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