IsNull ( expression )
Section titled “IsNull ( expression )”| Argument | Description |
|---|---|
| expression | An expression that you want to test to determine whether its return value is null |
Data type: Boolean Returns true if expression returns null.
Example:
The value ‘The sun is shining..’ is not a valid text representation for a date then the function Date() will return null.
IsNull( Date( ‘The sun is shining..’ ))