a cx_Oracle ORA-01036 problem

[Damjan]

I'm using Python 2.4, cx_Oracle-4.1 on Linux with Oracle instant client
10.1.0.3. This is the sql string:

SQL = """insert into D.D_NOTIFY values (:CARDREF, :BANKKEY, :OK1, :OK2 \
        :DEBTEUR, :DEBTDEN, to_date(:INVOICE_DATE,'DD.MM.YY'),
        to_date(:PAYMENT_DEADLINE,'DD.MM.YY'), :POINTS)"""

And I'm trying to execute it as:
        c = db.cursor()
        c.execute(SQL, CARDREF=id, BANKKEY=dc_kluc, OK1=okd, OK2=okc,                   
          DEBTEUR=iznos_eur, DEBTDEN=iznos_mkd, INVOICE_DATE=datum_g,           
          PAYMENT_DEADLINE=datum_d, POINTS=bodovi)

And I get an ORA-01036 exception.

I also have tried
        args = dict(CARDREF=id, BANKKEY=dc_kluc, OK1=okd, OK2=okc,       
          DEBTEUR=iznos_eur, DEBTDEN=iznos_mkd, INVOICE_DATE=datum_g,        
          PAYMENT_DEADLINE=datum_d, POINTS=bodovi)
        c = db.cursor()
        c.execute(SQL, **args)
Same thing.

Everything works If I use python string substituion, like this sql:
SQL = """insert into D.D_NOTIFY values (%s,'%s','%s','%s','%s','%s', \
        to_date('%s','DD.MM.YY'),to_date('%s','DD.MM.YY'),'%s')""" % fields

Any ideas?


-- 
damjan