In order to populate a new column of the Denodo view with the same value for all records, I would create derived views over the respective base view and perform the following steps:
* Under the output tab of the derived view, click on the '**New field**' button.
* In the '**New Field**' dialog box, set the column name in '*Field name*' parameter.
* Provide the corresponding value directly in the '*Field expression*' parameter so that the same value applies to all records of the column and save the changes.
Hope this helps!