我試圖做一個PIVOT查詢出與結構的工作臺:SQL Server 2008中PIVOT - 如何控制列內容
DECLARE @workingData TABLE
(
location VARCHAR(20),
name VARCHAR(50),
sales_type VARCHAR(20),
local_id VARCHAR(15),
house_description VARCHAR(40),
sales_order VARCHAR(10),
order_year INT,
amount NUMERIC(14,0)
)
名稱列包含兩個值之一:「 name1'或'name2'。這些必須在分組中使用,如下所述。
我希望它成爲一個表中的列:
location
sales_type
local_id
house_description
sales_order
name1_2007
name2_2007
name1_2008
name2_2008
name1_2009
name2_2009
name1_2010
name2_2010
我嘗試這樣做:
SELECT
location, sales_type, local_id, house_description, sales_order,
MAX([1]) AS [name1_2007], MAX([2]) AS [name2_2007],
MAX([3]) AS [name1_2008], MAX([4]) AS [name2_2008],
MAX([5]) AS [name1_2009], MAX([6]) AS [name2_2009],
MAX([7]) AS [name1_2010], MAX([8]) AS [name2_2010],
'2010' As [Base Year]
FROM (
SELECT location, sales_type, local_id, house_description, sales_order, order_year, name, amount
,ROW_NUMBER() OVER (PARTITION BY location, sales_type, local_id, sales_order
ORDER BY order_year, name) AS seq
FROM @workingData
) AS SourceTable
PIVOT
(
MAX(amount)
FOR seq IN ([1], [2], [3], [4], [5], [6], [7], [8], [9])
) AS PivotTable
GROUP BY
location, sales_type, local_id, house_description, sales_order
而且這種近乎作品! ;)但我的價值觀沒有放在正確的列。如果特定位置存在特定值,則sales_type,local_id,house_description和sales_order始終在[1]列中輸出。但這應該確定它是name1
還是name2
及其order_year
!
我知道我看到的是我的row_number操作的直接結果,即只有一個條目存在時,seq列將被計算爲1。所以也許我是以這種錯誤的方式攻擊?
有人可以解決這個問題嗎?
如果從上面不清楚。我想支持在單個透視列中僅具有值的條目,例如name1_2009列。其他名稱和名稱2列必須設置爲NULL。 – Alex 2010-11-26 12:31:22