ABAP on HANA Database

Hi All,

Please help me for my below query.

One of our client have recently changed the SAP R/3 data base from Oracle to Hana database. There is some custom program in old system which is running successfully.

Note : Client moving to the system which is on HANA database, and is on ECC release 617 – SAP_APPL (it is not on HANA S/4 etc).

Please let me know whether any change is required to this custom abap program when database alone is changed to HANA?

Regards,

Tibin Joseph