Definitions for "Aggregate function"
Keywords:  avg, max, row, query, count
A function that generates a single value from a group of values, often used with GROUP BY and HAVING clauses. Aggregate functions include AVG, COUNT, MAX, MIN, and SUM. Also known as set functions. See also scalar function.
Synonym for column function.
One of a group of database functions that calculates summary information on a group of rows.