SELECT
  SLEEP_TIME_DTL.AGE_CODE AS "年齢コード"
, AGE_GRP.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
LEFT JOIN AGE_GRP ON AGE_GRP.AGE_CODE = SLEEP_TIME_DTL.AGE_CODE

WHERE 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")
)
AND AGE_GRP.AGE_NAME IS NOT NULL
GROUP BY "年齢コード"
ORDER BY "年齢コード" ASC;