Скачать или смотреть Don’t Confuse These! ROW_NUMBER, RANK & DENSE_RANK in SQL (Ultimate Comparison)

🚀 Learn the Difference Between ROW_NUMBER, RANK, and DENSE_RANK in SQL — Explained Simply!

SQL Script to create dataset for practice:

CREATE TABLE [dbo].[Student](
[RegNo] [nvarchar](255) NULL,
[Name] [nvarchar](255) NULL,
[Section] [nvarchar](255) NULL,
[Mathematics] [float] NULL,
[Physics] [float] NULL,
[Chemistry] [float] NULL
) ON [PRIMARY]

INSERT INTO [dbo].[Student] ([RegNo], [Name], [Section], [Mathematics], [Physics], [Chemistry])
VALUES (N'RE101', N'Manoj', N'Section1', 72, 87, 71),
(N'RE102', N'Sam', N'Section1', 61, 51, 57),
(N'RE103', N'Sameer', N'Section1', 68, 77, 53),
(N'RE104', N'Suman', N'Section1', 81, 64, 75),
(N'RE105', N'Raju', N'Section1', 82, 60, 70),
(N'RE106', N'Tom', N'Section1', 64, 67, 53),
(N'RE107', N'Vivek', N'Section1', 87, 81, 67),
(N'RE108', N'Harry', N'Section1', 73, 82, 73),
(N'RE109', N'Petter', N'Section1', 76, 57, 75),
(N'RE11

In this video, we break down one of the most confusing SQL concepts — the difference between ROW_NUMBER(), RANK(), and DENSE_RANK() — with clear examples.

You’ll learn:
✅ How each ranking function works
✅ When to use which function
✅ How duplicates and ties are handled
✅ Real-world examples and interview tips

Perfect for beginners, data analysts, and interview preparation!

📌 Topics Covered:

ROW_NUMBER explained

RANK explained

DENSE_RANK explained

Key differences

SQL interview question on ranking

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