SELECT
h.PF_CODE AS 都道府県コード,
p.PF_NAME AS 都道府県名,
ROUND((h.INP_YES * 100/(h.INP_YES + h.INP_NO + h.UNIDENTIFIED)),2) AS 入院率
FROM
HOSPITALIZATION h
LEFT JOIN PREFECTURE p ON h.PF_CODE = p.PF_CODE
ORDER BY 入院率 DESC,都道府県コード ASC