Need to fetch the grade, grade step and grade rate at the employment level using BI report

Summary:

Hi all

I need to fetch the grade, grade step, and grade rate whichever assign to the person, but in my query, I am getting multiple grade steps assigned to the same person. How do I change it? I want the latest grade, grade step, and grade rate assigned to the person

Content (required):

Below I attach the query, let me know what do I need to change on it

SELECT DISTINCT

pgf.name grade_name,

prv.value,

pgsf.name grade_step_name,

papf.person_number

FROM

PER_GRADES_F_tl PGF,

PER_RATE_VALUES_F prv,

PER_GRADES_F PG,