Well, Power BI is not really a full functional BI Tool, it is more as a visualization tool (a very good user friendly tool btw), but it has a lot of features to data prep tasks with simple data, not other complex formats like xml or json.
Basically, the main difference is that OBIEE is oriented to predefined Analysis versus PowerBI which is related to ad-hoc analysis where you can have self-service BI functionality. If you want to campare an Oracle Tool versus Power BI, you can check Oracle Data…
