The UPCASE() function returns a string with all letters converted to upper case.
The UPCASE() function returns the value of string with all letters converted to upper case. If string is a variable rather than an expression, the value of the variable is not affected.
On an ECS mode system, the uppercase equivalent of each character is defined by the currently selected character map. On other systems, the standard letter pairings of the ASCII character set are used.
NAME = "Thomas Smith"
This program fragment prints the string "THOMAS SMITH".