BIP – Query to find Workers with missing Payrolls

SELECT papf.person_number 
      ,ppnf.full_name
      ,paam.assignment_number
  FROM per_all_people_f papf,
       per_person_names_f ppnf,
       per_all_assignments_m paam
 WHERE paam.person_id = ppnf.person_id
   AND papf.person_id = ppnf.person_id
   AND papf.person_id = paam.person_id
   AND trunc(sysdate) BETWEEN papf.effective_start_date AND papf.effective_end_date
   AND trunc(sysdate) BETWEEN paam.effective_start_date AND paam.effective_end_date
   AND trunc(sysdate) BETWEEN ppnf.effective_start_date AND ppnf.effective_end_date
   AND paam.effective_latest_change = 'Y'
   AND paam.primary_flag = 'Y'
   AND paam.assignment_type ='E'
   AND paam.assignment_status_type = 'ACTIVE' 
   AND ppnf.name_type = 'GLOBAL'
   AND NOT EXISTS (SELECT 1
                     FROM pay_rel_groups_dn prgd
					     ,pay_pay_relationships_dn prrd 
						 ,pay_assigned_payrolls_dn papd
	                     ,pay_payroll_terms ppt
					WHERE prgd.assignment_id = paam.assignment_id
					  AND prrd.payroll_relationship_id = prgd.payroll_relationship_id
					  AND papd.payroll_term_id = ppt.payroll_term_id
					  AND ppt.payroll_relationship_id = prrd.payroll_relationship_id) 
ORDER BY 1,2