The default user 'admin' has Administrator privileges over the Virtual DataPort server which means the 'admin' has full privileges over all the database. So, if you create any views in the Virtual DataPort Administration Tool, then you should be able to see the views in the tableau if you have successfully connected to the Virtual DataPort server from Tableau.
It might be useful for you to refer to the [step-by-step tutorials](https://community.denodo.com/tutorials/browse/basics/2fs2admintool) for a first introduction to Denodo. Then, you could check the KB article on [How to connect to Denodo from Tableau Desktop](https://community.denodo.com/kb/view/document/How%20to%20connect%20to%20Denodo%20from%20Tableau%20Desktop?category=Northbound+Connections) for information.
Hope this helps!