PL/SQL: Error "PLS-00306: wrong number or types of arguments in call to" triggered for table of numbers

Question

I'm trying to call an API using the exact procedure signature, but somehow the table of numbers I don't think is recognize correctly.

API definition:

TYPE NUMLIST IS TABLE OF NUMBER INDEX BY VARCHAR2(50);

PROCEDURE GETSERVICES_API
(
   I_DIMOBJID IN NUMBER, I_OBJECTID IN NUMBER, I_FILTER IN NUMBER, 
   O_ERRORCODE OUT NUMBER, O_ERRORTEXT OUT VARCHAR2, O_SERVICELIST OUT NUMLIST
);

My call of API:

DECLARE

   TYPE NUMLIST IS TABLE OF NUMBER INDEX BY VARCHAR2(50);
   lt_SERVICELIST              NUMLIST;

   ls_errortext             varchar2(100);
   ln_errorcode             number;

BEGIN


    PKGCOMSUPPORT_SERVICE.GETSERVICES_API(I_DIMOBJID => 6,
                                          I_OBJECTID => 5263,
                                          I_FILTER => 3,
                                          O_ERRORCODE => ln_errorcode,
                                          O_ERRORTEXT => ls_errortext,
                                          O_SERVICELIST => lt_SERVICELIST);

END;

When I run my call of API I got: PLS-00306: wrong number of types of arguments in call to 'GETSERVICE_API

Any idea why? Thanks

Answer 1

The reason why you are facing the PLS-00306 error is incompatibility of NUMLIST collection type, defined in the package specification and NUMLIST collection type defined in the anonymous PL/SQL block. Even though definitions of those two collection types are the same, they are not compatible. In your anonymous PL/SQL block you have to declare and then pass into the GETSERVICES_API procedure a variable of PKGCOMSUPPORT_SERVICE.NUMLIST data type.

create or replace package PKG as
  type t_numlist is table of number index by varchar2(50);
  procedure SomeProc(p_var in pkg.t_numlist);
end;
/

create or replace package body PKG as
  procedure someproc(p_var in pkg.t_numlist) is
  begin
    null;
  end;
end;
/

declare
  type t_numlist is table of number index by varchar2(50);
  l_var t_numlist;
begin
  pkg.someproc(l_var);
end;

ORA-06550: line 5, column 3:
PLS-00306: wrong number or types of arguments in call to 'SOMEPROC'

declare
  --type t_numlist is table of number index by varchar2(50);
  l_var pkg.t_numlist;
begin
  pkg.someproc(l_var);
end;

anonymous block completed