While creating a default power app with sql, I am facing some issue mention below- As we create a default power app with sql server then add, edit and delete functionality is not present in the app. I can add delete and edit the records from the database but I am not able to do it from UI.
I assume that you are looking for a Dashboard, view, Edit/New form that comes in PowerApps whenever you connect using SharePoint Connector. If that is true, than you can create a PowerApp with SharePoint connector,so that you will have those screens that you are looking for. Than create another PowerApp with SQL connector and copy paste those three screens from previous app to current App and Change the connection.