oracle8.1.6 begin cm_form_widget.register_attribute_widget( content_type => :content_type, attribute_name => :attribute_name, widget => :widget, is_required => :is_required ); end; update cm_attribute_widgets set is_required = case when is_required = 't' then 'f' else 't' end where attribute_id = :attribute_id and widget = :widget