SELECT
CAST(pt.PF_CODE AS INT) AS 都道府県コード,
p.PF_NAME AS 都道府県名,
pt.TOTAL_AMT AS 総人口2015年,
pt2.TOTAL_AMT AS 総人口2020年,
ROUND(CAST(pt2.TOTAL_AMT AS REAL) / pt.TOTAL_AMT * 100, 0) AS 人口増加率
FROM
POPU_TRANSITION AS pt
LEFT JOIN
(SELECT PF_CODE, TOTAL_AMT FROM POPU_TRANSITION WHERE SURVEY_YEAR >= 2020 AND SURVEY_YEAR < 2021) AS pt2
ON pt.PF_CODE = pt2.PF_CODE
LEFT JOIN PREFECTURE AS p
ON pt.PF_CODE = p.PF_CODE
WHERE pt.SURVEY_YEAR >= 2015
AND pt.SURVEY_YEAR < 2016
AND pt2.TOTAL_AMT > pt.TOTAL_AMT
ORDER BY 人口増加率 DESC, 都道府県コード ASC