Mytestsnippet

global $wpdb;

$table_name = $wpdb->prefix . 'myfirst'; // Use prefix for security

$results = $wpdb->get_results("SELECT * FROM $table_name");

if ( ! empty( $results ) ) {

    echo '<table>';

    foreach ( $results as $row ) {

        echo '<tr>';

        echo '<td>' . esc_html( $row->id ) . '</td>';

        echo '<td>' . esc_html( $row->description ) . '</td>';

        echo '</tr>';

    }

    echo '</table>';

} else {

    echo 'No data found.';

}