Master SQL GROUP BY & HAVING Clause with Aggregate Functions | Step-by-Step Guide
Welcome to our comprehensive SQL tutorial on the GROUP BY clause, Aggregate Functions, and the HAVING clause! 🎓 Whether you're a beginner or looking to sharpen your SQL skills, this video will teach you how to group data, perform calculations like SUM(), COUNT(), AVG(), and filter grouped results using the HAVING clause.
In this tutorial, we cover:
What is the GROUP BY clause in SQL?
How to use Aggregate Functions (SUM(), COUNT(), AVG(), etc.)
The difference between WHERE and HAVING
Real-world examples of grouping and aggregating data.
By the end of this video, you'll be able to write more complex SQL queries using GROUP BY and HAVING clauses for better data analysis. 💻
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create table statement
CREATE TABLE SALARY (
EmpID INT PRIMARY KEY,
EmpName VARCHAR(50),
Department VARCHAR(50),
Salary INT,
Hike INT
);
INSERT INTO Salary (EmpID, EmpName, Department, Salary, Hike)
VALUES
(1, 'Alice', 'HR', 50000, 2000),
(2, 'Bob', 'IT', 60000, 3500),
(3, 'Charlie', 'Finance', 55000, 4000),
(4, 'David', 'IT', 62000, 1000),
(5, 'Eve', 'HR', 48000, 3200),
(6, 'Frank', 'Finance', 53000, 2500),
(7, 'Grace', 'IT', 59000, 5000),
(8, 'Heidi', 'HR', 51000, 7000);