SELECT
    -- AGE_GRP.AGE_CODE -- DEBUG
    AGE_NAME AS '年齢階層'
    -- , CASE WHEN TIME_CODE = 120 THEN TARGET_POP ELSE null END -- DEBUG
    , SUM(CASE WHEN TIME_CODE = 120 THEN TARGET_POP ELSE 0 END) AS '5時間未満'
    , SUM(CASE WHEN TIME_CODE = 130 THEN TARGET_POP ELSE 0 END) AS '5時間以上6時間未満'
    , SUM(CASE WHEN TIME_CODE = 140 THEN TARGET_POP ELSE 0 END) AS '6時間以上7時間未満'
    , SUM(CASE WHEN TIME_CODE = 150 THEN TARGET_POP ELSE 0 END) AS '7時間以上8時間未満'
    , SUM(CASE WHEN TIME_CODE = 160 THEN TARGET_POP ELSE 0 END) AS '8時間以上9時間未満'
    , SUM(CASE WHEN TIME_CODE = 170 THEN TARGET_POP ELSE 0 END) AS '9時間以上'
    , SUM(CASE WHEN TIME_CODE = 180 THEN TARGET_POP ELSE 0 END) AS '不詳'
FROM
    SLEEP_TIME_DTL
RIGHT OUTER JOIN
    AGE_GRP ON SLEEP_TIME_DTL.AGE_CODE = AGE_GRP.AGE_CODE
    -- 年齢コードすべてについてこの結果を取得できていない
    -- （SLEEP_TIME_DTLにINNER JOINしているため）→これを解決するのにOUTER JOINする
GROUP BY
    AGE_GRP.AGE_CODE
ORDER BY
    AGE_GRP.AGE_CODE ASC
;