SELECT 
    AGE_CODE AS 年齢
    ,AGE_NAME AS 年齢階層名
    ,SUM(SLEEP_TIME_DTL.SP_TIME_5) AS "5時間未満"
    ,SUM(SLEEP_TIME_DTL.SP_TIME_6) AS "5時間以上6時間未満"
    ,SUM(SLEEP_TIME_DTL.SP_TIME_7) AS "6時間以上7時間未満"
    ,SUM(SLEEP_TIME_DTL.SP_TIME_8) AS "7時間以上8時間未満"
    ,SUM(SLEEP_TIME_DTL.SP_TIME_9) AS "8時間以上9時間未満"
    ,SUM(SLEEP_TIME_DTL.SP_TIME_9OVER) AS "9時間以上"
FROM
    SLEEP_TIME_DTL
JOIN
    AGE_GRP USING (AGE_CODE) 
JOIN
    PREFECTURE USING (PF_CODE) 
WHERE
    PF_NAME IN ('北海道', '青森県', '岩手県', '宮城県', '福島県')
GROUP BY
  1,2
ORDER BY
    1 ASC;