Master SQL for Data Analysis - Grouping Rows (GROUP BY and HAVING)

The video tutorial covers the use of the GROUP BY statement in SQL to group rows based on column values and perform actions like filtering and calculations. It explains the syntax and usage of GROUP BY with examples, including working with the Credits table to count distinct actors. The tutorial also discusses combining data from multiple tables using keys and advanced grouping techniques with multiple columns. Finally, it explains the order of SQL query execution, emphasizing the importance of understanding each stage.

What is the purpose of the GROUP BY statement in SQL?

What is the significance of using aggregate functions like COUNT, MAX, and SUM with GROUP BY?

Describe how to combine data from two different tables using SQL.

How can you group rows based on multiple columns in SQL?

What steps should be taken to filter out groups that do not meet certain conditions after aggregation?

Explain the difference between the WHERE clause and the HAVING clause in SQL.

Why is it important to understand the order of execution in SQL queries?