select 
AGE_CODE "年齢コード",
AGE_NAME "年齢階層名",
sum(SP_TIME_5) "5時間未満",
sum(SP_TIME_6) "5時間以上6時間未満",
sum(SP_TIME_7) "6時間以上7時間未満",
sum(SP_TIME_8) "7時間以上8時間未満",
sum(SP_TIME_9) "8時間以上9時間未満",
sum(SP_TIME_9OVER) "9時間以上"
from SLEEP_TIME_DTL
left join PREFECTURE using (PF_CODE)
left join AGE_GRP using (AGE_CODE)
where PF_NAME in ('北海道','青森県','岩手県','宮城県','福島県')
and AGE_NAME is not NULL
group by 1, 2
order by 1