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, else a status of NO is returned.
Syntax:
Command | Keyword | Value | Developer notes |
|---|---|---|---|
IS | NULL | *RETURN | Conditional. |
NOT_NULL | *RETURN | Conditional. |
Example
IS NULL(*RETURN)
IS NOT_NULL(*RETURN)