select 
    std.age_code as 年齢コード,
    ag.age_name as 年齢階層名,
    sum(std.sp_time_5) as '5時間未満',
    sum(std.sp_time_6) as '5時間以上6時間未満',
    sum(std.sp_time_7) as '6時間以上7時間未満',
    sum(std.sp_time_8) as '7時間以上8時間未満',
    sum(std.sp_time_9) as '8時間以上9時間未満',
    sum(std.sp_time_9over) as '9時間以上'
from
    sleep_time_dtl as std
inner join 
    age_grp as ag
on std.age_code = ag.age_code
inner join 
    prefecture as p
on std.pf_code = p.pf_code and p.pf_name in ('北海道','青森県','岩手県','宮城県','福島県')
group by std.age_code
order by std.age_code