SELECT 
AGE_GRP.AGE_NAME AS 年齢階層,
-- 年齢階層グループごとに分ける
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 "不祥"
FROM
SLEEP_TIME_DTL
INNER JOIN
AGE_GRP
ON  SLEEP_TIME_DTL.AGE_CODE = AGE_GRP.AGE_CODE
GROUP BY
AGE_GRP.AGE_CODE
ORDER BY
AGE_GRP.AGE_CODE;