Oracle Object Types vs. Table Fields

Question

Hello, all.
I`m totally new to Oracle, and I am facing a very hard problem for me, and I would like to ask your help.
I've been working on a project which uses Oracle Object Types, from a database of a legacy system.
I did not know Oracle Objects until 5 minutes ago, so sorry If I say something stupid:
Per my understanding, a Oracle Object Type can be formed by fields like myField varchar(200)... and fields from an existing table or view.
I have a lot of objects on my system and I need to map each field and its respective table or view that compose each object.
Does anyone have a query for that? I think it should be common, but I could not find anything at google (maybe I don`t which terms use to find...)
I would be very thankful if somebody could help (save) me.
Thanks in advance.
Paulo

Answer 1

First, it would help if you post what you object types look like.
I'm assuming they may look something like this:
SQL> create TYPE emp_type AS OBJECT
  2    (emp_id   NUMBER,
  3     name VARCHAR2(20));
  4  /
Type created.
SQL> create TYPE emp_tab IS TABLE OF emp_type;
  2  /
Type created.
SQL> create or replace package emp_test as
  2  procedure get_emps;
  3  end emp_test ;
  4  /
Package created.
SQL> create or replace package body emp_test as
  2    employees emp_tab := emp_tab();
  3    procedure get_emps as
  4      g_rc sys_refcursor;
  5  BEGIN
  6    employees.EXTEND(2);
  7    employees(1) := emp_type (1, 'John Smith');
  8    employees(2) := emp_type (2, 'William Jones');
  9    OPEN g_rc FOR
10    SELECT * FROM TABLE (CAST (employees AS emp_tab));
11  END get_emps ;
12  end emp_test ;
13  /
Package body created.