Help with "ORA-06511: PL/SQL: cursor already open"

Question

I've tried numerous variations on this piece of code and I always get the same result. I'm sure this is painfully obvious to an experienced PL/SQL person.
Any help will be appreciated!
Thank You!
1 DECLARE
2 CURSOR EMP_CURSOR IS SELECT last_name from employees;
3 current_last_name varchar2(25);
4 BEGIN
5 IF EMP_CURSOR%ISOPEN
6 THEN
7 dbms_output.put_line ('cursor is already open');
8 close EMP_CURSOR;
9 END IF;
10 dbms_output.put_line ('opening cursor');
11 OPEN EMP_CURSOR;
12 FOR item in EMP_CURSOR LOOP
13 FETCH EMP_CURSOR INTO current_last_name;
14 EXIT WHEN EMP_CURSOR%NOTFOUND;
15 dbms_output.put_line (item.last_name);
16 END LOOP;
17 CLOSE EMP_CURSOR;
18* END;
19 /
DECLARE
ERROR at line 1:
ORA-06511: PL/SQL: cursor already open
ORA-06512: at line 2
ORA-06512: at line 12

Answer 1

Mathieu,
Log in as anotherSchema and grant select on 'IDsTable' to the current user.
SQL> r
  1  create or replace function f1(theID varchar2) return mytype pipelined is
  2  out varchar2(30);
  3  cursor myCursor (x varchar2) is select * from scott.emp where job=x;
  4  begin
  5  for rec in myCursor(theID) loop
  6  pipe row(rec.ename);
  7  end loop;
  8  return;
  9* end;
Warning: Function created with compilation errors.
SQL> show errors
Errors for FUNCTION F1:
LINE/COL ERROR
3/33     PL/SQL: SQL Statement ignored
3/53     PL/SQL: ORA-00942: table or view does not exist
6/1      PL/SQL: Statement ignored
6/10     PLS-00364: loop index variable 'REC' use is invalid
SQL> connect scott
Enter password: *****
Connected.
SQL> grant select on emp to testuser;
Grant succeeded.
SQL> connect testuser
Enter password: ****
Connected.
SQL> create or replace function f1(theID varchar2) return mytype pipelined is
  2  out varchar2(30);
  3  cursor myCursor (x varchar2) is select * from scott.emp where job=x;
  4  begin
  5  for rec in myCursor(theID) loop
  6  pipe row(rec.ename);
  7  end loop;
  8  return;
  9  end;
10  /
Function created.
SQL> disconnect
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.3.0 - 64bit Production
With the Partitioning option
JServer Release 9.2.0.3.0 - Production
SQL>