Ubah hasil vertikal menjadi mode horizontal (T-SQL)

Seperti yang telah dikatakan, ini sebenarnya tidak mungkin, yang paling dekat yang bisa Anda dapatkan adalah:

January2014CalculationDate | January2014PLResult | February2014CalculationDate | February2014PLResult
---------------------------+---------------------+-----------------------------+------------------
    2014-01-02             |       100           |       2014-02-03            |       300
    2014-01-03             |       200           |       2014-02-04            |       400
    NULL                   |       NULL          |       2014-02-27            |       500

Dan bahkan itu tidak sederhana dan saya masih menyarankan penanganan format seperti ini di luar sql. Langkah pertama adalah mempartisi data berdasarkan bulan, dan kemudian memberi peringkat tanggal di setiap bulan:

SELECT  CalculationDate,
        PLResult,
        CalculationMonth,
        DenseRank = DENSE_RANK() OVER(PARTITION BY CalculationMonth ORDER BY CalculationDate)
FROM    (   SELECT  CalculationDate,
                    PLResult,
                    CalculationMonth = DATEADD(MONTH, DATEDIFF(MONTH, 0, CalculationDate), 0)
            FROM    #PLResultPerDay
        ) pl;

Ini memberikan:

CalculationDate PLResult    CalculationMonth    DenseRank
2014-01-02      100         2014-01-01          1
2014-01-03      200         2014-01-01          2
2014-02-03      300         2014-02-01          1
2014-02-04      400         2014-02-01          2
2014-02-27      500         2014-02-01          3

Anda kemudian dapat memutar data ini:

WITH Data AS
(   SELECT  CalculationDate,
            PLResult,
            CalculationMonth,
            DenseRank = DENSE_RANK() OVER(PARTITION BY CalculationMonth ORDER BY CalculationDate)
    FROM    (   SELECT  CalculationDate,
                        PLResult,
                        CalculationMonth = DATEADD(MONTH, DATEDIFF(MONTH, 0, CalculationDate), 0)
                FROM    #PLResultPerDay
            ) pl
)
SELECT  Jan2014CalcDate = MIN(CASE WHEN CalculationMonth = '20140101' THEN CalculationDate END),
        Jan2014Result = SUM(CASE WHEN CalculationMonth = '20140101' THEN PLResult END),
        Feb2014CalcDate = MIN(CASE WHEN CalculationMonth = '20140201' THEN CalculationDate END),
        Feb2014Result = SUM(CASE WHEN CalculationMonth = '20140201' THEN PLResult END)
FROM    Data
GROUP BY DenseRank
ORDER BY DenseRank;

Ini memberikan:

Jan2014CalcDate Jan2014Result   Feb2014CalcDate Feb2014Result
2014-01-02      100             2014-02-03      300
2014-01-03      200             2014-02-04      400
NULL            NULL            2014-02-27      500

Kemudian karena Anda memiliki jumlah bulan yang dinamis, Anda perlu membuat pernyataan di atas secara dinamis dan menggunakan SP_EXECUTESQL untuk menjalankannya:

DECLARE @SQL NVARCHAR(MAX) = '';

WITH Months AS
(   SELECT  M,
            ColName = DATENAME(MONTH, M) + DATENAME(YEAR, M),
            CharFormat = CONVERT(VARCHAR(8), M, 112)
    FROM    (   SELECT  DISTINCT M = DATEADD(MONTH, DATEDIFF(MONTH, 0, CalculationDate), 0)
                FROM    #PLResultPerDay
            ) m
)
SELECT  @SQL = 'WITH Data AS
                (   SELECT  CalculationDate,
                            PLResult,
                            CalculationMonth,
                            DenseRank = DENSE_RANK() OVER(PARTITION BY CalculationMonth ORDER BY CalculationDate)
                    FROM    (   SELECT  CalculationDate,
                                        PLResult,
                                        CalculationMonth = DATEADD(MONTH, DATEDIFF(MONTH, 0, CalculationDate), 0)
                                FROM    #PLResultPerDay
                            ) pl
                )
                SELECT  ' + 
                STUFF(( SELECT  ', ' + ColName + 'CalculationDate = MIN(CASE WHEN CalculationMonth = ''' + CharFormat + ''' THEN CalculationDate END), ' + 
                                ColName + 'PLResult = SUM(CASE WHEN CalculationMonth = ''' + CharFormat + ''' THEN PLResult END)'
                        FROM    Months
                        ORDER BY M
                        FOR XML PATH(''), TYPE
                    ).value('.', 'NVARCHAR(MAX)'), 1, 2, '') + 
                'FROM   Data
                GROUP BY DenseRank
                ORDER BY DenseRank;';

EXECUTE SP_EXECUTESQL @SQL;

Contoh pada SQL Fiddle

Harap dicatat, saya masih menyarankan teknik ini, dan berpikir SQL harus dibiarkan menyimpan/mengambil data, dan lapisan presentasi untuk memformatnya