with k as (
    select a.*
    from SLEEP_TIME_DTL as a
    inner join PREFECTURE as b on a.PF_CODE = b.PF_CODE
    where b.PF_NAME in ('北海道', '青森県', '岩手県', '宮城県', '福島県')
)
select k.AGE_CODE as '年齢コード',
    sum(SP_TIME_5) as '5時間未満',
    sum(SP_TIME_6) as '5時間以上6時間未満',
    sum(SP_TIME_7) as '6時間以上7時間未満',
    sum(SP_TIME_8) as '7時間以上8時間未満',
    sum(SP_TIME_9) as '8時間以上9時間未満',
    sum(SP_TIME_9OVER) as '9時間以上'
from k
inner join AGE_GRP on k.AGE_CODE = AGE_GRP.AGE_CODE
group by k.AGE_CODE;