GROUP BY with HAVING in SQL | Practical Examples & Interview Questions | WHERE vs HAVING Explained
Welcome to Lecture 6 of the SQL Interview Preparation Series!
In this video, we explore one of the most tricky yet most important topics in SQL —
👉 GROUP BY with HAVING clause and the difference between WHERE and HAVING.
This topic is frequently asked in SQL interviews, especially in product-based companies, tech assessments, and backend developer roles.
📌 What You’ll Learn in This 13-Minute Video:
What is GROUP BY with HAVING clause in SQL
How HAVING filters data after grouping
Why WHERE is used before aggregation, and HAVING after
Difference between WHERE and HAVING explained with clear examples
GROUP BY with COUNT(), SUM(), AVG(), MAX(), MIN()
Practical examples + most asked interview questions
💡 This video is beginner-friendly and also perfect for advanced SQL learners preparing for technical interviews.
📌 Don’t forget to LIKE, SHARE, and SUBSCRIBE for upcoming videos in the series!
🔗 Watch full SQL series here:
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🔗Complete OOPS for Placement and Interview in one video -
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💬 Got doubts or confusion? Drop your questions in the comments — I personally reply to every one!
Video Chapters (Timestamps):
00:00 - Introduction
00:40 - What is GROUP BY with HAVING Clause
02:30 - GROUP BY with COUNT(), SUM(), AVG()
05:20 - When to Use WHERE vs HAVING
07:40 - Practical Examples of HAVING Clause
10:00 - Most Asked Interview Questions on GROUP BY + HAVING
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