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