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