How to modify the precision of a datetimeoffset column? In a sql-server database with data I have several columns with type datetimeoffset(7). Now I would like to change the precision part of the type to datetimeoffset(0). 

Is this possible without creating a new column of the desired type/precision and renaming the column?

I take solutions using SQL Server Management Studio as well as code (or also a no it's not possible).
This should be a straightforward

alter table tab
alter column x datetimeoffset(0);