-- 
select
    mai.instance_code
  , mxm.sr_instance_id
  , mxm.entity_name
  , mxm.attribute_name
  , mxm.source_value
  , mxm.target_value
from
    msc_xref_mapping   mxm
  , msc_apps_instances mai
where
    mai.instance_id = mxm.sr_instance_id
    and entity_name = 'UOM_CODES'
order by
    1
  , 3
  , 4