Interesante self-join
SELECT c2.name FROM customer c, customer c2 WHERE c.customer_id = 648 AND c.zipcode = c2.zipcode; |
Todos los clientes con el mismo zip code
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Interesante self-join
SELECT c2.name FROM customer c, customer c2 WHERE c.customer_id = 648 AND c.zipcode = c2.zipcode; |