SELECT 
    AGE_NAME AS 年齢階層
    ,SUM(CASE WHEN TIME_CODE = 120 THEN TARGET_POP END) AS "5時間未満"
    ,SUM(CASE WHEN TIME_CODE = 130 THEN TARGET_POP END) AS "5時間以上6時間未満"
    ,SUM(CASE WHEN TIME_CODE = 140 THEN TARGET_POP END) AS "6時間以上7時間未満"
    ,SUM(CASE WHEN TIME_CODE = 150 THEN TARGET_POP END) AS "7時間以上8時間未満"
    ,SUM(CASE WHEN TIME_CODE = 160 THEN TARGET_POP END) AS "8時間以上9時間未満"
    ,SUM(CASE WHEN TIME_CODE = 170 THEN TARGET_POP END) AS "9時間以上"
    ,SUM(CASE WHEN TIME_CODE = 180 THEN TARGET_POP END) AS "不詳"
FROM
    SLEEP_TIME_DTL tbl1
INNER JOIN
    AGE_GRP tbl2
ON
    tbl1.AGE_CODE = tbl2.AGE_CODE
GROUP BY
    AGE_NAME