title: Update a column for all the rows
body: <p>Table name: <code>Employee</code><br>
  Column Name: <code>Emp_name</code></p>
  
  <p><code>Emp_name</code> has this contents:</p>
  
  <pre><code>xx\rama,
  xx\rajesh,
  xx\vignesh
  </code></pre>
  
  <p>I have to update the table Employee by removing <code>xx\</code> from all the rows of column <code>Emp_name</code>.</p>
  
  <p>Please help me.</p>