SQL Loader Oracle 10g problem in upload date with time data -- Very urgent.

Question

Hi
I am trying to upload data using SQL loader. There are three columns in the table
defined as DATE. When I tried upload a data like this '2007-02-15 15:10:20', it is not loading time part. The date stored as 02/15/2008' only. There is not time on that. I tried with many different format nothing work. Can please help me ?
I have also tried with to_date --> to_timestamp it did not work.
The application is going to be in production, I cannot change DATE to TIME STAMP. This is very urgent.
LASTWRITTEN "decode(:LASTWRITTEN,'null',Null, to_date(:LASTWRITTEN,'YYYY-MM-DD HH24:Mi:SS'))",
CREATEDON "decode(:CREATEDON,'null',Null, to_date(:CREATEDON,'YYYY-MM-DD HH24:Mi:SS'))",
LASTUPDATEDON(21) "decode(:LASTUPDATEDON,'null',Null, to_date(:LASTUPDATEDON(21),'DD/MM/YYYY HH24:MI:SS'))"

Answer 1

Your problem is most likely in decode - the return type in your expression will be character based on first search value ('null'), so it will be implicitly converted to character and then again implicitly converted to date by loading into date column. At some of this conversions you probably are loosing your time part. You can try instead use cast:
SQL> desc t
Name                                      Null?    Type
LASTWRITTEN                                        DATE
CREATEDON                                          DATE
LASTUPDATEDON                                      DATE
SQL> select * from t;
no rows selected
SQL> !cat t.ctl
LOAD DATA
INFILE *
INTO TABLE T
TRUNCATE
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' TRAILING NULLCOLS
LASTWRITTEN
"decode(:LASTWRITTEN,'null',cast(Null as date),
  to_date(:LASTWRITTEN,'YYYY-MM-DD HH24:MI:SS'))",
CREATEDON
"decode(:CREATEDON,'null',cast(Null as date),
  to_date(:CREATEDON,'YYYY-MM-DD HH24:MI:SS'))",
LASTUPDATEDON
"decode(:LASTUPDATEDON,'null',cast(Null as date),
  to_date(:LASTUPDATEDON,'DD/MM/YYYY HH24:MI:SS'))"
BEGINDATA
2007-02-15 15:10:20,null,null
null,2007-02-15 15:10:20,null
null,null,15/02/2007 15:10:20
SQL> !sqlldr userid=scott/tiger control=t.ctl log=t.log
SQL*Loader: Release 10.2.0.3.0 - Production on Fri Feb 29 00:20:07 2008
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Commit point reached - logical record count 3
SQL> select * from t;
LASTWRITTEN         CREATEDON           LASTUPDATEDON
15.02.2007 15:10:20
                    15.02.2007 15:10:20
                                        15.02.2007 15:10:20Best regards
Maxim