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You have a Microsoft SQL Server database that contains tables named Customers and Orders. The tables are related by a column named CustomerID. You need to create a query that meets the following requirements:1. Returns the CustomerName for all customers and the OrderDate for any orders that they have placed. 2. Results must include customers who have not placed any orders. Which Transact-SQL query should you use?

Question

You have a Microsoft SQL Server database that contains tables named Customers and Orders. The tables are related by a column named CustomerID. You need to create a query that meets the following requirements:1. Returns the CustomerName for all customers and the OrderDate for any orders that they have placed. 2. Results must include customers who have not placed any orders. Which Transact-SQL query should you use?

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Solution

To meet the given requirements, you can use a LEFT JOIN to combine the Customers and Orders tables. This will include all customers, even those who have not placed any orders. The query should be as follows:

SELECT Customers.CustomerName, Orders.OrderDate FROM Customers LEFT JOIN Orders ON Customers.CustomerID = Orders.CustomerID

This query will return the CustomerName for all customers and the OrderDate for any orders they have placed. It will also include customers who have not placed any orders.

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