Terms of Service
Last updated: October 6, 2026
SQLPrep is operated by Appvolt (앱볼트). By using the site you agree to these terms.
The service
SQLPrep provides SQL practice problems, an in-browser SQL runner, hints and solutions free of charge. We may change, add or remove problems and features at any time.
Your account
Keep your password secure and use one account per person. We may suspend accounts used for abuse, scraping or automated access.
Content
The problems, datasets, explanations and solutions are our original work. You may use them for your own interview preparation but may not republish or resell them.
No warranty
The service is provided as is. Practising here does not guarantee any interview outcome. To the extent permitted by law, we are not liable for indirect or consequential losses.