I will create a join view using multiple base views which I intend to combine and see the output as required. I will then publish this derived view as REST web service in Denodo. So we can easily access it through the browser and other external REST API.
You can refer the [Creating Derived Views](https://community.denodo.com/docs/html/browse/7.0/vdp/administration/creating_derived_views/creating_derived_views) section of Virtual DataPort Administration Guide for steps to create derived views using join,union,selection,flatten,intersect,minus,interface etc.
For publishing the view as Rest web service you can refer to the [Publishing REST Web Services](https://community.denodo.com/docs/html/browse/7.0/vdp/administration/publication_of_web_services/publishing_rest_web_services/publishing_rest_web_services) section of Publication of Web Services of Virtual DataPort Administration Guide.
Hope this helps!