Table Alias & CTE Naming Conflict in MERGE (Exam 70-461)

The following T-SQL segment is from Exam 70-461 Training Kit, "Using the MERGE statement" (page 392 - may not be correct):

WITH SRC AS(
SELECT * FROM Sales.Orders
WHERE ShipCountry = N'Norway'
)
MERGE INTO Sales.MyOrders AS TGT
USING Sales.Order AS SRC
ON SRC.OrderID = TGT.OrderID
WHEN MATCHED  AND ( TGT.CustID <> SRC.CustID
                  ....) THEN UPDATE
SET TGT.CustID = SRC.CustID ......
WHEN NOT MATCHED THEN INSERT
VALUES (SRC.OrderID,.....)

I find very confusing that the CTE is named "SRC"  and the table alias also for the MERGE source.

I would not use confusing names/aliases in production code or in training books.

Am I mistaken? Am I missing something? Thanks.

Kalman Toth Database & OLAP Architect sqlusa.com
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