title: subtract the contents of one column from another columns in each row
body: <p>I have a big MySQL table and I want to change the <code>Description</code> column.</p>
  
  <p>I want to delete the beginning of the every cell in each row that matches the value in the <code>Name</code> column, while the rest of the cell remains the same.</p>
  
  <p>Please help.
  <img src="https://i.stack.imgur.com/shOvy.jpg" alt="enter image description here"></p>