6+ years with SQL in production
39 ratings and 7.2k bookings across all services

For candidates preparing for Data Analyst and Data Engineer interviews. Instead of just giving answers, every question shows the wrong approach, why it fails, and the correct, production-safe solution.
What's inside:
✔️ Real-world scenario questions asked at companies like Amazon, Flipkart, TCS, and Infosys
✔️ Wrong vs correct approach for each question
✔️ Worked examples with sample input and output tables
✔️ Query optimization: indexing, execution plans, early filtering
✔️ Cheat sheet: WHERE vs HAVING, RANK vs DENSE_RANK, IN vs EXISTS, and more
✔️ How interviewers rephrase the same question in real rounds
By the end, you'll not only know the answers but be able to explain your reasoning clearly at a very affordable price of 149/- only