I have a procedure that is called with two parameters, variable1 is input , variable2 is output. The return value of '1' or '0' is stored in variable2 to indicate whether it was a good return or bad. My question is, how do I see the value stored in the variable? I have tried the standard 'dbms_output.put_line(variable2)' but I don't get anything in the output field for the task.