function wc_update_340_last_active() {
	global $wpdb;
	// @codingStandardsIgnoreStart.
	$wpdb->query(
		$wpdb->prepare( "
			INSERT INTO {$wpdb->usermeta} (user_id, meta_key, meta_value)
			SELECT DISTINCT users.ID, 'wc_last_active', %s
			FROM {$wpdb->users} as users
			LEFT OUTER JOIN {$wpdb->usermeta} AS usermeta ON users.ID = usermeta.user_id AND usermeta.meta_key = 'wc_last_active'
			WHERE usermeta.meta_value IS NULL
			",
			(string) strtotime( date( 'Y-m-d', current_time( 'timestamp', true ) ) )
		)
	);
	// @codingStandardsIgnoreEnd.
}