SELECT
  t2.age_name as '年齢階層'
  , sum(case when t1.time_code = 120 then target_pop else 0 end) as '5時間未満'
  , sum(case when t1.time_code = 130 then target_pop else 0 end) as '5時間以上6時間未満'
  , sum(case when t1.time_code = 140 then target_pop else 0 end) as '6時間以上7時間未満'
  , sum(case when t1.time_code = 150 then target_pop else 0 end) as '7時間以上8時間未満'
  , sum(case when t1.time_code = 160 then target_pop else 0 end) as '8時間以上9時間未満'
  , sum(case when t1.time_code = 170 then target_pop else 0 end) as '9時間以上'
  , sum(case when t1.time_code = 180 then target_pop else 0 end) as '不詳'
FROM
  sleep_time_dtl t1
inner join
  age_grp t2
on t1.age_code = t2.age_code
group by t2.age_name
order by t1.age_code
;