Defining and Manipulating Variables › Define Variables › Operand Explanations › Usage Notes

Usage Notes

The following usage notes apply:

1. If you use two VDEFINE, UDEFINE or GDEFINE statements in a program to define the same variable name, the second statement will delete the first variable before defining it a second time. As a result, any value assigned to the variable will be lost.
2. If you use a VDEFINE statement and a UDEFINE statement to define the same variable name in a program, a SET statement for that variable will update only the variable defined with VDEFINE. As a result, you will not be able to pass the value of the variable to another ACL/E program.

Important! Be careful when defining global variables with GDEFINE. These variables will persist after the ACL/E program has executed and will not be deleted except by an explicit GDELETE statement.