I think the connection options are still fairly limited at this points. As far as I'm aware you can
- Connect to files. These files can be uploaded for all apps in a workspace (Data Files uploaded Hub --> Import Data) or just for this App (Attached files uploaded using Attached Files)
- Connect to Sales force or Qlik Data Market (using menu --> add data OR Navigation--> Data Manager)
Qlik plan to introduce other options during 2017 including an upload from an in house server option. Until then I plan to create QVDs and save to a folder using the private edition and then manually upload the QVD's all at once. I might set up an incremental load option
Another option if it involves only one App is to update using the private edition. And then delete the App on the server and reload. If I can get the QVD option above working this seems preferable though.