title: SQL: Remove duplicates in pair query
body: <p>I have this query : </p>
  
  <pre><code>SELECT a.`name` "n1", b.`name` "n2"
      FROM    `Table` a, `Table` b
      WHERE   a.`nb` = b.`nb`
              AND a.`name` != b.`name`
  </code></pre>
  
  <p>It almost works as I want, I get this result : </p>
  
  <pre><code>---------------------------------
  | n1            | n2            |
  |--------------------------------
  | aa            | bb            |
  | bb            | aa            |
  ---------------------------------
  </code></pre>
  
  <p>I think you get the issue: i'd like no to have the duplicates I get reversed in this query. Is there a way?</p>