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7.1.46 UPPER-CASE
The UPPER-CASE function returns a character string that is the same length as the argument specified, with each lowercase letter replaced by the corresponding uppercase letter.
The function type is alphanumeric. 



    ___ Format _____________________________________________________________ 
   |                                                                        |
   | >>__FUNCTION UPPER-CASE__(argument-1)_______________________________>< |
   |                                                                        |
   |________________________________________________________________________|
argument-1
Must be class alphabetic or alphanumeric and must be at least one character in length.
The same character string as argument-1 is returned, except that each lowercase letter is replaced by the corresponding uppercase letter.
The character string returned has the same length as argument-1.

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