SQL command for copy value in column with same id : <br>
i need help to create the right SQL command.<br>
As you can see in attachment ,<br>
i need to copy string from column value with <strong>attribute_id 78</strong> in column value with <strong>attribute_id 77</strong> WHERE the <strong>entity_id</strong> is the same.

can anyone help me write the right code?
Thanks in advance

[screenshot sql tabble][1]


  [1]: https://i.stack.imgur.com/alRJA.jpg