Invalid Cursor

Question

From Last 4 hours I am trying to resolve below issue.
Please Please.......Please Help me out.
Not getting that what is the problem ???? every thing is alright, why the error is comming on different database.
SQL*Plus: Release 10.1.0.2.0 - Production on Wed Jul 25 11:57:49 2007
Copyright (c) 1982, 2004, Oracle.  All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
With the Partitioning and OLAP options
JServer Release 9.2.0.6.0 - Production
SQL>  select * from v$version
  2  /
BANNER
Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
PL/SQL Release 9.2.0.6.0 - Production
CORE    9.2.0.6.0       Production
TNS for IBM/AIX RISC System/6000: Version 9.2.0.6.0 - Production
NLSRTL Version 9.2.0.6.0 - Production
SQL>
SQL> SELECT * FROM GLOBAL_NAME
  2  /
GLOBAL_NAME
PNRDPD
SQL>
SQL> CREATE OR REPLACE PACKAGE ORAPDEV_PKG IS
  2  PROCEDURE DUAL_DATA(P_DEPTNO IN NUMBER, RESULTSET IN OUT SYS_REFCURSOR);
  3  END ORAPDEV_PKG;
  4  /
Package created.
SQL>
SQL>
SQL>  CREATE OR REPLACE PACKAGE BODY ORAPDEV_PKG IS
  2   PROCEDURE DUAL_DATA(P_DEPTNO IN NUMBER, RESULTSET IN OUT SYS_REFCURSOR) IS
  3    BEGIN
  4    OPEN RESULTSET FOR 'SELECT EMPNO FROM SCOTT.EMP WHERE DEPTNO = '||P_DEPTNO;
  5    END;
  6   END ORAPDEV_PKG;
  7  /
Package body created.
SQL>
SQL>
SQL> VARIABLE DTA REFCURSOR;
SQL> EXEC ORAPDEV_PKG.DUAL_DATA(10,:DTA);
PL/SQL procedure successfully completed.
SQL> PRINT DTA
     EMPNO
      7782
      7839
      7934
SQL>
SQL>
SQL>
SQL> GRANT EXECUTE ON ORAPDEV_PKG TO PUBLIC;
Grant succeeded.
SQL> New Session of Another Database
SQL> CONNECT XXX/XXX@CISDPD
Connected.
SQL> create public database link PNRAPD connect to xxx identified by xxx using 'pnrapd';
Database link created.
SQL> SELECT COUNT(*) FROM ALL_TABLES@PNRAPD
  2  /
  COUNT(*)
       722
SQL>
SQL> CREATE PUBLIC SYNONYM ORAPDEV_PKG FOR ORAPDEV_PKG@PNRAPD;
Synonym created.
SQL>
SQL> VARIABLE DTA REFCURSOR;
SQL> EXEC ORAPDEV_PKG.DUAL_DATA(10,:DTA);
BEGIN ORAPDEV_PKG.DUAL_DATA(10,:DTA); END;
ERROR at line 1:
ORA-01001: invalid cursor
ORA-02063: preceding line from PNRAPD
SQL>
SQL>
SQL> SELECT * FROM GLOBAL_NAME;
GLOBAL_NAME
CISDPD
SQL>
SQL> EXEC ORAPDEV_PKG.DUAL_DATA@pnrapd(10,:DTA);
BEGIN ORAPDEV_PKG.DUAL_DATA@pnrapd(10,:DTA); END;
ERROR at line 1:
ORA-01001: invalid cursor
ORA-02063: preceding line from PNRAPD
SQL> SELECT COUNT(*) FROM ALL_TABLES@PNRAPD
  2  /
  COUNT(*)
       722
SQL>
SQL> select * from v$version
  2  /
BANNER
Oracle9i Enterprise Edition Release 9.2.0.7.0 - 64bit Production
PL/SQL Release 9.2.0.7.0 - Production
CORE    9.2.0.7.0       Production
TNS for Linux: Version 9.2.0.7.0 - Production
NLSRTL Version 9.2.0.7.0 - Production
SQL> 

Answer 1

again.....:(
how can I resolve this issue ??
PNRAPD DATABASE
CREATE OR REPLACE PACKAGE orapdev_pkg IS
  TYPE rcursor IS REF CURSOR;
  PROCEDURE dual_data(p_deptno  IN NUMBER
                     ,resultset IN OUT rcursor);
END orapdev_pkg;
CREATE OR REPLACE PACKAGE BODY orapdev_pkg IS
  PROCEDURE dual_data(p_deptno  IN NUMBER
                     ,resultset IN OUT rcursor) IS
  BEGIN
    OPEN resultset FOR 'SELECT EMPNO FROM SCOTT.EMP WHERE DEPTNO = ' || p_deptno;
  END;
END orapdev_pkg;
CISDPD DATABASE
SQL> var dta ORAPDEV_PKG.RCURSOR;
Usage: VAR[IABLE] [ <variable> [ NUMBER | CHAR | CHAR (n [CHAR|BYTE]) |
                    VARCHAR2 (n CHAR) | NCHAR | NCHAR (n) |
                    NVARCHAR2 (n) | CLOB | NCLOB | REFCURSOR |
                    BINARY_FLOAT | BINARY_DOUBLE ] ]
SQL>
SQL>
SQL>
SQL> declare
  2  vempno   scott.emp.empno@pnrapd%type;
  3  DTA      ORAPDEV_PKG.RCURSOR;
  4  begin
  5  ORAPDEV_PKG.DUAL_DATA(10,DTA);
  6  LOOP
  7  FETCH DTA
  8  INTO  vempno;
  9  EXIT WHEN dta%NOTFOUND;
10  DBMS_OUTPUT.PUT_LINE(vempno);
11  END LOOP;
12  CLOSE dta;
13  end;
14  /
declare
ERROR at line 1:
ORA-01001: invalid cursor
ORA-06512: at line 7Please help.