Hi Katrice,
check out the SAP HANA Academy ( http://www.saphana.com/community/implement/hana-academy ).
For information about ABAP on HANA, see the ABAP for SAP HANA Reference Scenario ( http://scn.sap.com/docs/DOC-35518 ).
For consuming HANA artifacts in ABAP using Database Procedure Proxies and External Views, see http://scn.sap.com/community/abap/eclipse/blog/2013/05/12/consuming-existing-hana-artifacts-in-abap-is-easy .
Regards
Chris