使用SQL PIVOT从列到行…SQL Server 2008 R2

Question

I have to transpose all the Rows from a table to columns in SQL Server 2008 R2... I have used Pivot to transpose multiple rows of one column into one row with multiple columns. I am not sure how I can use pivot in this scenario...

I would like to pivot the table based on the "EXPENSE" column

SQL Fiddle

The desired output is

Meanwhile I will try to explore the related posts suggested....

Thank you so much for the suggestions...

Answer 1

Based on your desired results it looks like you need to do an unpivot transform followed by a pivot, like this:

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

Note that this isn't dynamic in any way, but rather uses hard coded column values for the years and expenses. It's possible to generate the code in a dynamic fashion - if you want to know how there are plenty of good answers showing how to do dynamic pivot with SQL Server.

Edit: did the dynamic version for fun, it might not be perfect but it should work:

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