SELECT
    PF_CODE AS 都道府県コード
    , PF_NAME AS 都道府県名
    , MAX(CASE SUB.RANK WHEN 1 THEN NATION_NAME END) AS "1位 国名"
    , MAX(CASE SUB.RANK WHEN 1 THEN AMT END) AS "1位 人数"
    , MAX(CASE SUB.RANK WHEN 2 THEN NATION_NAME END) AS "2位 国名"
    , MAX(CASE SUB.RANK WHEN 2 THEN AMT END) AS "2位 人数"
    , MAX(CASE SUB.RANK WHEN 3 THEN NATION_NAME END) AS "3位 国名"
    , MAX(CASE SUB.RANK WHEN 3 THEN AMT END) AS "3位 人数"
    , SUM(AMT) AS 合計人数 
FROM
(
SELECT
            F.PF_CODE AS PF_CODE
            , P.PF_NAME AS PF_NAME
            , N.NATION_NAME AS NATION_NAME
            , F.AMT AS AMT,
            RANK() OVER
            (PARTITION BY F.PF_CODE
            ORDER BY AMT DESC, F.NATION_CODE
            ) as RANK
                    FROM
            FOREIGNER AS F 
            INNER JOIN NATIONALITY AS N 
                ON N.NATION_CODE = F.NATION_CODE 
            INNER JOIN PREFECTURE AS P 
                ON P.PF_CODE = F.PF_CODE 
        WHERE
            F.NATION_CODE != '113'
)
AS SUB
GROUP BY
    SUB.PF_CODE 
ORDER BY
    合計人数 DESC
    , 都道府県コード ASC;