Hi Nanda,
Try this:
update test_1
set Score = B.Score,
Reason_cd_1 = B.Reason_cd_1,
Reason_cd_2 = B.Reason_cd_2,
Reason_cd_3 = B.Reason_cd_3,
Reason_cd_4 = B.Reason_cd_4,
Reason_cd_5 = B.Reason_cd_5
From test_1 A, Test_2 B
where A.program_num = B.program_num
and A.test_yr =...