The DOWNCASE() function returns a string with all letters converted to lower case.
The DOWNCASE() function returns the value of string with all letters converted to lower case. If string is a variable rather than an expression, the value of the variable is not affected.
On an ECS mode system, the lowercase 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.
REF.NO = "A12F635"
This program fragment prints the string "a12f635".