Isnull()

Working with Formulas > Functions Used in Formulas > Other Functions > Isnull()

ISNULL() determines if a record contains a null value. ISNULL() works on all field types.  When the record within a field is null, the function returns true, otherwise it returns false.

Function Format

ISNULL(value) 

Return Value

ISNULL() returns a Boolean value 

Examples

ISNULL("123") = FALSE

ISNULL("ABC") = FALSE

ISNULL(null) = TRUE