การแสดงผลข้อมูล ในกรณีที่เพิ่มข้อมูลมาใหม่ ในบางเรคคอร์ด แต่ผลลัพท์โชว์ในทุกเรคคอร์ด

while($row = mysql_fetch_array($objQuery)) { 
	?>

	<tr>
 	<td><?= $row['id_student']; ?></td>
 	<td><?= $row['Name']; ?></td>
 	
 	
 	<td><? if ($row[sex_s]=="1"){
  		echo "ชาย";  	
  		} elseif($row[sex_s]=="2"){
  		echo "หญิง."; 
  		}?>
 	</td>
<?
	mysql_connect("localhost","root","12345");
	mysql_select_db("db_screen");
	mysql_query("SET NAMES UTF8");
	$strSQL6 = "SELECT * FROM tb_parent";
	$objQuery6 = mysql_query($strSQL6) 
?>
<?
	$row2 = mysql_fetch_array($objQuery6)
	?>	
 	<td><?= $row2['id_parent']; ?></td>
 	<td><?= $row2['name_pa']; ?></td>Code (PHP)

?php
 	
	include ('config.php');
	$strSQL ="SELECT * FROM tb_students
			  WHERE id_student IN( SELECT id_student FROM tb_parent)";
	$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
	mysql_query("SET NAMES UTF8");		

	while($row = mysql_fetch_array($objQuery)) { 
	?>
	<tr>
 	<td><?= $row['id_student']; ?></td>
 	<td><?= $row['Name']; ?></td>
 	
 	<td><? if ($row[sex_s]=="1"){
  		echo "ชาย";  	
  		} elseif($row[sex_s]=="2"){
  		echo "หญิง."; 
  		}?>
  	
  	<td><?= $row['id_parent']; ?></td>
  		
 	<td><?= $row['name_pa']; ?></td>
 	</td>

include ('config.php');
	$strSQL ="SELECT * FROM tb_students a LEFT JOIN tb_parent b ON a.id_student = b.id_student ORDER BY a.id_student ASC";
	$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
	mysql_query("SET NAMES UTF8");		

	while($row = mysql_fetch_array($objQuery)) { 
	?>
	<tr>
 	<td><?= $row['id_student']; ?></td>
 	<td><?= $row['Name']; ?></td>
 	
 	<td><? if ($row[sex_s]=="1"){
  		echo "ชาย";  	
  		} elseif($row[sex_s]=="2"){
  		echo "หญิง."; 
  		}?>
  </td>
  	
  	<td><?= $row['id_parent']; ?></td>
  		
 	<td><?= $row['name_pa']; ?></td>
  <td>ปุ่มกดแก้ไข</td>
</tr>