Master SQL for Data Analysis - Sequential Numbers

The video tutorial explains the use of the row_number window function in SQL to assign sequential numbers to rows within partitions, such as listing users by age in each city. It covers the syntax, steps to create results, and filtering techniques using inline views to extract specific rows based on their row number.

What is the purpose of the row_number window function?

How does the partition by section affect the result set?

Explain how the ORDER BY section works within the window function.

What happens to the row number when moving to the next city?

Describe how to retrieve the oldest user for each city using the row number.