如何在MS Access中按分数金额进行订购？

Question

我正在尝试创建一个MS Access查询以显示两个类别的分数。 A类和B类。我试图选择总成绩最高的前3名学生，但我不确定该怎么做。现在，我通过他们的NIM（学生证件）来订购它

我尝试用其他替代方式替换该订单，例如SUM（xx）/ sum（xx）DESC，但它不起作用。你能帮我指出吗？

SELECT *
FROM
    (
        SELECT
            m.NIM                                                                                         AS NIM
          , m.Nama_Mhs                                                                                    AS Nama_Mhs
          , n.Kelas                                                                                       AS Kelas
          , n.Tahun_Akademik                                                                              AS Tahun
          , SUM(k.SKS         * Switch(n.Huruf ='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0)) AS NilaiTotalA
          , ROUND(NilaiTotalA / SUM(k.SKS), 2)                                                                    As NilaiIPKA
        FROM
            (Master_Mahasiswa m
            INNER JOIN
                Nilai n
                On
                    m.NIM=n.NIM)
            INNER JOIN
                Master_MK k
                On
                    k.Kode_MK=n.Kode_MK
        GROUP BY
            m.NIM
          , m.Nama_Mhs
          , n.Kelas
          , n.Tahun_Akademik
        HAVING
            n.Kelas ='IK - 2A'
        ORDER BY
            SUM(k.SKS*SWITCH(n.Huruf='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0))/SUM(k.SKS) DESC
    )
    sub1
    RIGHT JOIN
        (
            SELECT
                TOP 3 m.NIM                                                                                 AS NIM
              , m.Nama_Mhs                                                                                  AS Nama_Mhs
              , n.Kelas                                                                                     AS Kelas
              , n.Tahun_Akademik                                                                            AS Tahun
              , SUM(k.SKS        *SWITCH(n.Huruf='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0)) AS NilaiTotalB
              , ROUND(NilaiTotalB/SUM(k.SKS), 2)                                                                   AS NilaiIPKB
            FROM
                (Master_Mahasiswa m
                INNER JOIN
                    Nilai n
                    ON
                        m.NIM=n.NIM)
                INNER JOIN
                    Master_MK k
                    ON
                        k.Kode_MK=n.Kode_MK
            GROUP BY
                m.NIM
              , m.Nama_Mhs
              , n.Kelas
              , n.Tahun_Akademik
            HAVING
                n.Kelas ='IK - 2B'
            ORDER BY
                SUM(k.SKS*SWITCH(n.Huruf='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0))/SUM(k.SKS) DESC
        )
        sub2
        ON
            MID(sub1.NIM, 11, 2)=MID(sub2.NIM, 11, 2)
ORDER BY
    sub2.NIM
UNION
SELECT *
FROM
    (
        SELECT
            TOP 3 m.NIM                                                                                   As NIM
          , m.Nama_Mhs                                                                                    As Nama_Mhs
          , n.Kelas                                                                                       As Kelas
          , n.Tahun_Akademik                                                                              As Tahun
          , SUM(k.SKS        * Switch(n.Huruf ='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0)) AS NilaiTotalA
          , ROUND(NilaiTotalA/SUM(k.SKS), 2)                                                                     AS NilaiIPKA
        FROM
            (Master_Mahasiswa m
            INNER JOIN
                Nilai n
                ON
                    m.NIM=n.NIM)
            INNER JOIN
                Master_MK k
                ON
                    k.Kode_MK=n.Kode_MK
        GROUP BY
            m.NIM
          , m.Nama_Mhs
          , n.Kelas
          , n.Tahun_Akademik
        HAVING
            n.Kelas ='IK - 2A'
        ORDER BY
            SUM(k.SKS*SWITCH(n.Huruf='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0))/SUM(k.SKS) DESC
    )
    sub1
    LEFT JOIN
        (
            SELECT
                m.NIM                                                                                       AS NIM
              , m.Nama_Mhs                                                                                  AS Nama_Mhs
              , n.Kelas                                                                                     AS Kelas
              , n.Tahun_Akademik                                                                            AS Tahun
              , SUM(k.SKS        *SWITCH(n.Huruf='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0)) AS NilaiTotalB
              , ROUND(NilaiTotalB/SUM(k.SKS), 2)                                                                   AS NilaiIPKB
            FROM
                (Master_Mahasiswa m
                INNER JOIN
                    Nilai n
                    ON
                        m.NIM=n.NIM)
                INNER JOIN
                    Master_MK k
                    ON
                        k.Kode_MK=n.Kode_MK
            GROUP BY
                m.NIM
              , m.Nama_Mhs
              , n.Kelas
              , n.Tahun_Akademik
            HAVING
                n.Kelas ='IK - 2B'
            ORDER BY
                SUM(k.SKS*SWITCH(n.Huruf='A', 4, n.Huruf='B', 3, n.Huruf='C', 2, n.Huruf='D', 1, TRUE, 0))/SUM(k.SKS) DESC
        )
        sub2
        ON
            MID(sub1.NIM, 11, 2)=MID(sub2.NIM, 11, 2)
ORDER BY
    sub2.NIM
;

我正在尝试按“ NilaiIPKA”（基本上是A类的平均分数）和“ NilaiIPKB”（是b类的平均分数）排序。我该怎么做？有人可以帮忙查询吗？我需要尽快完成此操作。谢谢

对不起，如果代码有点凌乱，我不知道如何在此处进行实际排列。这是我的MS Access查询https://imgur.com/yzsTRCQ

的屏幕截图