title: DDEX provider is not installed for Oracle.ManagedDataAccess.Client error with Visual studio 2019
body: <p>After installing visual studio 2019, I tried to update my model in the .edmx file I had this pop-up (I use EntityFrameWork 6 and oracle dataBase)</p>
  
  <p><a href="https://i.stack.imgur.com/agMMN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/agMMN.png" alt="enter image description here"></a></p>