WITH POP_BY_AGE AS (
  SELECT
    AGE_CODE,
    TIME_CODE,
    SUM(TARGET_POP) AS TOT_TAR_POP
  FROM SLEEP_TIME_DTL
  GROUP BY TIME_CODE, AGE_CODE
)

SELECT
  AG.AGE_NAME AS '年齢階層'
  ,SUM(CASE WHEN TIME_CODE = 120 THEN TOT_TAR_POP ELSE '0' END) AS '5時間未満'
  ,SUM(CASE WHEN TIME_CODE = 130 THEN TOT_TAR_POP ELSE '0' END) AS '5時間以上6時間未満'
  ,SUM(CASE WHEN TIME_CODE = 140 THEN TOT_TAR_POP ELSE '0' END) AS '6時間以上7時間未満'
  ,SUM(CASE WHEN TIME_CODE = 150 THEN TOT_TAR_POP ELSE '0' END) AS '7時間以上8時間未満'
  ,SUM(CASE WHEN TIME_CODE = 160 THEN TOT_TAR_POP ELSE '0' END) AS '8時間以上9時間未満'
  ,SUM(CASE WHEN TIME_CODE = 170 THEN TOT_TAR_POP ELSE '0' END) AS '9時間以上'
  ,SUM(CASE WHEN TIME_CODE = 180 THEN TOT_TAR_POP ELSE '0' END) AS '不詳'

FROM POP_BY_AGE AS PBA

    INNER JOIN AGE_GRP AS AG
    ON AG.AGE_CODE = PBA.AGE_CODE 
GROUP BY 
    年齢階層
ORDER BY 
    AG.AGE_CODE;