date. A change that matters is announced on the site and by email to account holders at least 30 days before it applies to them.
11. Law and disputes
These terms are governed by French law. If you are a consumer, you also keep the protection given by the mandatory law of your country. Write to us first at hello@sqldojo.dev: most problems are solved this way. Otherwise the competent courts are those designated by law.