The Nullable property specifies whether a column can contain null values
| Column Object | 
object.Nullable [= value]
| Part | Description | 
|---|---|
| object | Expression that evaluates to an object in the Applies To list | 
| value | Whether a column can contain null values | 
Variant Boolean
Read/write
HRESULT GetNullable(VARIANT_BOOL *pRetVal);
HRESULT SetNullable(VARIANT_BOOL NewValue);