dan81989/right-join-alt.sql

Created May 25, 2016 18:30

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Why would such a right join be useful? Simply adding a “where first_name is NULL” line to our SQL query returns a list of all orders for which we failed to record information about the customers who placed them:

Raw

right-join-alt.sql

	select first_name, last_name, order_date, order_amount
	from customers c
	right join orders o
	on c.customer_id = o.customer_id
	where first_name is NULL

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