SQL SUM Function | SQL Aggregate Function | SQL Tutorial for Beginners
The SQL SUM function is an aggregate function that returns the sum of all or distinct values. We can apply the SUM function to the numeric column only.
SQL allows us to do more than select values or expressions from tables. Most operations on relational databases use aggregate functions like SUM() to do computations on data.
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What is COUNT Function in SQL?
What is COUNT Aggregate Functions?
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