Customers Who Never Order

Suppose that a website contains two tables, the Customers table, and the Orders table. 

Write a SQL query to find all customers who never order anything.

Example 1:

Table: Customers      Table: Orders
+----+-------+      +----+------------+
| Id | Name  |      | Id | CustomerId |
+----+-------+      +----+------------+
| 1  | Ram   |      | 1  | 3          |
| 2  | Shyam |      | 2  | 1          |
| 3  | Sheeta|      +----+------------+
| 4  | Geeta |
+----+-------+

Output: Customers Who never order

+-----------+
| Customers |
+-----------+
| Shyam     |
| Geeta     |
+-----------+

Approach:

Mysql

select name as Customers  
from Customers where id not in (select CustomerId  from Orders);

Oracle

select name as Customers  
from Customers where id not in (select CustomerId  from Orders);