Converts all alphabetic characters in a string to uppercase, and returns the resulting string.
UCase[$] ( expr )
expr
For UCase, any numeric or string expression. For UCase$, any Variant or string expression.
UCase returns a Variant of DataType 8 (String). UCase$ returns a String.
UCase(NULL) returns NULL. UCase$(NULL) returns an error.
The function has no effect on non-alphabetic characters.