Hi,
With this scenario, I often use the **ALTER TABLE** command from the VQL shell. More details are found in the *alter column* clause in the [Modifying a Base View](https://community.denodo.com/docs/html/browse/8.0/en/vdp/vql/creating_a_base_view/modifying_a_base_view/modifying_a_base_view) guide.
Hope this helps!