Well, everybody will be aware of the conversion exit functions available in SAP. The SAP provided conversion exit functions must be called individually in the programs to convert the field value internally and externally. Now, why can’t we do this dynamically by avoiding individual calls to the functions? Background Yes, it can be done ….
You would get insight from Performance perspective when not using the Keys in SELECT with FOR ALL ENTRIES. System would spend definitely more time when there mixture of Entries in the ITAB.
ABAP Objects doesn’t support Multiple Inheritance – Inheriting from more than one Super class, but similar functionality can be achieved using the interfaces.