create or replace type UFD_TYP_ASV_ADDRESS as object
(
  -- Attributes
  country char(3),
  post_index char(10),
  region char(50),
  -- Member functions and procedures
  member function set_address/*(new_country in char, new_post_index in char, new_region in char)*/ return UFD_TYP_ASV_ADDRESS
)
/
create or replace type body UFD_TYP_ASV_ADDRESS is
  -- Member procedures and functions
  member function set_address /*(new_country in char, new_post_index in char, new_region in char)*/ return UFD_TYP_ASV_ADDRESS is
    address UFD_TYP_ASV_ADDRESS := self; -- initialize to "current" object
  begin
    address.country := 'RU';--new_country;
    address.post_index := '123456';--new_post_index;
    address.region := 'Perm';--new_region;
    return address;
  end;
end;

create or replace package UFD_PKG_ASV is
  --тип данных строки таблицы INV (клиенты)
  type rowINV is record
  (client_id bkcli.cli%type -- id клиента
  ,surname bkcli.nom%type -- Фамилия
  ,name bkcli.pre%type -- Имя
  ,patronymic bkcli.midname%type -- Отчество
  ,birthday bkcli.dna%type -- Дата рождения
  ,adr_reg UFD_TYP_ASV_ADDRESS -- Адрес регистрации
  );
  --тип данных таблицы из строк rowINV
  type tblINV is table of rowINV;
  --функция INV
  function INV
  (prmReportDate in date default null -- Отчетная дата (например, 01/04/2017)
  )
  return tblINV
  pipelined;
end UFD_PKG_ASV;
/
create or replace package body UFD_PKG_ASV is
  --функция INV
  function INV
  (prmReportDate in date default null -- Отчетная дата (например, 01/04/2017)
  )
  return tblINV
  pipelined
  is
    currentRow rowINV;
    date1 date;
  begin
    date1 := coalesce(prmReportDate, current_date);
    for currentRow in (
    select distinct
           cl.cli as client_id
          ,trim(cl.nom) as surname
          ,trim(cl.pre) as name
          ,trim(cl.midname) as patronymic
          ,cl.dna as birthday
          ,ufd_typ_asv_address.set_address as adr_reg -- Error: PL/SQL: ORA-00904: "UFD_TYP_ASV_ADDRESS"."SET_ADDRESS": invalid identifier
      from bkcli cl
    )
    loop
      pipe row (currentRow);
    end loop;
  end;
end UFD_PKG_ASV;

,ufd_typ_asv_address.set_address 

select ufd_typ_asv_address.set_address from dual; -- Результат ORA-00904: "UFD_TYP_ASV_ADDRESS"."SET_ADDRESS": invalid identifier

select ufd_typ_asv_address.set_address() from dual; -- Результат ORA-06553: PLS-306: wrong number or types of arguments in call to "SET_ADDRESS"

create or replace type UFD_TYP_ASV_ADDRESS as object
(
  -- Attributes
  country char(3),
  post_index char(10),
  region char(50),
  -- Member functions and procedures
  member function set_address(new_country in char) return UFD_TYP_ASV_ADDRESS
)
/
create or replace type body UFD_TYP_ASV_ADDRESS is
  -- Member procedures and functions
  member function set_address (new_country in char) return UFD_TYP_ASV_ADDRESS is
    address UFD_TYP_ASV_ADDRESS := self; -- initialize to "current" object
  begin
    address.country := new_country;
    address.post_index := '123456';--new_post_index;
    address.region := 'Perm';--new_region;
    return address;
  end;
end;

select ufd_typ_asv_address.set_address('RU') from dual; -- Результат ORA-06553: PLS-306: wrong number or types of arguments in call to "SET_ADDRESS"