with comb as (
    select age_code, time_code from age_grp
    cross join sleep_time
),
agg as (
    select * from comb as c
    inner join sleep_time_dtl as st
    on c.time_code = st.time_code and c.age_code = st.age_code
)
select
    age_name as 年齢階層,
    sum(case time_code when 120 then target_pop else 0 end) as '5時間未満',
    sum(case time_code when 130 then target_pop else 0 end) as '5時間以上6時間未満',
    sum(case time_code when 140 then target_pop else 0 end) as '6時間以上7時間未満',
    sum(case time_code when 150 then target_pop else 0 end) as '7時間以上8時間未満',
    sum(case time_code when 160 then target_pop else 0 end) as '8時間以上9時間未満',
    sum(case time_code when 170 then target_pop else 0 end) as '9時間以上',
    sum(case time_code when 180 then target_pop else 0 end) as '不詳'
from agg
left join age_grp on agg.age_code = age_grp.age_code
group by agg.age_code
order by agg.age_code;