Warum wird der UPDATE-Befehl in der Datenbank nicht ausgeführt, obwohl er im Code vorhanden ist?

The UPDATE command in the database may not be executed due to various reasons such as incorrect SQL syntax, connection issues, or insufficient permissions. To solve this issue, you should first check the SQL query for any errors, ensure that the database connection is established properly, and verify that the user has the necessary permissions to perform the update operation. 

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

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

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// SQL query to update data in the database
$sql = "UPDATE table_name SET column1 = 'value1', column2 = 'value2' WHERE condition";

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

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

Keywords

UPDATE-Befehl Datenbank Code Ausführung Fehlermeldung

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