Hi,
Try this:
SELECT
T2.DocNum,T2.[CardName], T4.[U_Name] as 'UpdatedBy'
FROM
adoc T2
JOIN ado1 T1 ON T2.docentry = T1.docentry AND T2.Objtype = T1.Objtype and T1.Loginstanc = T2.LogInstanc-1
JOIN ado1 T0 ON T2.docentry = T0.docentry AND T2.Objtype = T0.Objtype AND T1.LineNum = T0.LineNum
INNER JOIN OUSR T4 ON T2.UserSign2 = T4.INTERNAL_K
AND T0.LogInstanc = T2.Loginstanc
WHERE
T4.[U_NAME] = [%0]
Thanks & Regards,
Nagarajan
