SQL Tutorial: Master GROUP BY, WHERE vs HAVING, Aggregate Functions & Query Execution Order

Learn SQL step by step with clear examples! In this video, we cover: ✅ SQL Query Execution Order (FROM → JOIN → WHERE → GROUP BY → HAVING → SELECT → ORDER BY) ✅ Difference between WHERE and HAVING in SQL ✅ How Aggregate Functions (SUM, COUNT, AVG, MAX, MIN) work with GROUP BY ✅ Why aggregate functions can’t be used in WHERE clause ✅ Practical SQL example with GROUP BY, HAVING, WHERE, ORDER BY all together This SQL tutorial is perfect for beginners and interview preparation. By the end, you’ll clearly understand how SQL queries are executed step by step and how to use GROUP BY with aggregate functions effectively. 📖 Topics Covered: SQL GROUP BY explained with examples WHERE vs HAVING clause Aggregate Functions in SQL SQL query execution flow Complete SQL example combining all concepts #SQL #Database #SQLTutorial #GROUPBY #HAVING #WHERE #SQLInterview