3차메뉴 쿼리적용하는 방법부탁드립니다..ㅠ

<div id="aside">            <dl>                <dt><h3><?php echo $me_gr_name ?></h3></dt>                <?php                $sql = " select * from {$g5['menu_table']} where me_code like '$me_gr_code%' and length(me_code) = '4' order by me_code ";                $result = sql_query($sql);                 for ($bi=0; $row=sql_fetch_array($result); $bi++) { // bi 는 board index                ?>                <dd><a href="<?php echo $row['me_link'] ?>"><?php echo $row['me_name']?></a></dd>                <?php } ?>            </dl>        </div>

$sql3 = " select *                            from {$g5['menu_table']}                            where me_use = '1'                              and length(me_code) = '6'                              and substring(me_code, 1, 4) = '{$row2['me_code']}'                            order by me_order, me_id ";                $result3 = sql_query($sql3);