The IS command is used to check if a parameter has 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 | value | Conditional. Parameter Name. |
NOT_NULL | value | Conditional. Parameter Name. |
Example
IS NULL(ID)
IS NOT_NULL(SURNAME)