What is the SUM function in SQL?
The SQL Server SUM() function is an aggregate function that calculates the sum of all values or individual values in an expression. The syntax of the SUM() function is as follows: SUM (expression [ALL | DISTINCT])
Where do we use the SUM function in SQL?
The SQL SUM function is used to return the sum of an expression in a SELECT statement.
How do you sum in SQL Server?
SELECT Department, SUM(Quantity) AS Total FROM Products WHERE Quantity> 10 GROUP BY Department Since the SELECT statement specifies a column that is not included in the SUM function, the GROUP BY clause must be used. Therefore, the department field must appear in the GROUP BY section.
How is the SUM function used in a query?
The SUM aggregate function is ideal for calculating the sum of the values in a column. This function is used in the SELECT statement and takes the name of the column whose values you want to sum. If you don’t specify a different column in the SELECT statement, the sum will be calculated for all records in the table.
How to summarize the request?
Single expression example
SELECT SUM(salary) AS Total Salary FROM Employees WHERE Salary > 25000 In this SQL SUM function example, we have renamed the SUM(salary) expression to Total Salary. Therefore, Total Salary is displayed as a field name when the result set is returned.
How to use sum function in update query?
Single expression example
SELECT SUM(salary) AS Total Salary FROM Employees WHERE Salary > 25000 In this SQL SUM function example, we have renamed the SUM(salary) expression to Total Salary. Therefore, Total Salary is displayed as a field name when the result set is returned.