Expected number got CURSER - error

Question

Hi,
I've created a second function to populate the SQL Type with the ref cursor returned from the first function.
My first function is:
function getCapatTransa(pprefix varchar2, ptransa number, pid_lprodso number default null) return ref_cursor is
   tmp ref_cursor;
   error varchar2(1500);
begin
    open tmp for select osif_ni.getCapatTransa(pprefix, ptransa, pid_lprodso) from dual;
    return tmp;
    exception
      when others then
       error := substr(sqlerrm,1,1500);
         raise_application_error('-20100', 'Eroare! '||error);
end getCapatTransa;And the second function (and also the according type is):
create or replace type transe_type as object(cod varchar2(40))
create or replace type t_transe_type as table of transe_type;
create or replace function get_transe_numere(pprefix varchar2, ptransa number, pid_lprodso number default null)
    return t_transe_type is
      v_transe  t_transe_type := t_transe_type();  -- Declare a local table structure and initialize it
      v_cnt     number := 0;
      v_rc      sys_refcursor;
      v_cod     varchar2(40);
   begin
     v_rc := osapi_ni.getCapatTransa(pprefix, ptransa, pid_lprodso);
     loop
       fetch v_rc into v_cod;
       exit when v_rc%NOTFOUND;
       v_transe.extend;
       v_cnt := v_cnt + 1;
       v_transe(v_cnt) := transe_type(v_cod);
     end loop;
     close v_rc;
     return v_transe;
  end;
  /When i try to call this second function, i got the error:
SQL>  select * from table(get_Transe_numere('0268',34334,24454354));
select * from table(get_Transe_numere('0268',34334,24454354))
ORA-00932: inconsistent datatypes: expected NUMBER got CURSER
ORA-06512: at "INFO.GET_TRANSE_NUMERE", line 10
ORA-06512: at line 1But i don't know why. Please help, tell me what's wrong, i can't understand.
Thanks

Answer 1

Hello
From what I can see you have two functions named getCapatTransa, one in osapi_ni and the other in osif_ni, but to my mind, uless they differ by return type i.e. osif_ni.getCapatTransa does not return a cursor type, you are opening a cursor that contains a cursor - so when you fetch you are fetching a cursor.
Note that I've changed the name of one of the functions rather than create the separate schemas.
SQL> create or replace function getCapatTransb(pprefix varchar2, ptransa number, pid_lprodso number default null) return sys_refcursor i
  2     tmp sys_refcursor;
  3     error varchar2(1500);
  4   begin
  5      open tmp for select pprefix as prefix, ptransa as transa, pid_lprodso as lprodso from dual;
  6      return tmp;
  7      exception
  8        when others then
  9         error := substr(sqlerrm,1,1500);
10           raise_application_error('-20100', 'Eroare! '||error);
11  end getCapatTransb;
12  /
Function created.
Elapsed: 00:00:00.10
SQL> create or replace function getCapatTransa(pprefix varchar2, ptransa number, pid_lprodso number default null) return sys_refcursor i
  2     tmp sys_refcursor;
  3     error varchar2(1500);
  4   begin
  5      open tmp for select getCapatTransb(pprefix, ptransa, pid_lprodso) from dual;
  6      return tmp;
  7      exception
  8        when others then
  9         error := substr(sqlerrm,1,1500);
10           raise_application_error('-20100', 'Eroare! '||error);
11  end getCapatTransa;
12  /
Function created.
Elapsed: 00:00:00.03
SQL> create or replace type transe_type as object(cod varchar2(40))
  2  /
Type created.
Elapsed: 00:00:00.15
SQL> create or replace type t_transe_type as table of transe_type
  2  /
Type created.
Elapsed: 00:00:00.01
SQL> create or replace function get_transe_numere(pprefix varchar2, ptransa number, pid_lprodso number default null)
  2      return t_transe_type is
  3        v_transe  t_transe_type := t_transe_type();  -- Declare a local table structure and initialize it
  4        v_cnt     number := 0;
  5        v_rc      sys_refcursor;
  6        v_cod     varchar2(40);
  7     begin
  8       v_rc := getCapatTransa(pprefix, ptransa, pid_lprodso);
  9       loop
10         fetch v_rc into v_cod;
11         exit when v_rc%NOTFOUND;
12         v_transe.extend;
13         v_cnt := v_cnt + 1;
14         v_transe(v_cnt) := transe_type(v_cod);
15       end loop;
16       close v_rc;
17       return v_transe;
18    end;
19    /
Function created.
Elapsed: 00:00:00.03
SQL> select * from table(get_Transe_numere('0268',34334,24454354));
select * from table(get_Transe_numere('0268',34334,24454354))
ERROR at line 1:
ORA-00932: inconsistent datatypes: expected NUMBER got CURSER
ORA-06512: at "JJACOB_APP.GET_TRANSE_NUMERE", line 10
ORA-06512: at line 1So you would need to either change this to be
create or replace function get_transe_numere(pprefix varchar2, ptransa number, pid_lprodso number default null)
    return t_transe_type is
      v_transe  t_transe_type := t_transe_type();  -- Declare a local table structure and initialize it
      v_cnt     number := 0;
      v_rc      sys_refcursor;
      v_cod     varchar2(40);
   begin
     v_rc := getCapatTransa(pprefix, ptransa, pid_lprodso);
     loop
       fetch v_rc into v_cod;
       exit when v_rc%NOTFOUND;
       v_transe.extend;
       v_cnt := v_cnt + 1;
       v_transe(v_cnt) := transe_type(v_cod);
     end loop;
     close v_rc;
     return v_transe;
  end;
  / Or you would need to modify the loop in the table function to deal with the nested cursor.
HTH
David