SQL Masterclass(Lets go from 0 to 1) 1:1 with rahul gupta

Stop memorizing SQL. Start thinking like a detective.

Know SQL basics but struggle to write queries from scratch? This course will teach you how to break business questions into smaller steps and build queries logically—without depending on memorized syntax.

What you'll learn

🔍 SQL Detective Thinking

How to approach any SQL problem, even when you've never seen that type of query before.

🧩 Joins Without Confusion

Understand how tables connect and how to choose the right join instead of blindly trying INNER JOIN or LEFT JOIN.

📊 GROUP BY, Aggregations & HAVING

Find the answers hidden in your data—total revenue, average order value, repeat customers, and more.

🪆 Subqueries & CTEs

Break complex problems into smaller, manageable steps and build queries that are easy to understand.

🏆 Window Functions

Solve real-world problems like ranking customers, finding the top 3 products, calculating running totals, and comparing each row with the previous one.

📅 Dates, Cohorts & Retention

Analyze user behavior, monthly performance, repeat purchases, and retention without getting lost in date logic.

🧠 CASE WHEN & Conditional Logic

Turn business rules into SQL and answer questions like: "Who are our high-value customers?"

🚀 Advanced SQL Problem Solving

Learn how to tackle interview-level and real-world analytics problems using a structured approach.

Who is this for?

• SQL beginners building a strong foundation.
• Analysts who know SQL but struggle with complex queries.
• Data science & product analytics aspirants preparing for interviews.
• Working professionals who want to solve problems independently.

By the end, you’ll know how to approach a business question, choose the right SQL concepts, and build the query yourself.

Stop memorizing queries. Start solving them.