Why RANK ≠ DENSE_RANK in SQL (Easy Visual Explanation)

Confused between ROW_NUMBER(), RANK(), and DENSE_RANK() in SQL?

Most beginners think these window functions work the same…
until duplicate values appear.

In this video, I explain visually:
✅ ROW_NUMBER()
✅ RANK()
✅ DENSE_RANK()
✅ Gap vs No Gap concept
✅ Real-world SQL interview use cases
✅ Production-ready SQL thinking

We’ll understand:
- how ties affect ranking,
- why RANK() skips values,
- why DENSE_RANK() doesn’t skip,
- and when engineers actually use these functions in real projects.

⏱️ Timestamp
00:00 Why RANK vs DENSE_RANK matters
00:19 Understanding the sales table
00:33 ROW_NUMBER() explained
01:03 RANK() explained
01:29 DENSE_RANK() explained
01:52 SQL query demonstration
02:19 Comparing all three functions
02:53 Real-world use cases

This video is perfect for:
- SQL beginners
- Data Analysts
- Data Engineering preparation
- SQL interview preparation
- Anyone confused by window functions

📌 Topics Covered:
- SQL Window Functions
- ROW_NUMBER()
- RANK()
- DENSE_RANK()
- SQL Interview Questions
- SQL Ranking Functions
- SQL for Beginners
- Data Engineering SQL

If this video helped you understand SQL better, subscribe for more practical SQL and Data Engineering content ❤️

Channel:
[Soumya Simplifies](https://www.youtube.com/@soumyasimplifies)
#SQL #SQLTutorial #SQLInterviewQuestions #DataEngineering #LearnSQL #Database #CodingInterview #SoftwareEngineering#SQLJoins#Tech

Видео Why RANK ≠ DENSE_RANK in SQL (Easy Visual Explanation) канала Soumya Simplifies