In a DATA step, if the
LOWCASE function returns a value to a variable that has not previously
been assigned a length, then that variable is given the length of
the argument.
The LOWCASE function
copies the character argument, converts all uppercase letters to lowercase
letters, and returns the altered value as a result.
The results of the LOWCASE
function depend directly on the translation table that is in effect
(see
TRANTAB= System Option in SAS National Language Support (NLS): Reference Guide) and indirectly on the
ENCODING and the
LOCALE system options.