Error running a procedure in Python: (wrong number or types of arguments)

Question

I am getting the following error when trying o execute a stored procedure in python.
cx_Oracle.DatabaseError: ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'LOAD_FILE1'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
When executed from the SQL Plus or sql developer the same procedure runs without any issue. The following is the code of the called procedure:
create or replace
PROCEDURE load_file1 (
P_FILE_NAME in varchar2)* IS
src_file BFILE;
dst_file BLOB;
lgh_file BINARY_INTEGER;
BEGIN
src_file := bfilename('inbox_scnr_dir', P_FILE_NAME);
-- insert a NULL record to lock
the above procedure updates creates and updates a record in the table.
I am calling the above procedure as follows in my python code , see the curs.callproc("load_file1",osfile)
for filename in files:
osfile = doc_number(filename)
curs.callproc("load_file1",osfile)+
db.commit()
As you can see I am giving only one argument and the type is string as well, it passes the filename like 'abx.txt' to the procedure. So I am not wrong there.
Am I calling it in a wrong way or the cx_Oracle have some limitation about procedure callings.
Can the gurus on the forum help me please. Just need a direction to resolve this , if you can guide me.
Thanks
Edited by: user10903866 on Feb 28, 2013 5:54 AM
Edited by: user10903866 on Feb 28, 2013 6:45 AM

Answer 1

CREATE OR REPLACE
PACKAGE TESTER AS
TYPE t_ref_cur IS REF CURSOR;
PROCEDURE getRS (p_recordset OUT t_ref_cur);
END;
CREATE OR REPLACE
PACKAGE BODY TESTER AS
PROCEDURE getRS (p_recordset OUT t_ref_cur) AS
BEGIN
OPEN p_recordset FOR
SELECT
name,
value
FROM
Parameters;
END;
END;For this type of procedure call, you should first have the ref cursor declaration like below
declare
cur tester.t_ref_cur;
begin
tester.getRS (cur);
for i in cur
loop
dbms_output.put_line(i.name);
end loop;
close cur;
end;Using sys_refcursor also, your handling will be same as shown above......sys_refcursor and normal weak ref cursor only make difference if it is stand alone procedure