SELECT
a.AGE_CODE as 年齢コード,
a.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
AGE_GRP a
LEFT JOIN
SLEEP_TIME_DTL b
ON a.AGE_CODE = b.AGE_CODE
WHERE
b.PF_CODE IN (SELECT PF_CODE FROM PREFECTURE WHERE PF_NAME IN ("北海道","青森県","岩手県","宮城県","福島県"))
GROUP BY b.AGE_CODE