title: Three columns have same values under one table how to fetch values which are available in all columns
body: <p>Considering the following table:</p>
  
  <pre><code>Phone1     Phone2   Phone3
  123458    25689     8969860
  25966     25966     123458
  Null      123458     25966
  </code></pre>
  
  <p>I want to fetch record of <code>Phone1</code> values which are available in other phones columns.</p>