SELECT
LISTAGG(ASSIGNEESDISPLAYNAME, ', ')
WITHIN GROUP (ORDER BY ASSIGNEESDISPLAYNAME) AS approvers
FROM fa_fusion_soainfra.wftask f
WHERE f.assignees IS NOT NULL
AND f.title LIKE '%' || :P_RFQ_NUMBER || '%'
and f.COMPONENTNAME='NegotiationApproval'
and f.IDENTIFICATIONKEY like '%'||:P_AUCTION_HDR_ID||'%'
AND version = (
SELECT MAX(version)
FROM fa_fusion_soainfra.wftask ffsw
WHERE NVL(ffsw.OUTCOME, '@') != NVL('REJECT', '@')
AND ffsw.title LIKE '%' || :P_RFQ_NUMBER || '%'
AND ffsw.IDENTIFICATIONKEY = f.IDENTIFICATIONKEY
);