CREATE TEMPORARY TABLE POP_2015 AS 
SELECT
    *
FROM
    POPU_TRANSITION
WHERE
    SURVEY_YEAR = 2015
;

CREATE TEMPORARY TABLE POP_2020 AS 
SELECT
    *
FROM
    POPU_TRANSITION
WHERE
    SURVEY_YEAR = 2020
;
    
SELECT 
    PREFECTURE.PF_CODE AS 都道府県コード,
    PREFECTURE.PF_NAME AS 都道府県名,
    POP_2015.TOTAL_AMT AS 総人口2015年,
    POP_2020.TOTAL_AMT AS 総人口2020年,
    ROUND(CAST(POP_2020.TOTAL_AMT AS REAL) * 100 
        / CAST(POP_2015.TOTAL_AMT AS REAL)) AS 人口増加率
FROM 
    PREFECTURE
INNER JOIN 
    POP_2015
ON 
    都道府県コード = POP_2015.PF_CODE
INNER JOIN 
    POP_2020
ON 
    都道府県コード = POP_2020.PF_CODE
ORDER BY
    人口増加率 DESC,
    都道府県コード ASC;