The ColumnsNullByDefault property controls column default value behavior when a table is created in the Microsoft® SQL Server™ database.
object.ColumnsNullByDefault [= value]
object
Expression that evaluates to an object in the Applies To list
value
TRUE or FALSE
Boolean
Read/write
HRESULT GetColumnsNullByDefault(LPBOOL pRetVal);
HRESULT SetColumnsNullByDefault(BOOL NewValue);
If TRUE, columns in new tables allow NULL.
If FALSE, columns in new tables do not allow NULL.
The default behavior can be changed on a column-by-column basis. For more information, see AllowNulls Property.