WITH POPU_2020 AS(
    SELECT
        PF_CODE,
        SURVEY_YEAR,
        TOTAL_AMT
    FROM
        POPU_TRANSITION
    WHERE
        SURVEY_YEAR = 2020
)
SELECT
    POPU_TRANSITION.PF_CODE AS 都道府県コード,
    PREFECTURE.PF_NAME AS 都道府県名,
    POPU_TRANSITION.TOTAL_AMT AS 総人口2015年,
    POPU_2020.TOTAL_AMT AS 総人口2020年,
    ROUND(CAST(POPU_2020.TOTAL_AMT AS FLOAT) / CAST(POPU_TRANSITION.TOTAL_AMT AS FLOAT) * 100.0, 0) AS 人口増加率
FROM
    POPU_TRANSITION
    INNER JOIN
        PREFECTURE ON PREFECTURE.PF_CODE = POPU_TRANSITION.PF_CODE,
        POPU_2020 ON POPU_2020.PF_CODE = POPU_TRANSITION.PF_CODE
WHERE
    POPU_TRANSITION.SURVEY_YEAR = 2015
    AND 総人口2015年 < 総人口2020年
ORDER BY
    人口増加率 DESC,
    都道府県コード ASC