我正面临着以下挑战.我需要在同一列上旋转两次表数据.这是数据的屏幕截图.

我希望每个商品ID都有一行,其中包含每年的购买价值和销售价值.我尝试通过两次选择"年份"列进行此操作,将其格式化一点,以便每个销售年份都以"S"为前缀,每个购买年份以"P"开头,并使用2个枢轴围绕2年列旋转.这是SQL查询(在SQL Server 2008中使用):
SELECT [Item ID],
[P2000],[P2001],[P2002],[P2003],
[S2000],[S2001],[S2002],[S2003]
FROM
(
SELECT [Item ID]
,'P' + [Year] AS YearOfPurchase
,'S' + [Year] AS YearOfSelling
,[Purchasing value]
,[Selling value]
FROM [ItemPrices]
) AS ALIAS
PIVOT
(
MIN ([Purchasing value]) FOR [YearOfPurchase] in ([P2000],[P2001],[P2002],[P2003])
)
AS pvt
PIVOT
(
MIN ([Selling value]) FOR [YearOfSelling] in ([S2000],[S2001],[S2002],[S2003])
)
AS pvt2
Run Code Online (Sandbox Code Playgroud)
结果并不完全是我所希望的(见下图):

如您所见,每个商品ID仍有多行.有没有办法将每行的行数减少到一个?所以它看起来有点像下面的Excel截图?
