codeigniter add N in sql Query INSERT unicode text

I am working with codeigniter / SQL. Where I want to insert unicode string with ‘N’ Prefix the insert. How can I achieve it in regular insert.

Regular Code:

$data = array(
   'title' => 'My title' ,
   'name' => 'My Name' ,
   'data' => 'My data'
);

$this->db->insert('mytable', $data); 

INSERT Trying to Achieve:

INSERT INTO mytable (title, name, data)
VALUES ('My title','My Name',N'My data');

Is there any way to achive the above insert instead of manually writing the Query.?

Answer

This is the simplest way to do it.

$data = array(
   'title' => 'My title' ,
   'name' => 'My Name' ,
   'data' => 'N'.'My data' 
);

$this->db->insert('mytable', $data); 

Or, if the prefix needs to more dynamic do this

$pre = foo(bar);
$data = array(
   'title' => 'My title' ,
   'name' => 'My Name' ,
   'data' => $pre.'My data' 
);

$this->db->insert('mytable', $data);