select
    PF_CODE as 都道府県コード
    , PF_NAME as 都道府県名
    , ROUND(
        cast(INP_YES as REAL) / cast((INP_YES + INP_NO + UNIDENTIFIED) as REAL) * 100
        , 1
    ) as 入院率
from
    PREFECTURE 
    JOIN
        HOSPITALIZATION
        USING(PF_CODE)
order by
    入院率 desc,  都道府県コード