SELECT
    b.AGE_NAME AS 年齢階層
    , SUM(CASE WHEN a.TIME_CODE = 120 THEN a.TARGET_POP ELSE 0 END) AS '5時間未満'
    , SUM(CASE WHEN a.TIME_CODE = 130 THEN a.TARGET_POP ELSE 0 END) AS '5時間以上6時間未満'
    , SUM(CASE WHEN a.TIME_CODE = 140 THEN a.TARGET_POP ELSE 0 END) AS '6時間以上7時間未満'
    , SUM(CASE WHEN a.TIME_CODE = 150 THEN a.TARGET_POP ELSE 0 END) AS '7時間以上8時間未満'
    , SUM(CASE WHEN a.TIME_CODE = 160 THEN a.TARGET_POP ELSE 0 END) AS '8時間以上9時間未満'
    , SUM(CASE WHEN a.TIME_CODE = 170 THEN a.TARGET_POP ELSE 0 END) AS '9時間以上'
    , SUM(CASE WHEN a.TIME_CODE = 180 THEN a.TARGET_POP ELSE 0 END) AS '不詳'
    
FROM
    SLEEP_TIME_DTL a 
    INNER JOIN AGE_GRP b
        ON a.AGE_CODE = b.AGE_CODE
    -- INNER JOIN SLEEP_TIME c
    --     ON a.TIME_CODE = c.TIME_CODE
        
GROUP BY 1
ORDER BY a.AGE_CODE