SELECT a.AGE_CODE AS '年齢コード', a.AGE_NAME AS '年齢階層名',
    SUM(s.SP_TIME_5) AS '5時間未満', SUM(s.SP_TIME_6) AS '5時間以上6時間未満',
    SUM(s.SP_TIME_7) AS '6時間以上7時間未満', SUM(s.SP_TIME_8) AS '7時間以上8時間未満',
    SUM(s.SP_TIME_9) AS '8時間以上9時間未満', SUM(s.SP_TIME_9OVER) AS '9時間以上'
        FROM  SLEEP_TIME_DTL s INNER JOIN AGE_GRP a USING(AGE_CODE)
WHERE s.PF_CODE IN (SELECT PF_CODE FROM PREFECTURE WHERE PF_NAME IN 
                    ('北海道', '青森県', '岩手県', '宮城県', '福島県'))
GROUP BY AGE_CODE
ORDER BY a.AGE_CODE;