The Free SQL Roadmap That Can Get You to $100K
Most people overcomplicate learning SQL.
They buy courses. They subscribe to platforms. They bookmark 47 tutorials and watch none of them.
Here’s the truth: you don’t need any of that. You need four resources, used in the right order, and about 30 days of consistent practice.
Step 1 — Watch
Start with my free Crash Course SQL series on YouTube. 24 hands-on videos. Built for people who want to actually use SQL, not just understand it theoretically. No fluff. No slides. Just real queries on real data.
Step 2 — Learn
Once you’ve got the basics, go to SQLZoo. It’s interactive, browser-based, and forces you to write queries from day one. This is where concepts start to stick.
Step 3 — Practice
HackerRank’s SQL track has structured challenges across beginner, intermediate, and advanced levels. Work through them in order. Don’t skip ahead.
Step 4 — Get Interview-Ready
DataLemur is built specifically for data and analytics SQL interviews. LeetCode covers the broader software engineering interview circuit. Do both. They overlap just enough to be useful.
That’s it. Four resources. One direction.
The average SQL developer earns $100K/year. The barrier isn’t talent — it’s knowing where to start.
Now you do.
— Sujay
If this was useful, share it with someone who’s been putting off learning SQL. It might be the nudge they need.