SELECT
     std.AGE_CODE           as 年齢コード
    ,ag.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 as std
INNER JOIN AGE_GRP    as ag on ag.AGE_CODE = std.AGE_CODE
INNER JOIN PREFECTURE as p  on p.PF_CODE   = std.PF_CODE
WHERE
    PF_NAME
IN
    ("北海道","青森県","岩手県","宮城県","福島県")
GROUP BY
    年齢コード
ORDER BY
     年齢コード