Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - Substr Function

The video tutorial explains the substring function, focusing on its syntax and arguments: source, position, and number of characters to read. It demonstrates how to extract specific data from a date variable using the substring function. The tutorial also covers the left side application of substring, showing how to modify parts of a string, such as changing a year in a date. The video aims to make the concept clear and easy to understand through examples.

What is the first argument in the substring function and what does it represent?

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Explain the significance of the 'position' argument in the substring function.

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How does the substring function determine how many characters to read?

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What changes were made to the date variable in the left side application example?

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Describe the left side application of the substring function and when it is typically used.

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