Topic 12 – The GROUP BY Clause

In this lesson, we'll explore the syntax and structure of T-SQL queries, focusing specifically on the powerful GROUP BY clause.

The GROUP BY clause is an essential tool in T-SQL that allows you to group rows of data based on shared values in one or more columns. In this lesson, we'll explore using the GROUP BY clause effectively to aggregate data and perform calculations across grouped rows.

You'll learn how to construct T-SQL queries that leverage the GROUP BY clause to generate summary information for distinct groups within your dataset, such as calculating counts, sums, averages, and other aggregate functions.

Through clear explanations and practical examples, you'll understand how to structure GROUP BY queries to efficiently organize and analyze your data.

By the end of this lesson, you'll be equipped with the knowledge and skills to write T-SQL queries that effectively utilize the GROUP BY clause. This will enable you to extract valuable insights and make informed decisions from your database. Get ready to enhance your T-SQL querying expertise and unlock new possibilities in data analysis!