JOIN 2 ตาราง แบบ Loop ต้องการไม่ให้ข้อมูลซ้ำครับ (PHP, MySQL)

         <?php
		 
		 include('config.inc.php');
		 $se = "select * from tb_gallery_name AS gn LEFT JOIN tb_gallery AS gl ON gn.id=gl.idname  where gn.status=1 && gl.gstatus=1  limit 0,20 ";
		 $ql = mysql_query($se);
		 while($rs = mysql_fetch_array($ql))
		  {
		  		$gid = trim($rs['gid']);
				$gimg = trim($rs['gimg']);
			echo 	$ti = $rs['title'];
			?>
			<?php
		        echo "<li>";
			
			echo	'<a href="images/photos/all_view/'.$gimg.' " title="Test">
					<img src="images/photos/all_view/'.$gimg.' " width="125" alt="" /></a>';
			echo "</li>";
			
		  }
		  
		  ?>