with 
aag_table as (
select AGE_CODE, TIME_CODE, sum(TARGET_POP) as record_count from SLEEP_TIME_DTL
group by 1,2
)

select
AGE_GRP.AGE_NAME as 年齢階層,
sum(case 
    when aag_table.TIME_CODE = 120 then aag_table.record_count
    else NULL 
end) as "5時間未満",
sum(case 
    when aag_table.TIME_CODE = 130 then aag_table.record_count
    else NULL 
end) as "5時間以上6時間未満",
sum(case 
    when aag_table.TIME_CODE = 140 then aag_table.record_count
    else NULL 
end) as "6時間以上7時間未満",
sum(case 
    when aag_table.TIME_CODE = 150 then aag_table.record_count
    else NULL 
end) as "7時間以上8時間未満",
sum(case 
    when aag_table.TIME_CODE = 160 then aag_table.record_count
    else NULL 
end) as "8時間以上9時間未満",
sum(case 
    when aag_table.TIME_CODE = 170 then aag_table.record_count
    else NULL 
end) as "9時間以上",
sum(case 
    when aag_table.TIME_CODE = 180 then aag_table.record_count
    else NULL 
end) as "不詳"
from aag_table
left join AGE_GRP on aag_table.AGE_CODE = AGE_GRP.AGE_CODE
left join SLEEP_TIME on aag_table.TIME_CODE = SLEEP_TIME.TIME_CODE
group by aag_table.AGE_CODE