5.22.7 IS
The IS command is used to check if the return parameter is a NULL reference. If the condition check is true then an OK status is returned or a status of NO is returned.
Syntax:
|
Command |
Keyword |
Value |
Developer notes for Command/Keyword/Value |
|
IS |
NULL |
*RETURN |
Conditional. |
|
NOT_NULL |
*RETURN |
Conditional. |
Example
IS NULL(*RETURN)
IS NOT_NULL(*RETURN)