How to check ORDS version from APEX builder

Probably somebody blogged about this, but I couldn't find it.

So, if you need to check ORDS version and you only have access to APEX Builder you can do it by running following SQL query in SQL Workshop > SQL Commands:

select owa_util.get_cgi_env('APEX_LISTENER_VERSION') 
  from dual;

If you need to check other environment variables you can do it by running following PL/SQL block:

begin 
  owa_util.print_cgi_env;
end;

Edit no. 1 (thanks to Robert Schafer):

You can also query:

select ords.installed_version 
  from dual

Edit no. 2 (thanks to Christian Neumuller)

You can also open Help > About dialog in APEX to see the most important CGI variables and some additional info about APEX and database.

Tested on APEX 5.0.4.00.12 and ORDS 3.0.*