SQL ZERO TO HERO HANDWRITTEN NOTES

Want to master SQL from scratch?
These handwritten notes cover everything — from basics ➝ advanced queries.
Why this matters:
👉 SQL is the must-have skill for analysts, data scientists, engineers, and job seekers.
👉 With interviews recycling the same 20–30 questions, these notes will help you learn smarter,
not harder.
✅ Perfect for revision before interviews
✅ Beginner-friendly + structured
✅ Covers SELECT, JOINS, subqueries, indexing & more