select 
    ag.AGE_CODE as '年齢コード',
    max(AGE_NAME) as '年齢階層名',
    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 SLEEP_TIME_DTL std
    join AGE_GRP ag on ag.AGE_CODE = std.AGE_CODE
    join PREFECTURE p on p.PF_CODE = std.PF_CODE 
where p.PF_NAME in ('北海道', '青森県','岩手県','宮城県','福島県') 
group by ag.AGE_CODE

order by ag.AGE_CODE