Need UE for salary range differentials, compensation zone without touching emp transactional data

We need to retrieve salary basis information(setup data) such as salary range differentials, compensation zone, and grade rate details (minimum, maximum, and midpoint values) along with associated ZIPCODE attached to Comp ZONEs without touching employee transactional data.

We found few UEs like CMP_ASSIGNMENTS_SALARY_DETAILS_UE, CMP_ASSIGNMENT_SALARY_INFO_RGE_UE, But these are attached to assignments, which are transactional data.

In those UEs we found which contains the grade rate ID and salary basis ID, however, when we try to join this with the grade rate UE, we are not getting any data—although the same data is available in backend and we are able to fetch it by using UE query.