SELECT
   T1.AGE_NAME AS "年齢階層"
  ,SUM(CASE WHEN T2.TIME_CODE = 120 THEN T2.TARGET_POP ELSE 0 END) AS "5時間未満"
  ,SUM(CASE WHEN T2.TIME_CODE = 130 THEN T2.TARGET_POP ELSE 0 END) AS "5時間以上6時間未満"
  ,SUM(CASE WHEN T2.TIME_CODE = 140 THEN T2.TARGET_POP ELSE 0 END) AS "6時間以上7時間未満"
  ,SUM(CASE WHEN T2.TIME_CODE = 150 THEN T2.TARGET_POP ELSE 0 END) AS "7時間以上8時間未満"
  ,SUM(CASE WHEN T2.TIME_CODE = 160 THEN T2.TARGET_POP ELSE 0 END) AS "8時間以上9時間未満"
  ,SUM(CASE WHEN T2.TIME_CODE = 170 THEN T2.TARGET_POP ELSE 0 END) AS "9時間以上"
  ,SUM(CASE WHEN T2.TIME_CODE = 180 THEN T2.TARGET_POP ELSE 0 END) AS "不詳"
FROM
  AGE_GRP AS T1
INNER JOIN
  SLEEP_TIME_DTL AS T2 ON T1.AGE_CODE=T2.AGE_CODE
GROUP BY
  T1.AGE_NAME
ORDER BY
  T1.AGE_CODE