Free SQL Course with Certificate (India)

Learn SQL free with a live in-browser query playground — SELECT to window functions, every interview pattern. Free certificate. No install, works on mobile.

What you'll learn

A free, hands-on SQL course for Indian students and job-seekers, where you write and run real queries right in your browser (SQLite, no install). Go from SELECT, WHERE and GROUP BY to JOINs, subqueries, CTEs and window functions, with every classic interview question covered: second-highest salary, find duplicates, top-N per group, WHERE vs HAVING, INNER vs LEFT JOIN. Indian datasets, predict-the-output practice, and an InterviewLog you build into a revision sheet. Free completion certificate.

Why Techwave Academy

• All 17 courses are free on signup — no credit card, no trial, no upgrade pop-ups.
• In-browser IDE — write and run code without installing anything.
• AI mentor — 24×7 doubt clearing in plain language.
• India-first — Hindi/Hinglish narration where useful, CBSE alignment for school courses.
• Built by working software engineers — not theoreticians.

What you get on signup (₹0)

A single phone-number signup unlocks every course on the platform: AI Beginner, Python for Class 4 / 6 / 8 / 10 / 12 (CBSE 083), Git Basics, Linux Basics, Spoken English, IOI / Olympiad Prep, Foundation Bootcamp, Blind 75, NeetCode 150, Claude Mastery, and Tableau & Power BI & SQL for Data Analysts. Yes, all 17 — forever free.

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