Why is it recommended to avoid using the 'alter' keyword in SQL queries in PHP?

Using the 'alter' keyword in SQL queries in PHP is not recommended because it can potentially cause data loss or corruption if not used correctly. It is safer to use the 'update' keyword to modify existing data in a table without risking unintended consequences. 

<?php
// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = new mysqli($servername, $username, $password, $dbname);

// Update existing data in a table
$sql = "UPDATE table_name SET column_name = 'new_value' WHERE condition";

if ($conn->query($sql) === TRUE) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . $conn->error;
}

// Close the database connection
$conn->close();
?>

Keywords

SQL queries alter keyword database manipulation security vulnerability SQL injection

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