select ims_md_id from ims_md_educational where ims_md_id = :ims_md_id update ims_md_educational set difficulty_s = :difficulty_s, difficulty_v = :difficulty_v where ims_md_id = :ims_md_id insert into ims_md_educational (ims_md_id, difficulty_s, difficulty_v) values (:ims_md_id, :difficulty_s, :difficulty_v) select difficulty_s, difficulty_v, ims_md_id from ims_md_educational where ims_md_id = :ims_md_id