Escape single and Double quotes while insert or update

          $name = "all's name start with \"S\"";
    Using escapeSimple()
          $db->query("update pp_applications set planscr_remark = '".$db->escapeSimple($name)."' where sbc_no = '$sbcno'");
    Using quoteSmart()
          $db->query("update pp_applications set planscr_remark = ".$db->quoteSmart($name)." where sbc_no = '$sbcno'");
   
    Difference is that second one automatically covered with single quote .