How to remove the lines that have the employee name double?

Hello world

Greetings

I'm using oracle 11g.

Suppose I have a table and I want to delete lines that have the name used twice?

So given below is my table so I only delete lines that have more than one 'Ram' and 'Dilip' ename.

How to do this?

EmpID Ename salary Commission depnto
101RAM50004531
102RAM60007652
103Sisi34568763
104Dilip76566754
105Mohan98787675
106Dilip56469876
107Ganesh98234557

You can use a simple code as follows

Delete From EMP

Where rowid! = (select min (rowid) of the group by Ename EMP);

For preserved older values using 'min (rowid)'

and for the most recent values required use "max (rowid)"

Thank you.

Tags: Database

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