how to delete duplicate record in tables ?

Question

I have a emp table.It`s have 1000 records.

Empid       Name       Department
1            AA        IT 
2            AB        SALES 
3            AA        IT
1            AA        IT 
2            AB        SALES 
4            CC        MR
1            AA        IT


I want to delete duplicate record.

Table take only one record of every person

Output of record like
Empid       Name       Department
1            AA        IT 
2            AB        SALES 
3            AA        IT
4            CC        MR