update existing data inside “InfoCube” not Delete & Insert

Dears,

I have a case which I need to update existing data inside “InfoCube”

Ex:

I have a cube with 10 rows and an “infoobject” “ZResponsiblePerson”.

The first 5 rows the “ZResponsiblePerson” = “Ramzy”

The second 5 rows the “ZResponsiblePerson” = “Hani”

Now this infoobject is updated due to master data update and “Hani” was changed to “Sherif”

Now I want to update the existing 5 rows for “Hani” to be “Sherif”.

If reality they are around 40 Million rows so I cannot delete & reload again.

Thanks,