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

GROUP BY STD.AGE_CODE

ORDER BY
    STD.AGE_CODE