REST API for AssignedPayroll not working

Summary

REST API for AssignedPayroll not working

Content

Hi,
I'm unable to perform below operation for AssignedPayroll REST api. I have referred below oracle documentation
https://docs.oracle.com/en/cloud/saas/human-resources/20b/farws/api-payroll-relationships.html

GET - I'm unable to retrieve the already existing assigned payroll based on below URL. Can someone please let me know from which table and which column i can find the values for payrollRelationshipsUniqID, payrollAssignmentsUniqID, assignedPayrollsUniqID. 

/hcmRestApi/resources/11.13.18.05/payrollRelationships/{payrollRelationshipsUniqID}/child/payrollAssignments/{payrollAssignmentsUniqID}/child/assignedPayrolls/{assignedPayrollsUniqID}

I want to perform create and update assigned payroll using rest api as well. But if i know the table and column name for above parameters then i should be able create and update as well.