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Use an SQL function to calculate the sum of all the Price column values in the Products table.
In this article, you’ve learned how the SQL function SUM() works. You can use it to add all the values in one column across all rows in a table, to total the results of an expression that uses more than one column, and to sum up values for a group of rows.
We can use SQL Server system function SUM () to easily get the sum of the values stored in a numeric column of the table. The SQL SUM function is an aggregate function that is used to perform a calculation on a set of values from a specified expression and return a single value in their output.
Use the SUM() function to calculate the sum of values. Use the DISTINCT option to calculate the sum of distinct values. Use the ALL option to calculate the sum of all values including duplicates.
Microsoft supports the SUM function to help the SQL database developer write queries to solve these problems. Today, we will explore three main tasks: 1) perform summation on a single column, 2) create a running total, and 3) replace a complex pivot statement with aggregated sums.
SQL SUM () Function Explained. Discover the power of the SQL SUM () function for data aggregation. Learn how to implement rolling sums, cumulative sums, and sum multiple columns effectively. The SQL SUM() function is a useful aggregate function for calculating totals of numerical columns.
SUM is a deterministic function when used without the OVER and ORDER BY clauses. It's nondeterministic when specified with the OVER and ORDER BY clauses. For more information, see Deterministic and Nondeterministic Functions .
To calculate the sum of unique values, you use the DISTINCT operator e.g., the SUM (DISTINCT) of the set (1,2,3,3,NULL) is 6. SQL SUM function examples. We will use the employees table below for the demonstration purposes. To get the sum of salaries of all employees, we apply the SUM function to the salary column as the following query:
Solution: SELECT SUM(score) as sum_score. FROM game; Here’s the result: Discussion: The aggregate function SUM is ideal for computing the sum of a column’s values. This function is used in a SELECT statement and takes the name of the column whose values you want to sum.
SUM () is a SQL aggregate function that computes the sum of the given values. GROUP BY is a SQL clause that partitions rows into groups and computes a stated aggregate function for each group. Using these two functions together, you can compute total sums for a group of rows.