SAP Hana is an advanced technology that came into limelight after 2011. It's an in-memory database which helps in processing data on the fly and real-time analysis. With this you need to wait till the end of the day to get the results, SAP HANA will get your job done. Keep at least 32GB of space to install it on your PC.
For online SAP HANA training, I'd suggest cities like Bangalore, Chennai and Hyderabad are popular places to find better training institutes. The one institute that I'd suggest, which provides online training in all of these cities is Intellipaat.