How to delete duplicate records in SQL? : <p>This my original table:</p>

<p><a href="https://i.stack.imgur.com/zpd4S.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zpd4S.png" alt="enter image description here"></a></p>

<p>Intended table:</p>

<p><a href="https://i.stack.imgur.com/0m2Lt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0m2Lt.png" alt="enter image description here"></a></p>

<p>I can't add a new column to table. </p>
