Cannot SELECT into a user-defined type variable

Question

Hi All,
Oracle 11.2 on Linux.
See the steps below. I am not able to insert/select into a TYPE variable. I do not want to do a TABLE declaration in my PL/SQL block, but want to use a user defined type. Is it possible ?
SQL> create or replace type sample_obj_rec as object
  2  (
  3     object_id    number,
  4     object_name  varchar2(32),
  5     object_type  varchar2(32)
  6  );
  7  /
Type created.
SQL> create or replace type sample_obj_tab as table of sample_obj_rec ;
  2  /
Type created.
-- ------------   CASE 1 ---------------------
SQL> declare
  2      v_tab   sample_obj_tab := sample_obj_tab() ;
  3  begin
  4      select object_id, object_name, object_type
  5      bulk   collect into v_tab
  6      from   dba_objects
  7      where  rownum < 11 ;
  8  end ;
  9  /
    from   dba_objects
ERROR at line 6:
ORA-06550: line 6, column 5:
PL/SQL: ORA-00947: not enough values
ORA-06550: line 4, column 5:
PL/SQL: SQL Statement ignored
-- ------------   CASE 2 ---------------------
SQL> declare
  2      v_rec   sample_obj_rec;
  3  begin
  4      select object_id, object_name, object_type
  5      into   v_rec
  6      from   dba_objects
  7      where  rownum = 1;
  8  end ;
  9  /
    from   dba_objects
ERROR at line 6:
ORA-06550: line 6, column 5:
PL/SQL: ORA-00947: not enough values
ORA-06550: line 4, column 5:
PL/SQL: SQL Statement ignoredWhat is the issue with both the above cases? what am I missing here?
Thanks in advance.

Answer 1

One small detail in the SELECT.
SQL> create or replace type sample_obj_rec as object
  2  (object_id    number,
  3   object_name  varchar2(32),
  4   object_type  varchar2(32));
  5  /
Type created.
SQL>
SQL> create or replace type sample_obj_tab as table of sample_obj_rec ;
  2  /
Type created.
SQL>
SQL> declare
  2     v_tab   sample_obj_tab := sample_obj_tab() ;
  3  begin
  4     select sample_obj_rec(object_id, object_name, object_type)
  5     bulk   collect into v_tab
  6     from   dba_objects
  7     where  rownum < 11 ;
  8  end ;
  9  /
PL/SQL procedure successfully completed.
SQL>