Can u any imrove this query for maximum performance

select g_com_bu_entity bunt_entity
     , g_com_rep_cd srep_cd
     , effdt from_dt
     , eff_status
     , g_com_role role
     , g_com_pgm prgm
     , g_com_district district
     , g_com_draw_status draw_status
     , decode(g_com_primary_pgm, 'Y',1, 0) pri_prgm_flag
FROM ps_g_com_assign_vw@commissions c1
WHERE effdt =
(SELECT MAX (effdt)
FROM ps_g_com_assign_vw@commissions c2
WHERE c1.g_com_bu_entity = c2.g_com_bu_entity
AND c1.g_com_rep_cd = c2.g_com_rep_cd);
can anyone make it as regular query for maximum performance
Thanks,
Sreekanth

Hi Sreekant,
Try this: If it helps
select g_com_bu_entity bunt_entity
, g_com_rep_cd srep_cd
, effdt from_dt
, eff_status
, g_com_role role
, g_com_pgm prgm
, g_com_district district
, g_com_draw_status draw_status
, decode(g_com_primary_pgm, 'Y',1, 0) pri_prgm_flag
FROM ps_g_com_assign_vw@commissions c1,
(SELECT MAX (effdt) effdt_max
FROM ps_g_com_assign_vw@commissions c2
WHERE c1.g_com_bu_entity = c2.g_com_bu_entity
AND c1.g_com_rep_cd = c2.g_com_rep_cd) t2
WHERE effdt = t2.effdt_max;

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