Calling a stored procedure from CodeIgniter's Active Record class

Question

In my CI application setup to query a mssql database. I want to execute a stored procedure from active record. But I

Answer 1

I have added the following function to class CI_DB_mysqli_driver in /system/database/drivers/mysqli/mysqli_driver.php

    function free_db_resource()
    {
        while(mysqli_next_result($this->conn_id))
        {
            if($l_result = mysqli_store_result($this->conn_id))
            {
                mysqli_free_result($l_result);
            }
        }
    }

and use it after the procedure call

$this->db->free_db_resource();

Thanks to wework4web