SELECT
    H.PF_CODE AS 都道府県コード,
    P.PF_NAME AS 都道府県名,
    ROUND(100.0*
            INP_YES / (INP_YES+INP_NO+UNIDENTIFIED)
            ,1)AS 入院率
FROM
    HOSPITALIZATION AS H
JOIN
    PREFECTURE AS P
ON
    H.PF_CODE = P.PF_CODE
GROUP BY
    H.PF_CODE
ORDER BY
    入院率 DESC,
    H.PF_CODE ASC