title: Alphabetical order works with lastname but not with firstname
body: <p>I have a mysql table for our customers. It works alphabetically with last names, but not with firstnames, because they are in different columns.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>SELECT id, firstname, lastname, address From customers Order by lastname
  </code></pre>
  
  <p>This is the result now:</p>
  
  <pre><code>lastname | firstname | address &lt;br&gt;
  Ford     | Jhon      | Dallas
  Bush     | Emil      | Orlando (This should be after the next one [Brian])
  Bush     | Brian     | Los Angeles
  </code></pre>
  
  <p>How could I have Lastnames + firstnames in order together?</p>