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9 lines
463 B
MySQL
9 lines
463 B
MySQL
5 years ago
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/*Write a SQL statement that shorts out the customer and their grade who made an order. Each of the customers
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must have a grade and served by at least a salesman, who belongs to a city.*/
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SELECT customer.cust_name AS "Customer",
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customer.grade AS "Grade"
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FROM orders, salesman, customer
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WHERE orders.customer_id = customer.customer_id
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AND orders.salesman_id = salesman.salesman_id
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AND salesman.city IS NOT NULL
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AND customer.grade IS NOT NULL;
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