SQL SUM Function
The SUM function returns the total sum of a column in a given selection. NULL values are not included in the
calculation.
Syntax
SELECT SUM(column) FROM table
|
Example
This example returns the sum of all ages in the "person" table:
SELECT SUM(Age) FROM Persons |
Result:
Example
This example returns the sum of ages for persons that are more
than 20 years old:
SELECT SUM(Age) FROM Persons WHERE Age>20 |
Result:
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