Hi Sonalika,
First of all, you must know what is the database vendor and to deploy the drivers in the PI.
Check the how.to in this document: http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/00b4a020-4ae6-2c10-5a95-fed4ad9a4b60?QuickLink=index&overridelayout=true
Also you should revise if the database vendor has some note in the SAP service.
Regards.