Find all unique countries where customers are located. DISTINCT eliminates duplicate values.
Write a query to list all unique customer countries.
| Column | Type |
|---|---|
| CustomerId | INTEGER (Primary Key) |
| FirstName | TEXT |
| LastName | TEXT |
| Company | TEXT |
| Address | TEXT |
| City | TEXT |
| State | TEXT |
| Country | TEXT |
| PostalCode | TEXT |
| Phone | TEXT |
| Fax | TEXT |
| TEXT | |
| SupportRepId | INTEGER (Foreign Key → Employee.EmployeeId) |
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Run your code to see the result here.