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