SELECT 
SLEEP_TIME_DTL.AGE_CODE AS "年齢コード",
AGE_GRP.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 "時間以上9時間未満",
SP_TIME_9OVER AS "9時間以上"

FROM SLEEP_TIME_DTL
LEFT JOIN AGE_GRP ON SLEEP_TIME_DTL.AGE_CODE = AGE_GRP.AGE_CODE
LEFT JOIN PREFECTURE ON SLEEP_TIME_DTL.PF_CODE = PREFECTURE.PF_CODE
WHERE PREFECTURE.PF_NAME = "北海道" OR
PREFECTURE.PF_NAME = "青森県" OR
PREFECTURE.PF_NAME = "岩手県" OR
PREFECTURE.PF_NAME = "宮城県" OR
PREFECTURE.PF_NAME = "福島県" 

GROUP BY AGE_GRP.AGE_NAME
ORDER BY SLEEP_TIME_DTL.AGE_CODE