SELECT
    a.AGE_CODE AS "年齢コード",
    a.AGE_NAME AS "年齢階層名",
    SUM(s.SP_TIME_5) AS "5時間未満",
    SUM(s.SP_TIME_6) AS "5時間以上6時間未満",
    SUM(s.SP_TIME_7) AS "6時間以上7時間未満",
    SUM(s.SP_TIME_8) AS "7時間以上8時間未満",
    SUM(s.SP_TIME_9) AS "8時間以上9時間未満",
    SUM(s.SP_TIME_9OVER) AS "9時間以上"
 FROM SLEEP_TIME_DTL AS s
      INNER JOIN PREFECTURE AS p ON (s.PF_CODE=p.PF_CODE)
      INNER JOIN AGE_GRP    AS a ON (s.AGE_CODE=a.AGE_CODE)
 WHERE p.PF_NAME IN ('北海道','青森県','岩手県','宮城県','福島県')
GROUP BY a.AGE_CODE, a.AGE_NAME