Pivot Table

This seems to be a popular question and quite a few chaps have recently asked me about this.

A Pivot Table can automatically sort, count, and total the data stored in one table or spreadsheet and create a second table displaying the summarized data. The PIVOT operator turns the values of a specified column into column names, effectively rotating a table. Here is an example;

USE AdventureWorks
GO
SELECT [CA], [AZ], [TX]
FROM
(
SELECT sp.StateProvinceCode
FROM Person.Address a
INNER JOIN Person.StateProvince sp
ON a.StateProvinceID = sp.StateProvinceID
) p
PIVOT
(
COUNT (StateProvinceCode)
FOR StateProvinceCode
IN ([CA], [AZ], [TX])
) AS Pvt