ORA-01722: invalid number - when last column has numbers that has a decimal seperator

Question

Below is the sample data -
FRT,1.64,VAT,23.36
FRT,1.64,VAT,23.36
When I try to convert 1.64 to to_number all is good but when I do the same with 23.36 I get the following error
ORA-29913: error in executing ODCIEXTTABLEFETCH callout
ORA-01722: invalid number
ORA-06512: at "SYS.ORACLE_LOADER", line 52
I tried this query as well
select to_number(CONSIGNMENT_NET_VALUE) as Col1 from DUMP_EXT
select to_number(CONSIGNMENT_NET_VALUE,'9999999999D99999','NLS_NUMERIC_CHARACTERS='',.''' ) as Col1 from DUMP_EXT --> 268906.1
getting the same error - any help greatly appreciated.
T.
Srini

Answer 1

Hi,
You can check this test case
SQL> !cat a.txt
FRT,1.64,VAT,23.36
FRT,1.64,VAT,56.36
FRT,1.64,VAT,23.36
SQL> create table DUMP_EXT
    Charge_ID_FRT VARCHAR2(50),
    Net_Amount_VAT VARCHAR2(50),
    Charge_ID_VAT VARCHAR2(50),
    Consignment_Net_Value VARCHAR2(50)
ORGANIZATION EXTERNAL
    (TYPE ORACLE_LOADER
    DEFAULT DIRECTORY DATA_DD_DIR
    ACCESS PARAMETERS
        (RECORDS DELIMITED BY '\n'
        SKIP 1
        BADFILE 'bad_%a_%p.bad'
        LOGFILE 'log.log'
        FIELDS TERMINATED BY ','
        MISSING FIELD VALUES ARE NULL
        REJECT ROWS WITH ALL NULL FIELDS
            Charge_ID_FRT CHAR(50),
            Net_Amount_VAT CHAR(50),
            Charge_ID_VAT CHAR(50),
            Consignment_Net_Value CHAR(50)
    LOCATION ('a.txt')
reject limit 0;
  2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28 
Table created.
SQL> select charge_id_frt,net_amount_vat,charge_id_vat,consignment_net_value from dump_ext;
CHARG NET_AMOUNT_VAT                                     CHARG CONSIGNMENT_NET_VALUE
FRT   1.64                                               VAT   56.36
FRT   1.64                                               VAT   23.36
--- Get Error here
SQL> select to_number(CONSIGNMENT_NET_VALUE,'99D99','NLS_NUMERIC_CHARACTERS='',.''' ) as Col1 from DUMP_EXT
  2  /
select to_number(CONSIGNMENT_NET_VALUE,'99D99','NLS_NUMERIC_CHARACTERS='',.''' ) as Col1 from DUMP_EXT
ERROR at line 1:
ORA-29913: error in executing ODCIEXTTABLEFETCH callout
ORA-01722: invalid number
-- Check the Variable at DB level
SQL>   SELECT value   FROM NLS_DATABASE_PARAMETERS  WHERE parameter='NLS_NUMERIC_CHARACTERS';
VALUE
-- Use the Query like
SQL> select to_number(CONSIGNMENT_NET_VALUE,'99D99','NLS_NUMERIC_CHARACTERS=''.,''' ) as Col1 from DUMP_EXT;
      COL1
     56.36
     23.36
HTH