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The RIGHT JOIN command returns all rows from the right table, and the matching records from the left table. The result is NULL from the left side, when there is no match
The RIGHT JOIN
command returns all rows from
the right table, and the matching records from the left table. The result is
NULL from the left side, when there is no match.
The following SQL will return all employees, and any orders they might have placed:
SELECT Orders.OrderID, Employees.LastName, Employees.FirstName
FROM Orders
RIGHT JOIN Employees ON Orders.EmployeeID = Employees.EmployeeID
ORDER BY Orders.OrderID;
RIGHT JOIN
keyword returns all records from the
right table (Employees), even if there are no matches in the left table
(Orders).