How to use Oracle APEX with Oracle12c - Beginner

Hi. I have been using for months Oracle Application Express thanks to the online workspace on https://apex.oracle.com/i/index.html.
Now, I want to create my production environment. I have installed Oracle Database 12c on a virtual machine (Oracle Virtual Box) based on Windows Server 2008 R2 (64 bit) o.s.
I have created a new database and, during this process, I have selected only "Oracle Application Express" as database's option. Now, I don't know how to use APEX, how to configure the Listener and whatever I need to let the users may use my APEX's applications. Thank you very much for any help. Please consider that I am a beginner and I don't know how to master the administrative-side of APEX.
Saverio

Hi Neruda from Italy,
Neruda from Italy wrote:
Thank you very much. Anyway, If I installed Oracle11g then the list of instructions to follow in order to configure Oracle Apex is the following?
Installing and Configuring Oracle Application Express and BI Publisher in Oracle Database 11g Release 2
     By Oracle 11g, do you mean Oracle Database 11g Express Edition?
     The list of instructions are correct in a way but the OBE is somewhat old (Instead you should always go for Oracle Documentation).
     Following are the installation guides for APEX versions:
APEX 5.0 - https://docs.oracle.com/cd/E59726_01/install.50/e39144/toc.htm
APEX 4.2 - http://docs.oracle.com/cd/E37097_01/install.42/e35123/toc.htm
     As you are going for configuring Embedded PL/SQL Gateway (as given in the OBE above) here are the detailed steps to install APEX and configure EPG:
APEX 5.0 - https://docs.oracle.com/cd/E59726_01/install.50/e39144/epg.htm#HTMIG386 (skip the steps for Oracle Database 12c)
APEX 4.2 - http://docs.oracle.com/cd/E37097_01/install.42/e35123/otn_install.htm#HTMIG389
     If you deem that your question is answered, then please close the thread by marking the appropriate replies helpful/correct.
Regards,
Kiran

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