Current Situation: Our SAPUI5 application is consuming ODATA services through SAP NW Gateway. These SAPUI5 applications are configured on SAP Portal.
The ECC system which we are using has Oracle Version 22.214.171.124.0 DB.
Future Situation: We are planning to migrate the DB to HANA version 1.00.122.11.1499758750.
Queries : 1.What are the technical issues or challenges which we need to consider before migrating?
2. Would there be any impact on current ABAP programs like Function Modules, RFCs etc. ? Do we need to do any code changes in Function Modules?
3. Will there be any impact on ODATA?
4. How about roles and authorization?
Please throw some light on this.
Thanks In Advance.