通过PIVOT更改SQL查询结果

Question

我将更改 SQL 查询中的结果模型。 想象一下下面的查询：

SELECT
    es.LatinName,
    es.CreatedOn
FROM Salex.ExportFile ef
INNER JOIN Salex.ExportFileStep efs ON efs.ExportFileId = ef.Id
INNER JOIN GeneralSalex.ExportSubject es ON es.Id = efs.ExportSubjectId
WHERE ef.Id = 38

结果如下：

但我想将 LatinName 值放在 Columns 中，其 CreatedOn 值如下（预期结果在一行中）：

|Packing List               | Export Bill Of Lading      | ...
|2021-06-15 16:12:57.6200000| 2021-07-31 09:30:12.5600000| ...

我尝试使用

PIVOT

，如下面的代码，但我无法扩展结果：

SELECT 'AverageCost' AS Cost_Sorted_By_Production_Days,   
  [0], [1], [2], [3], [4], [5], [6], [7], [8]    
FROM  
(
    SELECT
        es.LatinName,
        es.CreatedOn
    FROM Salex.ExportFile ef
    INNER JOIN Salex.ExportFileStep efs ON efs.ExportFileId = ef.Id
    INNER JOIN GeneralSalex.ExportSubject es ON es.Id = efs.ExportSubjectId
    WHERE ef.Id = 38
    ) AS SourceTable  
PIVOT  
(  
  AVG(CreatedOn)  
  FOR LatinName IN ([0], [1], [2], [3], [4], [5], [6], [7], [8])  
) AS PivotTable;  

Answer 1

它会是这样的：

SELECT *
FROM (
    SELECT es.LatinName, es.CreatedOn
    FROM Salex.ExportFile ef
    INNER JOIN Salex.ExportFileStep efs ON efs.ExportFileId = ef.Id
    INNER JOIN GeneralSalex.ExportSubject es ON es.Id = efs.ExportSubjectId
    WHERE ef.Id = 38
) AS SourceTable
PIVOT (
    MAX(CreatedOn)
    FOR LatinName IN (
        [Packing List], [Export Bill Of Lading], [Insurance],
        [Provide Export Warranty], [Custom Declaration],
        [Inventory Permit], [Export Invoice], [Sale Invoice],
        [Issued Certificate]
    )
) AS PivotTable;