UPCASE Function
Converts all lower-case letters to upper-case. Characters that are not lower-case letters remain unchanged.
Note
The UPCASE function effectively supersedes the use of OCONV(expression, 'MCU') as it is simpler and faster.
Syntax
UPCASE(expression)
Syntax elements
expression any expression that evaluates to a string.
Example
X = 'Abc'
PRINT UPCASE(X)
Prints "ABC".