SQL Server 2008 R2的樞軸

Question

是否有可能以提供實施例：

1. 基本：具有預定義
數據和列
2. 更先進：隨着動態數據和列預先定義
3. 專家用法：帶動態數據和動態列

謝謝

Answer 1

1. 基本例子：

   USE AdventureWorks2008R2; GO SELECT DaysToManufacture, AVG(StandardCost) AS AverageCost FROM Production.Product GROUP BY DaysToManufacture;

2. 更高級的例子

   -- Pivot table with one row and five columns SELECT 'AverageCost' AS Cost_Sorted_By_Production_Days, [0], [1], [2], [3], [4] FROM (SELECT DaysToManufacture, StandardCost FROM Production.Product) AS SourceTable PIVOT ( AVG(StandardCost) FOR DaysToManufacture IN ([0], [1], [2], [3], [4]) ) AS PivotTable;

3. 專家舉例：

   USE AdventureWorks2008R2; GO SELECT VendorID, [250] AS Emp1, [251] AS Emp2, [256] AS Emp3, [257] AS Emp4, [260] AS Emp5 FROM (SELECT PurchaseOrderID, EmployeeID, VendorID FROM Purchasing.PurchaseOrderHeader) p PIVOT ( COUNT (PurchaseOrderID) FOR EmployeeID IN ([250], [251], [256], [257], [260]) ) AS pvt ORDER BY pvt.VendorID;

希望它可以幫助