The persistence service is a very important service that the SAP HANA Cloud Platform provides.
As a developer you get the possibility to start implementing a persistence layer into your application right away without having to install and maintain a database. In my interview with Xiang Xu you can get some insights into how the persistence service works in SAP HANA Cloud Platform.
Xiang explains how you can use the SAP HANA Studio to access data in the HANA database of SAP HANA Cloud Platform in case you've chosen to run your account with a HANA database. You'll also get some insights into what we are doing as contributors to the open source project EclipseLink.
BTW: Did you know SAP has currently 54 committers in different Eclipse projects?
For more information you can use the SAP HANA Cloud Platform help page for the Persistence Service. Should you have more questions please feel free to reach-out to Xiang Xu or myself. Either via Twitter or via a direct message here on SCN.
For those of you who don't know how to start with SAP HANA Cloud Platform, yet: visit the developer center for SAP HANA Cloud Platform and get started quickly.
Have fun and happy coding,
Rui