Computer Science · Database Management Systems
A retail company maintains two tables: Customers(CustID, CustName) and Orders(OrderID, CustID, OrderAmount). They want to view the total spending of each customer. Which SQL statement best achieves this?
- 1SELECT * FROM Customers, Orders WHERE OrderAmount > 0;
- 2SELECT CustName, OrderAmount FROM Customers NATURAL JOIN Orders;
- 3SELECT CustName, SUM(OrderAmount) FROM Customers JOIN Orders ON Customers.CustID = Orders.CustID GROUP BY CustName;✓
- 4SELECT CustName, SUM(OrderAmount) FROM Orders;
Correct answer
SELECT CustName, SUM(OrderAmount) FROM Customers JOIN Orders ON Customers.CustID = Orders.CustID GROUP BY CustName;
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