SQL GROUP BY Statement Explained with Examples

SQL TUTORIALS-

SQL GROUP BY Statement

Introduction-

✅ How to use the SQL GROUP BY statement with examples. Master grouping, aggregate functions (SUM, COUNT, AVG), and advanced GROUP BY techniques

✅In a Simple Word The GROUP BY statement in SQL is used to arrange (same) identical data into groups.used with (collection) aggregate functions like COUNT(), SUM(), AVG(), MAX(), or MIN() to perform (working) operations on each group....

✅ Syntax Example -

SELECT column_name, AGGREGATE_FUNCTION(column_name)
FROM table_name
GROUP BY column_name;

🔸 Example -)Table: Employee

✅ Example 1:-Total Salary by Department Wise-

SELECT Department, SUM(Salary) AS TotalSalary
FROM Employee
GROUP BY Department;

✅Result Show :-

Result →

✅ Example 2: Average Salary by Department Wise-

SELECT Department, AVG(Salary) AS AverageSalary
FROM Employee
GROUP BY Department;

✅Result Show :-

Result →

✅ Example 3: Count of Employees in Each Department Wise-

SELECT Department, COUNT(*) AS EmployeeCount
FROM Employee
GROUP BY Department;

✅Result Show :-

Result →

✅ Example 4:Minimum Salary by Department Wise-

SELECT Department, MIN(Salary) AS MinSalary
FROM Employee
GROUP BY Department;

✅Result Show :-

Result →

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