Connected to Oracle Database 18c Standard Edition 2 Release 18.0.0.0.0 
Connected as system@TEST

SQL> @C:\_work\1.sql

Type dropped


Function dropped


Type created


Function created


Search: [Sapiens Sapiens]

PL/SQL procedure successfully completed


SQL> @C:\_work\2.sql

Function dropped


Type dropped


Type created


Warning: Function created with compilation errors

begin
  dbms_output.put_line('Search: ['||fu1('search')||']');
end;

ORA-06550: line 2, column 37:
PLS-00905: object SYSTEM.FU1 is invalid
ORA-06550: line 2, column 3:
PL/SQL: Statement ignored

SQL> host type c:\_work\2.sql
drop function fu1;
drop type "T_ classification";
CREATE TYPE "T_ classification" AS OBJECT
(
TYPES VARCHAR2(250), --тип
CLASS VARCHAR2(250), --класс
UNIT VARCHAR2(250), --отряд
FAMILLY VARCHAR2(250), --семейство
GENUS VARCHAR2(250), --род
SPECIES VARCHAR2(250) --вид
);
/
create function fu1(p_search varchar2) return type_class
as
  t T_ classification;
begin
  t(v_species) := 'Sapiens Sapiens';
  return t;
end;
/
set serveroutput off;
begin
  dbms_output.put_line('Search: ['||fu1('search')||']');
end;
/

SQL>