SUM() Function

It is used to calculate total sum of numeric column.

EmployeeID	EmployeeName	EmployeeMobNo	EmployeeSalary
1	Mayank Dixit	9532771738	20000
2	Mona Dixit	9005408263	15000
3	Purnima	9485754875	26522
4	Payal	9785458545	19856

                                                       employee

In the above table (employee), we want to calculate total sum of salary of employee (EmployeeSalary).

Syntax

SELECT SUM(Column_Name) AS Alias_Column_Name

FROM Table_Name;

Example

SELECT SUM(EmployeeSalary) AS Total_Salary_OF_Employee

FROM Employee;

Here Total_Salary_OF_Employee is a subname (alias) of column.

Output:-

Total_Salary_OF_Employee

81378