Every SQL tutorial starts the same way: "First, install Postgres."
That's exactly where most people quit.
Today I'm launching Data Learn — and I built it to delete that first step entirely.
It's LeetCode, but for SQL. You open a problem, write a query, hit run, and it executes right there in your browser. No database to install. No Docker. No sample data to download. Nothing to configure. You're writing real SQL against real data in about three seconds.
A few things I'm proud of:
→ It runs real query engines in your browser
→ Every submission is checked against the expected output and saved to your history so you can watch yourself getting better.
→ I just shipped Contests: race the clock on a set of problems, or create your own and share the link with your team or study group.
→ And there's a Learn section with written lessons, so you're not grinding problems blind.
It's live, it's free, and this is the first time I'm sharing it publicly.
If you've been meaning to get sharper at SQL — for interviews, for analytics work, or just because — I'd genuinely love for you to try it and tell me what's missing.
👉 Link :
learndatanow.com/
What's the one SQL concept you wish you'd learned sooner? 👇
#SQL #DataAnalytics #DataEngineering #LearnToCode #BuildInPublic