Problem:
Running the following piece of code through OCDS and then Server Express will return different results on the COMPUTE statement:
FD
01 TOT-CALC PIC 9(02) VALUE ZEROES.
01 FILLER REDEFINES TOT-CALC.
03 TOT-1 PIC 9(01).
03 TOT-2 PIC 9(01).
01 NUMERO-ASSEGNO PIC 9(10) VALUE ZEROES.
01 TAB-NUM REDEFINES NUMERO-ASSEGNO.
03 EL-NUM PIC 9(01) OCCURS 10.
PROCEDURE DIVISION.
COMPUTE EL-NUM(10) = 10 - TOT-2
The value of TOT-2 is 0(ZERO).
In OCDS the result of: EL-NUM(10) = 0
but in Server Express: EL-NUM(10) = ":" non-numeric value
Resolution:
The solution to this problem is to compile the code in Server Express using the HOSTARITHMETIC compiler directive.



