title: How do I find repeating records In a SQL table
body: <p>I had a table with almost 20000 records<br/>
  with columns<br/></p>
  
  <pre><code>Id      SubjectId      UniqueId
  1        54            1
  1        58            2
  1        59            3
  1        60            4
  2        54            5
  2        58            6
  2        59            7
  2        60            8
  2        60            9
  3        54            10
  3        70            11
  </code></pre>
  
  <p>I want to Select those Records Which Are repeating<br/>
  like<br/>
  result is Like</p>
  
  <pre><code>Id      SubjectId      UniqueId
   2        60            8
   2        60            9
   7        54            15
   7        54            18
   7        54            30
  </code></pre>
  
  <p>Help Me how could I do this</p>