title: power bi no data view option; need to import first
body: <p>I have a Problem with Power BI Desktop (September 2019). When I open Power BI everything is fine and I can see all the different views on the left side (report, data and model) but as soon as I want to load data from our server through get data >> Oracle database and choose the database I need, the data view on the left disappears and the option "Enter Data" in the home menu is greyed out and I can't click on it anymore. Since the Query Editor works I always edit the tables there  but when I want to Change something (for example add a column) there is Always the warning : Switch to Import mode and it says that this may cause a huge amount of data being imported. I tried to Import it and it worked but my data changes every day so it's not an option for me because of the data amount. I then thought that there just is no way for me to edit that much but now my colleague said that he has the same database but with his one the data view is not missing and he can edit a lot more. </p>
  
  <p>Now the Question: Has anyone an idea how to solve this because I know that I'm not the only one with that Problem because my colleague said he once had the same Problem but forgot how he solved it.</p>
  
  <p>Thanks</p>