title: Using % for host when creating a MySQL user
body: <p>My MySQL database needs two users: appuser and support.<br>
  One of the application developers insists that I create four accounts for these users:</p>
  
  <pre><code>appuser@'%'
  appuser@'localhost'
  support@'%'
  support@'localhost'
  </code></pre>
  
  <p>For the life of me I can't figure out why he thinks we need this.  Wouldn't using the wildcard as the host take care of the 'localhost'?</p>
  
  <p>Any ideas?</p>
  
  <p>(Using MySQL 5.5 here)</p>