🗄️ SQL Queries Interview Questions 💻🔥 Preparing for a **SQL interview**? Here are **must-know query-based questions + concepts** 🚀 🔹 🔹 Basic Queries ✔️ Select all data ```sql SELECT * FROM table_name; ``` ✔️ Filter data ```sql SELECT * FROM table_name WHERE condition; ``` 🔹 🔹 Aggregations 📊 Count records ```sql SELECT COUNT(*) FROM table_name; ``` 📈 Group data ```sql SELECT column, COUNT(*) FROM table_name GROUP BY column; ``` 🔹 🔹 Joins (Very Important) 🔗 INNER JOIN ```sql SELECT * FROM A INNER JOIN B ON A.id = B.id; ``` 🔗 LEFT JOIN ```sql SELECT * FROM A LEFT JOIN B ON A.id = B.id; ``` 🔹 🔹 Intermediate Questions 📊 Find duplicates ```sql SELECT column, COUNT(*) FROM table_name GROUP BY column HAVING COUNT(*) > 1; ``` 📈 Second highest salary ```sql SELECT MAX(salary) FROM table_name WHERE salary < (SELECT MAX(salary) FROM table_name); ``` 🔹 🔹 Advanced Queries 🧠 Window function ```sql SELECT name, RANK() OVER (ORDER BY salary DESC) FROM table_name; ``` 🔹 🔹 Scenario-Based 🧠 Get top 5 records ```sql SELECT * FROM table_name ORDER BY column DESC LIMIT 5; ``` 💬 Comment “SQL” and I’ll share the PDF with you. #SQL #Database #InterviewPrep #DataScience #TechSkills