使用 SQL PIVOT...SQL Server 2008 R2 的列到行

Question

我必须将 table 中的所有行转置到 SQL Server 2008 R2 中的列...我使用 Pivot 将一列的多行转置为多列的一行.我不确定在这种情况下如何使用 pivot...

我想根据 "EXPENSE" 列

旋转 table

SQL Fiddle

期望的输出是

同时我会尝试探索建议的相关帖子....

非常感谢您的建议...

Answer 1

根据您想要的结果，您似乎需要先执行逆轴变换，然后再执行轴，如下所示：

select 
    YEAR, 
    [Bps on Assets],[Setup Fee],[Account Min],[BAA Fees],[RedTail Fees (CRM)],
    [RedTail Fees (Per User)],[External IT],[External IT Setup] 
from (
    select Expense, value, year 
    from SM_TechBundleExpnsRates
    unpivot (
       value FOR year IN ([Year1], [Year2], [Year3], [Year4], [Year5]) 
    ) up 
) a
pivot (
    sum(value) for expense in 
          (
           [Bps on Assets],[Setup Fee],[Account Min],
           [BAA Fees],[RedTail Fees (CRM)],
           [RedTail Fees (Per User)],[External IT],[External IT Setup]
          )
) p

Sample SQL Fiddle

请注意，这在任何方面都不是动态的，而是对年份和费用使用硬编码列值。可以以动态方式生成代码 - 如果您想知道如何有很多好的答案显示如何使用 SQL Server 进行动态转换。

编辑：为了好玩做了动态版本，它可能不完美但应该可以：

DECLARE @sql AS NVARCHAR(MAX)
DECLARE @year_cols AS NVARCHAR(MAX)
DECLARE @expe_cols AS NVARCHAR(MAX)

SELECT @expe_cols= ISNULL(@expe_cols + ',','') + QUOTENAME(Expense)
FROM (SELECT DISTINCT Expense FROM SM_TechBundleExpnsRates) AS Expenses

SELECT @year_cols= ISNULL(@year_cols + ',','') + QUOTENAME(year) 
FROM (
    SELECT c.name AS year 
    FROM sys.tables t JOIN sys.columns c ON t.object_id = c.object_id 
    WHERE t.name = 'SM_TechBundleExpnsRates' AND c.name LIKE '%Year%'
) AS Years


SET @sql = N'
SELECT 
    Year, ' + @expe_cols + '    
FROM (
    SELECT Expense, Value, Year 
    FROM SM_TechBundleExpnsRates
    UNPIVOT ( Value FOR Year IN (' + @year_cols + ') ) AS up
) a PIVOT ( SUM(Value) FOR Expense IN (' + @expe_cols + ') ) p'

EXEC sp_executesql @sql

使用 SQL PIVOT...SQL Server 2008 R2 的列到行

Columns to Rows using SQL PIVOT... SQL Server 2008 R2

sql

sql-server

sql-server-2008-r2