fixed bin(31) type has been optimized to run faster than int especially when used in loops. For this reason, fixed
bin(31) should be preferred to int.
Noncompliant code example
dcl i int(2) init (0);
do i = 1 to 20 by 1;
...
end;
Compliant solution
dcl i fixed bin(31) init (0);
do i = 1 to 20 by 1;
...
end;
