Gaurav,
thanks a lot for the valuable reference.
We have 3 EHP7 systems. Two of them are on kernel 740 and with SP02.
They have no content in table DDXTT.
One is on kernel 741 and with SP01. It has the two objects mentioned here.
When SP02 installing on it I got the same error and after following your reference I was able to proceed SP02 installation.
Regards, Evgeniy