SELECT
    t1.PF_CODE as 都道府県コード
    ,t2.PF_NAME as 都道府県名
    ,round(cast(INP_YES as real)/(INP_YES+INP_NO+UNIDENTIFIED)*100,2) as 入院率
FROM
    HOSPITALIZATION t1
inner join PREFECTURE t2
on t1.PF_CODE = t2.PF_CODE

ORDER BY 
    入院率 desc
    ,t1.PF_CODE asc