In another page I explained the format of the URL.
Parameter number 6 allowed you to reset the cache for specific pages. Sometimes however, there is a need to reset the cache for the whole application. This can also be done using this parameter with the following two options
Clears cache for all pages and all application-level items in the current application and removes sort preferences for the current user.
Achieves the same result as the APP keyword, but clears items associated with all applications that have been used in the current session.
There is also a way to reset the cache using PL/SQL. The following code would clear the cache of application 100 for the current session
and the following code would clear the cache of page 100