Codeigniter query to mssql query

Question

How do i convert this line of code into a query which will be accepted by MSSQL Server 2012?

Im getting this error That happens when im trying to convert it into a query for mssql 时，我试图将其转换为mssql查询时会发生这种情况

      function login($username, $password) {



        $this -> db -> select();
        $this -> db -> from('tbl_user');
        $this -> db -> JOIN('tbl_assign_role', 'tbl_user.u_id = tbl_assign_role.tar_owner_id');
        $this -> db -> where('tbl_user.u_uname = ' . "'" . htmlspecialchars($username) . "'"); 
        $this -> db -> where('tbl_user.u_pword = ' . "'" . MD5($password) . "'"); 
        $this -> db -> where('tbl_user.is_active = 1'); 
        $this -> db -> limit(1);
        $query = $this -> db -> get();

        if($query -> num_rows() == 1)
        {
            return $query->result();
        }
        else
        {
            return false;
        }

    }

I change it into this

$query = "SELECT * FROM tbl_user
                  LEFT JOIN tbl_assign_role ON tbl_user.u_id = tbl_assign_role.tar_owner_id
                  WHERE tbl_user.u_name = '".$username."'
                  AND tbl_user.u_pword = '".MD5($password)."'
                  AND tbl_user.is_active = 1
                  FETCH NEXT 1 ROWS ONLY
                  ";

After i changed, that became the error.

It's working now. What I've done is

$query = "SELECT TOP 1 * FROM tbl_user 
        JOIN tbl_assign_role ON tbl_user.u_id = tbl_assign_role.tar_owner_id 
        WHERE tbl_user.u_uname = '".htmlspecialchars($username)."' 
        AND tbl_user.u_pword = '".MD5($password)."' 
        AND tbl_user.is_active = 1";

        $query = $this->db->query($query);

Answer 1

您好希望这对您有帮助...

"SELECT tbl_user.*,tbl_assign_role.* FROM tbl_user left join tbl_assign_role on tbl_assign_role.tar_owner_id = tbl_user.u_id where tbl_user.u_uname = '".htmlspecialchars($username)."' and tbl_user.u_pword ='".MD5($password)."' and tbl_user.is_active='1' limit 1";