Doubt : undo tbs vs roll back segments.
Well other day i was reading about undo tbs and I came across roll back segments.
What I understand is roll back segment is a object that we can create within a schema which will hold undo information.
undo tbs also stores undo information.
So is there is a need to creating roll back segements. or its just a case where. undo tbs design philosophy is changed and rollback segments is there just to mantain back ward compatibility?
The more I read more confused I get.
Need some help here.