select
  h.PF_CODE as 都道府県コード,
  p.PF_NAME as 都道府県名,
  round((INP_YES*100.0)/(h.INP_YES+h.INP_NO+h.UNIDENTIFIED),1) as 入院率
from HOSPITALIZATION h
join PREFECTURE p on h.PF_CODE = p.PF_CODE
order by 入院率 desc, h.PF_CODE