WITH tw1 AS(
SELECT 
    PF_CODE
FROM PREFECTURE
WHERE PF_NAME IN('北海道','青森県','岩手県','宮城県','福島県')
),

tw2 AS(
SELECT
    t1.AGE_CODE AS '年齢コード',
    AGE_GRP.AGE_NAME AS '年齢階層名',
    SUM(t1.SP_TIME_5) AS '5時間未満',
    SUM(t1.SP_TIME_6) AS '5時間以上6時間未満',
    SUM(t1.SP_TIME_7) AS '6時間以上7時間未満',
    SUM(t1.SP_TIME_8) AS '7時間以上8時間未満',
    SUM(t1.SP_TIME_9) AS '8時間以上9時間未満',
    SUM(t1.SP_TIME_9OVER) AS '9時間以上'

FROM SLEEP_TIME_DTL AS t1
LEFT JOIN tw1 ON t1.PF_CODE = tw1.PF_CODE,
AGE_GRP ON t1.AGE_CODE = AGE_GRP.AGE_CODE
GROUP BY t1.AGE_CODE
)

SELECT 
    tw2.*
FROM tw2
ORDER BY 1