Web Reference: Oct 15, 2024 · Solve these 19 SQL aggregate function exercises and sharpen your SQL skills! Practice using aggregate functions with GROUP BY, HAVING, subqueries, and more. Includes a solution and detailed explanation for each exercise. Aggregate functions are an important part of SQL. Jan 5, 2026 · There are different types of SQL functions - Aggregate functions and Scalar functions. Aggregate functions perform calculations on a group of values and return a single value. SQL Aggregate Functions An aggregate function is a function that performs a calculation on a set of values, and returns a single value. Aggregate functions are often used with the GROUP BY clause of the SELECT statement.
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