TG: sql_for_qa/94

SQL для тестировщика

Дана таблица "orders" c колонками "order_id", "customer_id", "order_date" и "total_amount". Какой из следующих SQL запросов выведет общую сумму заказов в разрезе покупателей?

Anonymous Quiz

SELECT customer_id, COUNT(order_id) FROM orders GROUP BY customer_id;

SELECT customer_id, AVG(total_amount) FROM orders GROUP BY customer_id;

SELECT customer_id, MAX(total_amount) FROM orders GROUP BY customer_id;

SELECT customer_id, SUM(total_amount) FROM orders GROUP BY customer_id;

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Create: 2023-05-19
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