⟩ Can a PeopleTools 8.4 and a PeopleTools 8.1x database run on the same machine?
Yes, databases can co-exist on the same physical machine. In most cases, the databases themselves can exist within the same RDBMS; however, it is important to verify that the database version required by PeopleTools 8.4 is the same as for the current PeopleTools 8.1x implementation.