183. Customers Who Never Order

Suppose that a website contains two tables, the Customers table and theOrders table. Write a SQL query to find all customers who never order anything.

Table: Customers.

+----+-------+| Id | Name  |+----+-------+| 1  | Joe   || 2  | Henry || 3  | Sam   || 4  | Max   |+----+-------+

Table: Orders.

+----+------------+| Id | CustomerId |+----+------------+| 1  | 3          || 2  | 1          |+----+------------+

Using the above tables as example, return the following:

+-----------+| Customers |+-----------+| Henry     || Max       |+-----------+

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MySQL

# Write your MySQL query statement belowselect     cs.Name as Customersfrom    Customers csleft outer join    (        select            CustomerId        from             Orders        group by            CustomerId    ) oson    cs.Id = os.CustomerIdwhere    os.CustomerId is null;