Hi Venkatesh,
for database administration, SAP has a trainnig offering in the form of the HA200 course, and there are related certifications (e.g. for HANA installation).
A nice entry point is the book that Lars Breddemann and I have written: http://scn.sap.com/people/lars.breddemann/blog/2014/09/03/book-announcement-sap-hana-administration.
Best regards,
Richard