gl Drill down to vendor

SELECT  gjh.period_name,
gjh.je_source,
gjh.je_category,
gcc.CONCATENATED_SEGMENTS,
NVL (SUM (xal.accounted_dr), 0) AS debit,
        NVL (SUM (xal.accounted_cr), 0) AS credit,
          NVL (SUM (xal.accounted_dr), 0)
        - NVL (SUM (xal.accounted_cr), 0) AS net,
        xal.accounting_class_code
    --xte.TRANSACTION_NUMBER
 --i.*
 FROM   gl_je_headers gjh,
       gl_je_lines gjl,
       gl_code_combinations_kfv gcc,
       gl_import_references gir,
       xla_ae_lines xal,
       xla_ae_headers xah,
       po_vendors pov
WHERE       gjh.status = 'P'
       AND gjh.actual_flag = 'A'
       AND gjh.je_header_id = gjl.je_header_id
          and gjh.je_category = 'Payments'
          and gcc.SEGMENT1 like '20'
          and gjh.PERIOD_NAME like 'MAR-11'
         -- and f.ENTITY_ID = xte.ENTITY_ID
          --and f.LEDGER_ID = xte.LEDGER_ID
          --and f.LEDGER_ID like '2034'
          AND pov.vendor_id(+) = xal.party_id
          group by gjh.period_name,
gjh.je_source,
gjh.je_category,
gcc.CONCATENATED_SEGMENTS,
xal.accounting_class_code