title: multiple database connection in CI
body: <p>can i connection with multiple database
  main connections is from database.php</p>
  
  <p>but the another one in from the model
  and i want to switch between it</p>
  
  <p>like this</p>
  
  <pre><code>        $config['remote']['hostname'] = 'localhost';
          $config['remote']['username'] = 'root';
          $config['remote']['password'] = '';
          $config['remote']['database'] = 'countries';
          $config['remote']['dbdriver'] = 'mysql';
          $config['remote']['dbprefix'] = '';
          $config['remote']['pconnect'] = TRUE;
          $config['remote']['db_debug'] = TRUE;
          $config['remote']['cache_on'] = FALSE;
          $config['remote']['cachedir'] = '';
          $config['remote']['char_set'] = 'utf8';
          $config['remote']['dbcollat'] = 'utf8_general_ci';
          $config['remote']['swap_pre'] = '';
          $config['remote']['autoinit'] = TRUE;
          $config['remote']['stricton'] = FALSE;
  
          $this-&gt;load-&gt;database($config);
  
          $this-&gt;load-&gt;database('remote', TRUE);
  </code></pre>