hi all, i use following syntex for this
UPDATE T1 FROM (SELECT t2_1, MIN(t2_2) from T2 group by 1) as D (D1, D2)
SET Field2 = D2
WHERE Field1 = D1
So i solve my problem as
UPDATE XTZ.KPI FROM (SELECT CONVERTED_TARGET_QTY,NORMAL_VALUE,CRITICAL_VALUE FROM DP_UTL.PRODUCTION_KPI WHERE PACKAGE='SSPET-500') AS D(D1,D2,D3) SET
MaximumValue = D1
, NormalValue = D2
, CriticalValue = D3
WHERE KPIId=125;
Chears