SELECT "都道府県コード", "都道府県名", 
SUM(CASE WHEN "年" = 2015 THEN "総人口" ELSE 0 END) AS "総人口2015年",
SUM(CASE WHEN "年" = 2020 THEN "総人口" ELSE 0 END) AS "総人口2020年", 
ROUND(CAST(SUM(CASE WHEN "年" = 2020 THEN "総人口" ELSE 0 END) AS REAL)/CAST(SUM(CASE WHEN "年" = 2015 THEN "総人口" ELSE 0 END) AS REAL)*100) AS "人口増加率"
FROM (SELECT POP.SURVEY_YEAR AS "年", POP.PF_CODE AS "都道府県コード", PRE.PF_NAME AS "都道府県名", SUM(POP.TOTAL_AMT) AS "総人口"
FROM POPU_TRANSITION AS POP INNER JOIN PREFECTURE AS PRE on PRE.PF_CODE = POP.PF_CODE
GROUP BY POP.SURVEY_YEAR, POP.PF_CODE)
GROUP BY "都道府県コード"
HAVING "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"
;