# Exercise: Aggregating Data

Exercise: Aggregating Data: Exercise: Aggregating Data.

Updated: November 3, 2026

1. [Exercise: Aggregating Data](https://www.ask-codey.com/lessons/exercise-aggregating-data) (Journeyman): Twelve questions about Northwind, answered with COUNT, SUM, AVG, MIN, MAX, GROUP BY and HAVING, each with the result to expect.

Source: https://www.ask-codey.com/courses/csharp-full-stack-bootcamp/topics/exercise-aggregating-data