| NULL | Index Level | NUM |
| Syntax | |
| Category | BASIC |
| Type | Definition |
| Description | represents an empty string or decimal zero value depending on the context, string or arithmetic operation. |
| Options | |
| See Also | Boolean Evaluation |
| Example | |
| Warnings | |
| Compatibility | D3 7.0 AP R83 |
| NULL | Index Level | NUM |