Pass by Value Vs Pass by Reference Vs Pass by value and return in SAP ABAP
By Reference
·
Passes a pointer to the original memory location.
· Very efficient
By value
·
Allocates a new memory location for use within the subroutine.
The memory is freed when the subroutine ends.
· Prevents changes to passed variable
By value and result
·
Similar to pass by value, but the contents of the new memory is
copied back into the original memory before returning.
·
Allows changes and allows a rollback
