In my daily use of SQL queries, aggregate functions are used to perform calculations on a set of values, returning a single value. Common examples include SUM, AVG, COUNT, MIN, and MAX.

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This guide provides an overview of how to use GROUP BY and aggregate functions in SQL. We will also cover how to filter grouped data using the HAVING clause. Examples of SQL queries will be provided ...

Learn what aggregate functions are, how to use them in SQL queries, and why they are useful for BI. Find examples of common scenarios and calculations. Agree & Join LinkedIn ...