จะเพิ่มข้อมูลลงในฐานข้อมูล SQL ไม่สามารถเพิ่มข้อมูลหลายข้อมูลมากๆได้ ควรทำอย่างไร มีตัวอย่างโคดครับ เเละถ้าเเก้ได้ขอตัวอย่างโคดครับ

<meta charset="UTF-8" />
<?php
require_once('../Connections/avwatpa.php');
////// เเก้
$code =$_POST['code'];
$code_stu = $_POST['code_stu'];
$date_birth = $_POST['password'];
$blood_type = $_POST['blood_type'];
$prefix =$_POST['prefix'];
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$email = $_POST['email'];
$pro1 = $_POST['pro1'];
$phone = $_POST['phone'];
$mobile = $_POST['mobile'];
$nationality1 = $_POST['nationality1'];
$nationality2 = $_POST['nationality2'];
$religion = $_POST['religion'];
$address = $_POST['address'];
$village = $_POST['village'];
$street = $_POST['street'];
$province = $_POST['province'];
$amphur = $_POST['amphur'];
$tambon = $_POST['tambon'];
$zipcode = $_POST['zipcode'];
$f_name = $_POST['f_name'];
$f_occupation = $_POST['f_occupation'];
$f_workplace = $_POST['f_workplace'];
$f_phone = $_POST['f_phone'];
$f_mobile = $_POST['f_mobile'];
$m_name = $_POST['m_name'];
$m_occupation = $_POST['m_occupation'];
$m_workplace = $_POST['m_workplace'];
$m_phone = $_POST['m_phone'];
$m_mobile = $_POST['m_mobile'];
$p_name = $_POST['p_name'];
$p_occupation = $_POST['p_occupation'];
$p_workplace = $_POST['p_workplace'];
$p_phone = $_POST['p_phone'];
$p_mobile = $_POST['p_mobile'];
$grade = $_POST['grade'];
$program = $_POST['program'];
$nickname = $_POST['nickname'];
$stu_pic ="watpa.jpg";
$reason=$_POST['reason'];
$graduation=$_POST['graduation'];


////// เเก้


////// เเก้ ////////////////////////////////////////////////////////////////////////////////
$sql ="INSERT INTO student_data set 
code='".$code."'
,date_birth='".$date_birth."'
,prefix='".$prefix."'
,fname='".$fname."'
,lname='".$lname."'
,email='".$email."'
,phone='".$phone."'
,mobile='".$mobile."'
,nationality1='".$nationality1."'
,nationality2='".$nationality2."'
,religion='".$religion."'
,village='".$village."'
,street='".$street."'
,province='".$province."'
,street='".$street."'
,amphur='".$amphur."'
,tambon='".$tambon."'
,zipcode='".$zipcode."' ";

	
		$result = mysql_db_query($database_avwatpa,$sql) or die("Error in query : $sql".mysql_error());
                  mysql_close();	

		
		
		if($result){
			echo "<script>";
			echo "alert('ข้อมูลของท่านได้ทำการบันทึกข้อมูลเเล้ว ขณะนี้ระบบจะนำกลับไปหน้าเเรกเพื่อไปกรอกข้อมูลรับสมัคร !!!');";
			echo "window.location ='index.php'; ";
			echo "</script>";
		} else {
		
		}


?>