- UPCASE: returns the uppercase of the text
- LOWCASE: returns the lowercase of the text
- PROPCASE: returns the word having uppercase in the first letter and lowercase in the rest of the letter.
Example

In this dataset, the students names were entered with a random case in each letter.
DATA Student2;
Set Student;
Upcased = Upcase(Name);
Lowcased = Lowcase(Name);
Propcased = Propcase(Name);
RUN;

DONE! You have learned the UPCASE, LOWCASE and PROPCASE functions in SAS!