Oracle Expenses SQL Query to find Expense details

SELECT GSOB.NAME "SOB Name",
       AEH.INVOICE_NUM "Report Number",
       AEH.TOTAL,
       AEH.DESCRIPTION,
       PPX.FULL_NAME,
       PPX.EMPLOYEE_NUMBER,
       decode(AEH.WORKFLOW_APPROVED_FLAG,'S','SAVED','I','IMPLICIT SAVE','R','MANAGER REJECTED','M','MANAGER APPROVED','P','PAYABLES APPROVED','A','AUTO APPROVED','W','WITHDRAWN','Y','APPROVED','IN PROGRESS') Status,
       (SELECT APPS.AP_WEB_POLICY_UTILS.GET_LOOKUP_MEANING('EXPENSE REPORT STATUS',
                                                      DECODE(AI.CANCELLED_DATE,
                                                             NULL,
                                                             AEH.EXPENSE_STATUS_CODE,
                                                             'CANCELLED'))
          FROM APPS.AP_INVOICES_ALL AI
         WHERE AI.INVOICE_ID(+) = AEH.VOUCHNO) "Report status",
       NVL(AEH.REPORT_SUBMITTED_DATE, AEH.CREATION_DATE) "Report submitted on",
       CASE
         WHEN NVL2(AAP.ENTERED_DATE, 'Y', 'N') = 'Y' THEN
          AAP.ENTERED_DATE
       END "Manager Approved on",
       AEH.EXPENSE_STATUS_CODE,
       TRUNC(AEH.WEEK_END_DATE) "Report entered date",
       ACA.EMPLOYEE_NUMBER "Auditor Emp Num",
       ACA.FULL_NAME "Auditor Name",
       ACA.ENTERED_DATE "Audited on"
  FROM APPS.GL_SETS_OF_BOOKS GSOB,
       APPS.AP_EXPENSE_REPORT_HEADERS_ALL AEH,
       APPS.PER_PEOPLE_X PPX,
       (SELECT ROW_NUMBER() OVER(PARTITION BY SOURCE_OBJECT_ID ORDER BY NOTE_ID DESC) SRL,
               AN.NOTE_ID,
               AN.SOURCE_OBJECT_ID,
               AN.ENTERED_BY,
               AN.ENTERED_DATE,
               PPX.EMPLOYEE_NUMBER,
               PPX.FULL_NAME
          FROM APPS.AP_NOTES AN, APPS.FND_USER FU, APPS.PER_PEOPLE_X PPX
         WHERE AN.ENTERED_BY = FU.USER_ID
           AND FU.EMPLOYEE_ID = PPX.PERSON_ID
           AND AN.SOURCE_OBJECT_CODE = 'OIE_EXPENSE_REPORT'
           AND TO_CHAR(SUBSTR(AN.NOTES_DETAIL, 1, 24)) =
               'Approver Action: Approve') AAP,
       (SELECT ROW_NUMBER() OVER(PARTITION BY SOURCE_OBJECT_ID ORDER BY NOTE_ID DESC) SRL,
               ANS.NOTE_ID,
               ANS.SOURCE_OBJECT_ID,
               ANS.ENTERED_BY,
               ANS.ENTERED_DATE,
               PPLX.EMPLOYEE_NUMBER,
               PPLX.FULL_NAME
          FROM APPS.AP_NOTES ANS, APPS.FND_USER FUR, APPS.PER_PEOPLE_X PPLX
         WHERE ANS.ENTERED_BY = FUR.USER_ID
           AND FUR.EMPLOYEE_ID = PPLX.PERSON_ID
           AND ANS.SOURCE_OBJECT_CODE = 'OIE_EXPENSE_REPORT'
           AND TO_CHAR(SUBSTR(ANS.NOTES_DETAIL, 1, 15)) = 'Complete Audit.') ACA
 WHERE 1 = 1
   AND AEH.REPORT_HEADER_ID = ACA.SOURCE_OBJECT_ID(+)
   AND AEH.REPORT_HEADER_ID = AAP.SOURCE_OBJECT_ID(+)
   AND AEH.EMPLOYEE_ID = PPX.PERSON_ID
   AND GSOB.SET_OF_BOOKS_ID = AEH.SET_OF_BOOKS_ID
   AND AEH.EXPENSE_STATUS_CODE NOT IN ('INVOICED', 'PAID', 'WITHDRAWN', 'REJECTED')  
   AND NVL (AAP.SRL, 1) = 1  
   AND NVL (ACA.SRL, 1) = 1  
   AND AEH.CREATION_DATE BETWEEN TO_DATE (:DATE_FROM_DDMONYYYY, 'DD-MON-YYYY') AND  TO_DATE (:DATE_TO_DDMONYYYY, 'DD-MON-YYYY')
   AND TRUNC (SYSDATE) BETWEEN TRUNC (PPX.EFFECTIVE_START_DATE) AND TRUNC (PPX.EFFECTIVE_END_DATE);