Configuring the HTTPS Port for EM Database Express 12c
bash-4.1$ ./sqlplus /nolog
SQL*Plus: Release 12.1.0.1.0 Production on Thu Sep 5 22:28:38 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
SQL> conn / as sysdba
Connected.
SQL> select dbms_xdb_config.gethttpsport() from dual;
DBMS_XDB_CONFIG.GETHTTPSPORT()
---------------------------------------------------------------
SQL> exec dbms_xdb_config.sethttpsport(5501);
PL/SQL procedure successfully completed.
SQL> select dbms_xdb_config.gethttpsport from dual;
GETHTTPSPORT
--------------------------
5501
