Not a tutorial. A training program. Built around the SQL questions employers actually ask.
23 SQL skills · 200+ exercises · AI feedback · Free to start
Breaking in, moving up, or starting out — same problem, different starting points.
You've been trying to break into data for months. You get past the resume screen. Then the SQL test hits and it's over.
You don't need more tutorials. You need to practice the way employers actually test.
LearnQL tells you exactly which skills to learn, in what order, and tests you the same way an interviewer will.
The gap between 'I know SQL' and 'I can prove it' closes in three steps.
Real exercises on purpose-built datasets. Music streaming. E-commerce. Football stats. Data that has a story.
Same skill, fresh dataset. No hints, no AI. If you can do it here, you can do it in the interview.
Pass and unlock the next skill. 23 topics. Each one tied to a job title you're trying to reach.
23 SQL skills across 6 topics. Each one unlocks a new tier of roles.
The core of every SQL query — selecting columns, filtering rows, sorting results, and handling missing data.
Summarizing data — counts, totals, averages — grouped by categories.
Transforming raw data — cleaning text, working with dates, and categorizing values into meaningful labels.
Combining data from multiple tables into a single result.
Writing queries that reference other queries, and performing calculations across rows without collapsing them.
Writing complex, maintainable queries — breaking logic into reusable steps, combining result sets, and solving advanced analytical problems.
Practice that actually prepares you for the interview.
Six datasets, each built for a specific skill. The data has a story — so the queries do too.
Wrong answers come with a reason, not just a red ✕. AI explains what went wrong and why — like a senior engineer in a code review.
SELECT department, COUNT(*) FROM employees WHERE COUNT(*) > 5 GROUP BY department;
SELECT department, COUNT(*) FROM employees GROUP BY department HAVING COUNT(*) > 5;
No subscriptions. No paywalls on the curriculum.
Free
Everything you need to learn SQL.
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