MySQL에서 업데이트 쿼리를 구현하는 방법은 무엇입니까?

<?php
$link = mysqli_connect("localhost", "root", "", "Mydb"); 
  
if($link === false){ 
    die("ERROR: Could not connect. "  
                . mysqli_connect_error()); 
} 
  
$sql = "UPDATE data SET Age=&#39;28&#39; WHERE id=201"; 
if(mysqli_query($link, $sql)){ 
    echo "Record was updated successfully."; 
} else { 
    echo "ERROR: Could not able to execute $sql. "  
                            . mysqli_error($link); 
}  
mysqli_close($link); 
?>

<?php
$mysqli = new mysqli("localhost", "root", "", "Mydb"); 
  
if($mysqli === false){ 
    die("ERROR: Could not connect. " 
            . $mysqli->connect_error); 
} 
  
$sql = "UPDATE data SET Age=&#39;28&#39; WHERE id=201"; 
if($mysqli->query($sql) === true){ 
    echo "Records was updated successfully."; 
} else{ 
    echo "ERROR: Could not able to execute $sql. "  
                                        . $mysqli->error; 
} 
$mysqli->close(); 
?>

<?php
try{ 
    $pdo = new PDO("mysql:host=localhost; 
                    dbname=Mydb", "root", ""); 
    $pdo->setAttribute(PDO::ATTR_ERRMODE,  
                        PDO::ERRMODE_EXCEPTION); 
} catch(PDOException $e){ 
    die("ERROR: Could not connect. "  
                    . $e->getMessage()); 
} 
  
try{ 
    $sql = "UPDATE data SET Age=&#39;28&#39; WHERE id=201"; 
    $pdo->exec($sql); 
    echo "Records was updated successfully."; 
} catch(PDOException $e){ 
    die("ERROR: Could not able to execute $sql. " 
                                . $e->getMessage()); 
} 
unset($pdo); 
?>