Select Data table by select query CodeIgniter

Hi, Guys you can fetch data frome database "sql" very simple steps just follow you.

 'Controller' 

public function about_us(){
$data["result"]=$this->courses_model->fetch_data();
//print_r($data['result']->field); die();
//$this->load->model('Test');
$this->load->view('about-us',$data);
}

*

/////////////course_model

public function fetch_data()
{
return $this->db->select('field')->from('about')->get()->row();
//$query=$this->db->get("about")->row();
//$query=$this->db->query("SELECT * FROM about");
//$result = mysql_query("SELECT * FROM about ")or die(mysql_error());
//$query = mysql_fetch_array( $result );
//print_r($query); die();
return $query;
//WHERE last_name='Hart'

}


ablut-us (Html)

<section class="sec_1127024">
      <div class="container com-sp pad-bot-70">
        <div class="row">

        <div class="col-md-12">
            <div class="col-md-12">
              <h2 class="hd_112824">About Us</h2>


                <?php
                      echo $result->field;
               
                 ?>
           
              <a class="btn_112124" href="<?php echo base_url();?>Welcome/contact">Get in touch</a>
            </div>
          <!--   <div class="col-md-4 text-right">
              <img src="<?php echo base_url();?>assets/images/temp/kjhgfsdgudsgdhghd.png" class="max-width-sty">
            </div> -->
          </div>

       
        </div>
      </div>
    </section>