SQL UNIQUE/ DISTINCT

Write SQL to fetch UNIQUE records.

The SELECT DISTINCT statement is used to return only DISTINCT / UNIQUE values

Example

Table: Employee                          
+----+-------+--------+--------------+    
| Id | Name  | Salary | DepartmentId |    
+----+-------+--------+--------------+    
1  | Ram   | 85000  | 1            |    
2  | Henry | 80000  | 2            |    
3  | Sam   | 60000  | 2            |    
4  | Shyam | 60000  | 1            |
5  | Geeta | 90000  | 1            |
6  | Sheet | 90000  | 1            |
7  | Leela | 80000  | 1            |
8  | Geeta | 70000  | 1            |
+----+-------+--------+--------------+

Approach: Select unique employee

Mysql: 


SELECT DISTINCT NAME FROM EMPLOYEE

Oracle: 


SELECT DISTINCT NAME FROM EMPLOYEE

Result: 

+--------+
| NAME |
+--------+
Ram   |
| Henry |
| Sam   |
| Shyam |
| Geeta |
| Sheeta |
| Leela  |
+--------+


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