If so, you need SAP Universal ID. In a few months, SAP Universal ID will be the only option to login to SAP Community. Without it, you will lose your content and badges. If you have multiple accounts, use the Consolidation Tool to merge your content.
Can anybody explain how the delta mechanism works in HANA,to be precise if there are any changes to the existing records how they are handled .How HANA classifies the current information and past information.