Question: Consider the following queries: 1 . SELECT * FROM invoice WHERE customer _ id IN ( SELECT customer _ id FROM customer WHERE first _

Consider the following queries:
1. SELECT * FROM invoice
WHERE customer_id IN
(SELECT customer_id FROM customer
WHERE first_name like 'J%');
2. SELECT invoice.* FROM invoice
INNER JOIN customer
ON customer.customer_id = invoice.customer_id
WHERE first_name like 'J%';
Which of these would be the most efficient?

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