Learn SQL through 100+ challenges designed for interviews, practice, and career growth
Can you write SQL queries, but freeze when the interviewer throws a real scenario at you?
You’re not alone. Many people know the syntax — but struggle to solve problems that look messy, business-driven, and open-ended.
What you’ll learn
- Solve 100+ SQL interview-style challenges across easy, medium, and hard levels..
- Master essential SQL techniques: joins, aggregations, window functions, CTEs, and pivots..
- Apply step-by-step reasoning patterns to break down complex SQL problems..
- Build confidence to analyze, debug, and structure queries like a professional..
- Develop interview-ready thinking strategies for practical database scenarios..
Course Content
- Introduction –> 3 lectures • 8min.
- Warm‑Up Challenges –> 17 lectures • 56min.
- Basic Filtering & Aggregations –> 24 lectures • 1hr 24min.
- Joins & Anti‑Joins –> 12 lectures • 1hr 2min.
- Window Functions –> 22 lectures • 1hr 10min.
- Date & Time‑Based Reporting –> 14 lectures • 37min.
- Subqueries & CTEs –> 21 lectures • 1hr 23min.
- Advanced Aggregations –> 22 lectures • 1hr 16min.
- Recursive CTEs & Hierarchies –> 9 lectures • 42min.
- Set Operations (UNION) –> 11 lectures • 45min.
- Pivot & Unpivot –> 6 lectures • 21min.
- String & Regex Operations –> 13 lectures • 28min.
- Open Problems –> 2 lectures • 2min.
- Thank You !! –> 1 lecture • 1min.
Requirements
Can you write SQL queries, but freeze when the interviewer throws a real scenario at you?
You’re not alone. Many people know the syntax — but struggle to solve problems that look messy, business-driven, and open-ended.
That’s exactly why I built this course: your SQL Interview Kit (2025).
Inside, you’ll practice 100+ real challenges, inspired by actual company interviews and day-to-day tasks faced by analysts and engineers.
What Makes This Course Different
This isn’t a theory dump. It’s hands-on problem solving.
Every challenge puts you in the shoes of an analyst solving for a product, a business team, or a client.
Here’s what you’ll tackle:
- E-commerce & product funnels → find drop-offs, repeat buyers, cart abandoners.
- Banking & finance → detect risky trades, track customer tenure, calculate percentiles.
- Healthcare & fitness → retention metrics, patient gaps, appointment delays.
- Media & OTT apps → session streaks, genre trends, cross-platform users.
- Operations & logistics → shipping delays, courier performance, returns.
Along the way, you’ll also learn to spot patterns:
- When to use joins vs anti-joins
- How to choose between window functions vs GROUP BY
- How to debug issues with NULLs, duplicates, and overlaps
- How to explain your query clearly under interview pressure
How You’ll Learn
- Every problem comes with a structured hint and a clean solution.
- Many challenges also include video walkthroughs — where I guide you through the thought process step by step.
- Sections are organized like an interview itself: starting simple, building up to complex case studies.
Who This Course Is For
Whether you’re:
- Preparing for your first SQL interview,
- Switching careers into data, or
- Already working and want to sharpen your problem-solving muscle —
This course is designed to make you truly job-ready in SQL.
No filler. No copy-paste answers. Just structured practice with real scenarios — so you walk into any interview with clarity and confidence.