select
  AGE_CODE as 年齢コード,
  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
  join
  AGE_GRP
     using (AGE_CODE)
  join
  PREFECTURE
    using (PF_CODE)
WHERE
  PF_NAME IN ('北海道', '青森県', '岩手県', '宮城県', '福島県')
GROUP BY
  AGE_CODE,
  AGE_NAME