SELECT
    DTL.AGE_CODE AS 年齢コード,
    AG.AGE_NAME AS 年齢階層名,
    DTL.SP_TIME_5 AS "5時間未満",
    DTL.SP_TIME_6 AS "5時間以上6時間未満",
    DTL.SP_TIME_7 AS "6時間以上7時間未満",
    DTL.SP_TIME_8 AS "7時間以上8時間未満",
    DTL.SP_TIME_9 AS "8時間以上9時間未満",
    DTL.SP_TIME_9OVER AS "9時間以上"
FROM
    SLEEP_TIME_DTL AS DTL
    INNER JOIN AGE_GRP AS AG
        ON DTL.AGE_CODE = AG.AGE_CODE
    INNER JOIN PREFECTURE AS PF
        ON DTL.PF_CODE = PF.PF_CODE
ORDER BY DTL.AGE_CODE DESC