Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - Types of Macro Variables

The video tutorial explains the use of macro variables in SAS, focusing on both automatic and user-defined types. Automatic macro variables are used for inserting session details like time and date into reports. The tutorial demonstrates how to create user-defined macro variables using the %let statement, allowing for easy updates across large code sets by changing variable values.

Describe the process of invoking a macro variable in a title statement.

How can you change the value of a macro variable and what effect does it have on the code?