5.23.4 IS

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 or a status of NO is returned.

Syntax:

Command

Keyword

Value

Developer notes for Command/Keyword/Value

IS

NULL

value

Conditional. Parameter Name.

NOT_NULL

value

Conditional. Parameter Name.

 

 

Example

 

IS NULL(ID)

IS NOT_NULL(SURNAME)