Odd error while opening a ref cursor

Question

Hi.
I have a procedure in a package that has both in and out parameters. One of those out parameters is a ref cursor. The procedure creates a dynamic query and then executes it, then it opens the cursor:
PROCEDURE PROC(
A IN VARCHAR2,
B IN VARCHAR2,
C OUT TYPES.cursorType; --(TYPES is a package whose only use is to declare a cursor type)
) IS
--DECLARATIONS
OPEN C FOR 'SELECT A, B, C, D...';
END;
When I execute the package in an anonymous block it throws the error:
ORA-00938: not enough arguments for function, just in the line where the cursor is being opened.
Any ideas?

Answer 1

is everything defined correctly?
create or replace package types  as
  type cursorType is ref cursor;
end types;
SQL> set serveroutput on
SQL> declare
  2 
  3    ref_C types.cursorType;
  4   
  5    v_a varchar2(1);
  6    v_b varchar2(1);
  7    v_c varchar2(1);
  8    v_d varchar2(1);
  9   
10    procedure Proc (a in varchar2
11                   ,b in varchar2
12                   ,C out types.cursorType) as
13 
14      begin
15        open C for 'select :1, :2, ''c'', ''d'' from dual' using a, b;
16    end  Proc;
17  begin
18 
19 
20    Proc('a', 'b', ref_C);
21   
22    fetch ref_C into v_a, v_b, v_c, v_d;
23    if (ref_C%found) then
24      dbms_output.put_line(v_a);
25      dbms_output.put_line(v_b);
26      dbms_output.put_line(v_c);
27      dbms_output.put_line(v_d);
28    end if;
29   
30   
31  end;
32  /
a
b
c
dP;
Edited by: bluefrog on Feb 18, 2010 6:07 PM