错误现象:
解决方法:
if (wnd = 'MAIN') then
app_window.close_first_window;
elsif (wnd = 'QUERY_FIND') then
--defer relations
--close related windows
app_window.close_first_window;
elsif (wnd = 'SUMMARY') then
--defer relations
--close related windows
app_window.close_first_window;
end if;