SELECT
    h.PF_CODE AS 都道府県コード,
    p.PF_NAME AS 都道府県名,
    ROUND( CAST(h.INP_YES AS REAL) / NULLIF((h.INP_YES + h.INP_NO + h.UNIDENTIFIED), 0) * 100,1) AS 入院率
FROM
    HOSPITALIZATION AS h
INNER JOIN 
    PREFECTURE AS p ON h.PF_CODE = p.PF_CODE
ORDER BY
    入院率 DESC,
    h.PF_CODE ASC;