Consider This Query:
SELECT [Order Details].OrderID,
c.CategoryName,
COUNT(c.CategoryID)
FROM [Order Details]
INNER JOIN Products p
ON p.Prod
WITH T
AS (SELECT [Order Details].OrderID,
c.CategoryName,
c.CategoryID
FROM [Order Details]
INNER JOIN Products p
ON p.ProductID = [Order Details].ProductID
INNER JOIN Categories c
ON c.CategoryID = p.CategoryID)
SELECT *
FROM T PIVOT ( COUNT (CategoryID) FOR CategoryName IN (
[Beverages],
[Condiments],
[Confections],
[Dairy Products],
[Grains/Cereals],
[Meat/Poultry],
[Produce],
[Seafood]) ) AS pvt
ORDER BY OrderID