Terms of use

Using ChaturIQ

ChaturIQ is a free platform for learning SQL and practising interview questions. You may use it for your own learning and interview preparation.

Please don't misuse it: no automated scraping, no attempts to access other people's accounts or data, and no abuse of other learners in feedback or usernames. We may suspend accounts that do.

Who owns the content

The lessons, practice questions, explanations, quick checks, mock tests and the practice datasets are original work created for ChaturIQ by Mohit Khandelwal. They are protected by copyright.

You may not copy, republish, sell or redistribute them, in whole or in large part, on other websites, apps, courses, books or social media without written permission. Sharing a link to ChaturIQ, or quoting a single question to discuss it, is welcome.

One exception: the online_retail practice table is a sample of the UCI Online Retail dataset (Daqing Chen, 2015, UCI Machine Learning Repository), used under the CC BY 4.0 licence with credit. That dataset belongs to its authors.

SQL itself, and well-known interview topics such as 'the second-highest salary', are common knowledge that nobody owns. What we own is our wording, data, solutions, explanations and the way the course is put together.

If you believe anything on ChaturIQ uses your work without permission, message the founder on LinkedIn with the details. We will review it promptly and remove or rewrite it if the concern is valid.

Your account and data

We store your email address, your username, your progress, XP and streaks, and any feedback you send, so the course can save your progress and so we can improve it. We don't sell or share this data.

We also record which pages of the course you open and when (kept for 90 days), so we can see which lessons help and where learners get stuck. Only the ChaturIQ admin can see this.

When you join we ask a few profile questions (where you are in your career, your target role, your SQL level, and optionally your college or company and city). Only you and the ChaturIQ admin can see your answers; we use them to improve the course and to understand who it helps. If you join through a friend's invite link, we note who invited you.

Your username (never your email) is shown on the leaderboard. You can change it on the My profile page, or hide yourself from the leaderboard.

To delete your account and data, message the founder on LinkedIn.

No guarantees

We work hard to make every question correct and every explanation accurate, but ChaturIQ is provided as it is, without guarantees. Practising here should make you better prepared; it can't guarantee the result of any interview.

Changes

We may update these terms as the product grows. The date below shows the latest version.