SQL interview questions with business scenarios for 2025!

Overview

This course is designed for both freshers and experienced professionals preparing for SQL job interviews. It focuses on practical, real-world SQL interview questions that reflect what companies are actually asking today.

Whether you're applying for roles in data analytics, data engineering, full-stack development, or software testing, this course will help you build the confidence and skills you need to succeed.

Syllabus

• Introduction to SQL Interviews
Overview of SQL in the Job Market
Essential SQL Skills for Interviews
Understanding Business Scenarios in SQL
• Basic SQL Queries
SELECT, FROM, WHERE Clauses
Sorting and Filtering Data with ORDER BY and LIMIT
Understanding and Using Aliases
• Advanced Query Techniques
JOIN Operations: INNER, OUTER, LEFT, RIGHT
Subqueries and Nested Queries
Common Table Expressions (CTEs)
• Aggregations and Grouping
Using Aggregate Functions: SUM, COUNT, AVG, MAX, MIN
GROUP BY and HAVING Clauses
Window Functions and Over Clauses
• Data Manipulation and Transactions
INSERT, UPDATE, DELETE Commands
Understanding TRANSACTIONS and ACID Properties
Use of COMMIT and ROLLBACK
• SQL in Real-World Business Scenarios
Case Study: Retail Sales Analysis
Case Study: Customer Segmentation
Case Study: Inventory Management
• Performance Tuning and Optimization
Indexing Strategies
Analyzing Query Performance
Best Practices for Writing Efficient SQL
• Advanced Topics in SQL
Stored Procedures and Functions
Triggers and Events
Introduction to NoSQL vs SQL Debate
• Mock Interview Sessions
Common SQL Interview Questions
Solving Business Scenarios in Interview Settings
Feedback and Improvement Strategies
• Final Assessment and Resources
SQL Skill Assessment
Recommended Reading and Practice Resources
Preparing for Technical Interviews
• Conclusion
Recap of Key Learnings
Strategies for Continuous Improvement in SQL Skills

---

Taught by

Compylo • 4.8k+ Students Globally!, S K and Dr K

---

Subjects

Programming