SQL Interview Prep
Master SQL for
technical interviews.
Type a query. Hit run. Find out right now if you got it right. No setup, no fluff — just the practice that actually prepares you.
Built for how SQL interviews actually work
No flashcards. No multiple choice. Just problems, a real editor, and honest feedback.
Handcrafted problems
Every problem mirrors the kind of question that shows up at places like Amazon, Google, and Meta. Joins, aggregations, window functions — the stuff interviewers actually ask.
In-browser SQL editor
Open a problem and start typing. Your SQL runs against a real schema, right in the browser. Nothing to install, configure, or sign up for.
Progress tracking
See your streak, your heatmap, and your difficulty breakdown in one place. Know exactly where you stand — and exactly what to work on next.
Hints & solutions
When you're stuck, you don't have to just stare at it. Reveal hints one at a time, or jump to a full walkthrough when you're ready to move on.
Instant feedback
Your query runs against a real schema and gets checked against multiple test cases. Pass or fail, you'll know in seconds — no ambiguity.
Free to start
Jump in without an account. Create one to save your progress. Unlock the full problem set — including advanced window functions and CTEs — with Pro.
Pick a problem. Any problem.
No account needed to jump in. Create one to track progress, or go Pro to unlock the full problem set.