# Exercise: Modifying Data

Exercise: Modifying Data: Exercise: Modifying Data.

Updated: November 3, 2026

1. [Exercise: Modifying Data](https://www.ask-codey.com/lessons/exercise-modifying-data) (Apprentice): Add a category, products, yourself and a customer's order to Northwind, then update and delete them, with scripts that use variables and transactions.

Source: https://www.ask-codey.com/courses/csharp-full-stack-bootcamp/topics/exercise-modifying-data-in-t-sql