2024年5月21日 星期二

PIVOT TABLE

 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;