Is there any difference in normal ABAP and ABAP for SAP HANA ? If yes , then please guide me how to proceed for learning ABAP for SAP HANA ?


Hi Ruchi,
There is a slight difference between ABAP and ABAP for HANA. If you are well aware of all ABAP concepts then you can easily understand the ABAP for HANA concepts.
Some of the differnce which I observed.
1.  New syntax for Open SQL is introduced, which includes support for comma separated lists, enhanced string expressions, the definition of host variables in a more standard fashion, and fewer restrictions for joins.
eg:  SELECT so.matnr, so.mtart FROM mara AS so INTO TABLE @it_mara UPTO 10 ROWS.
2.It uses the TOP DOWN approach so we can use HANA databases capabilities. you can get more information on this in this blog ABAP for HANA and "Code Push-Down"
3. CDS (Core Data Services) View, AMDP (ABAP managed database procedures) are again new features. Refer this document. http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b01089ed-dead-3110-f28e-caa12aeb5e27?QuickLink=index&…
Please go through this link It is helpful for you. https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0CCsQFjAD&url=http%3A%2F%2Fsapinsid…
If you want to learn more about ABAP for SAP HANA then please register for the self placed course on OPENSAP. Here is the link (ABAP Development for SAP HANA - Dr. Jasmin Gruschke and Jens Weiler). I have completed this course and it was very helpful for me to understand the concepts of ABAP for HANA, so I will suggest you to enroll for this course.
Hope this will help you.