LeetCode Hard Problem | SQL Data Analyst Interview Question | EP-20 | #leetcode #sqlinterview #sql

🚀 Identify Consecutive Records with SQL Using Window Functions!
In this video, I break down an Hard LeetCode Problem SQL query designed to solve a key data analysis problem:

👉 How to display records with 3 or more consecutive IDs where the number of people is greater than or equal to 100.

🔍 You'll learn:
✅ How to implement window functions like ROW_NUMBER() to assign row numbers dynamically.
✅ How to calculate and group differences between IDs to find consecutive patterns.
✅ Step-by-step explanation of using WITH CTE and HAVING to filter the results effectively.

Whether you're preparing for SQL interviews or sharpening your SQL problem-solving skills, this tutorial will enhance your understanding of window functions, grouping logic, and common table expressions (CTEs).

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Most Asked SQL Data Analyst Interview Question Playlist:- https://www.youtube.com/playlist?list=PLPvrzIek-mcw4Cu6VY5P6zGvFhOVgIrUm

Data Cleaning using SQL:- https://youtu.be/tvCTy-8YUFY

Data Analyst Project using MS Excel:- https://youtu.be/i7t-3GRK5wk

Python Project for Data Analysis - Exploratory Data Analysis EDA:- https://youtu.be/1tYrE1z5LlI

📌Script:-
CREATE TABLE stadium (
id INT PRIMARY KEY,
visit_date DATE,
people INT
);

INSERT INTO stadium (id, visit_date, people) VALUES
(1, '2025-03-01', 10),
(2, '2025-03-02', 109),
(3, '2025-03-03', 150),
(4, '2025-03-04', 99),
(5, '2025-03-05', 145),
(6, '2025-03-06', 1455),
(7, '2025-03-07', 199),
(8, '2025-03-08', 188),
(9, '2025-03-09', 88),
(10, '2025-03-10', 77),
(11, '2025-03-11', 56),
(12, '2025-03-12', 112),
(13, '2025-03-13', 134),
(14, '2025-03-14', 199),
(15, '2025-03-15', 67),
(16, '2025-03-16', 78),
(17, '2025-03-17', 95),
(18, '2025-03-18', 120),
(19, '2025-03-19', 135),
(20, '2025-03-20', 99);

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Видео LeetCode Hard Problem | SQL Data Analyst Interview Question | EP-20 | #leetcode #sqlinterview #sql канала ANKIT RAJ MISHRA