title: Suppress duplicated entries in a table
body: <p>How do i suppress duplicate entries in both classical (write) and ALV report? I was given a task to write a simple report with this criteria.
  I tried to google but could not succeed with any of their solutions and need help. Below is the expected result.</p>
  
  <p>original report:</p>
  
  <pre><code>--------------------------------------
  |Sales Org | Dist.Channel | Division | 
  --------------------------------------
  |1000      |10            |00        |
  |1000      |10            |00        |
  |1000      |10            |00        |
  |1020      |22            |00        |
  |1020      |22            |00        |
  --------------------------------------
  </code></pre>
  
  <p>expected output:</p>
  
  <pre><code>--------------------------------------
  |Sales Org | Dist.Channel | Division |
  --------------------------------------
  |1000      |10            |00        |
  |          |              |          |
  |          |              |          |
  |1020      |22            |00        |
  |          |              |          |
  --------------------------------------
  </code></pre>
  
  <p>need help.Thank you.</p>