SELECT
    AGE_GRP.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 "6時間未満",
    SUM(SP_TIME_7) AS "7時間未満",
    SUM(SP_TIME_8) AS "8時間未満",
    SUM(SP_TIME_9) AS "9時間未満",
    SUM(SP_TIME_9OVER) AS "9時間以上"
FROM 
    SLEEP_TIME_DTL
    JOIN AGE_GRP ON SLEEP_TIME_DTL.AGE_CODE = AGE_GRP.AGE_CODE
GROUP BY AGE_GRP.AGE_CODE
ORDER BY 年齢コード;