title: Connect to IBM DB2 from Codeigniter
body: <p>I have never worked with DB2 before. I am trying to connect from codeigniter. I have used the following settings in my database config file:</p>
  
  <pre><code>$db['default']['hostname'] = 'ipAddress';
  $db['default']['port'] = 'portNumber';
  $db['default']['username'] = 'uname';
  $db['default']['password'] = 'pword';
  $db['default']['database'] = 'myDBName';
  //$db['default']['dbdriver'] = 'pdo';
  $db['default']['dbdriver'] = 'odbc';
  $db['default']['dbprefix'] = '';
  $db['default']['pconnect'] = FALSE;
  $db['default']['db_debug'] = TRUE;
  $db['default']['cache_on'] = FALSE;
  $db['default']['cachedir'] = '';
  $db['default']['char_set'] = 'utf8';
  $db['default']['dbcollat'] = 'utf8_general_ci';
  $db['default']['swap_pre'] = '';
  $db['default']['autoinit'] = TRUE;
  $db['default']['stricton'] = FALSE;
  </code></pre>
  
  <p>and it throws the following error:</p>
  
  <pre><code>Unable to connect to your database server using the provided settings.
  Filename: C:\xampp\htdocs\archive\system\database\DB_driver.php
  </code></pre>
  
  <p>Again, I am totally new to DB2, so in case I need to install anything extra (I assume the driver is already included in my latest CI download) or I need to define a dsn (please let me know how to do that if i require that) please do let me know, will very much appreciate your help.</p>