select
    SLEEP_TIME_DTL.AGE_CODE AS 年齢コード
    , AGE_GRP.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
inner join AGE_GRP
    on SLEEP_TIME_DTL.AGE_CODE = AGE_GRP.AGE_CODE
inner join PREFECTURE
    on SLEEP_TIME_DTL.PF_CODE = PREFECTURE.PF_CODE
where
    PREFECTURE.PF_NAME IN ("北海道", "青森県", "岩手県", "宮城県", "福島県")
group by
    SLEEP_TIME_DTL.AGE_CODE
order by
    SLEEP_TIME_DTL.AGE_CODE
;