I have this: 

```
 SELECT 

 firstname, lastname, Sexe, Weight,
 sum(E.Weight) OVER (ORDER BY E.Height 
                     RANGE BETWEEN 10 PRECEDING AND 5 FOLLOWING ) AS SumHeight

 FROM HR.Employees AS E
 ORDER BY E.Height

```

But I get this error:

> 
> RANGE is only supported with UNBOUNDED and CURRENT ROW window frame delimiters.
> 
> 
>