WooCommerce Software Licences on My Account page

functions.php

<?php
  add_action( 'woocommerce_before_my_account', 'woocommerce_customer_licenses_my_account' );
  function woocommerce_customer_licenses_my_account() {
    global $wpdb;
  	$current_user = wp_get_current_user();
  	$licence_keys = $wpdb->get_results(
  		$wpdb->prepare(
  			"
  			SELECT * FROM {$wpdb->prefix}woocommerce_software_licences
  			WHERE activation_email = %s
  			",
  			$current_user->user_email
  		)
  	);
  	echo "<h2>Software Licenses</h2>";
  	foreach ( $licence_keys as $license_key ) {
  		echo $license_key->licence_key;
  	}
  }
?>