6 %let a=begin;
7 %let b=%nrstr(&a);
8
9%put UPCASE produces: %upcase(&b);
UPCASE produces: begin
10 %put QUPCASE produces: %qupcase(&b);
QUPCASE produces: &A
put UPCASE produces: %upcase(&b);
Why is the outcome not the following
UPCASE produces: BEGIN
Thanks!
