title: What does the pipe/veritcal bar character mean in TSQL?
body: <p>Google-fu is failing me on this one. Can anyone briefly explain what the following statement would do?:</p>
  
  <pre><code>UPDATE
      message WITH (ROWLOCK)
  SET
      message = message | 2
  </code></pre>
  
  <p>I found this in a trigger, and I am unable to find docs explaining what the | character does in a statement like this.</p>