PROBLEM LOADING DATA FROM A TEXT FILE.

Question

Hi,
Im having a problem in loading my csv file to the database. Im using Oracle Database 10g for Linux. Im in p. 228 in the book. This is my csv file look.
db_name     db_version     host_id
db10     9.2.0.7     1
db11     10.2.0.1     1
db12     10.2.0.1     1
db13     9.2.0.7     1
db14     10.2.0.1     1
db15     9.2.0.7     1
I loaded this data to an existing table called DATABASES loaded from tab delimited. FILE CHARACTER SET is UNICODE UTF-8. Then I browsed the name of the csv file to be uploaded. It looked like this.
File Name      F23757437/db2.csv     Reupload File      
Separator      
Optionally Enclosed By      
     First row contains column names.
File Character Set      
I CLICKED NEXT, THIS IS WHAT IT LOOKED LIKE.
Schema:      HANDSONXE06
Table Name:      DATABASES
Define Column Mapping      
Column Names     %
Format     
Upload     yes
Row 1     "db10" "9.2.0.7" 1
Row 2     "db11" "10.2.0.1" 1
Row 3     "db12" "10.2.0.1" 1
Row 4     "db13" "9.2.0.7" 1
Row 5     "db14" "10.2.0.1" 1
Row 6     "db15" "9.2.0.7" 1
I CLICKED LOAD AND THIS WAS THE RESULT.
* There are NOT NULL columns in HANDSONXE06.DATABASES. Select to upload the data without an error.
Schema
Down
Table Name
Down
File Details
Down
Column Mapping
Load Data      
Schema:      HANDSONXE06
Table Name:      DATABASES
Define Column Mapping      
Column Names     COLUMN_NAMES
Format     FORMAT
Upload     UPLOAD
Row 1     "db10" "9.2.0.7" 1
Row 2     "db11" "10.2.0.1" 1
Row 3     "db12" "10.2.0.1" 1
Row 4     "db13" "9.2.0.7" 1
Row 5     "db14" "10.2.0.1" 1
Row 6     "db15" "9.2.0.7" 1
I WAS REALLY WONDERING WHAT WAS REALLY WRONG. AN ERROR MESSAGE SAID, THERE ARE NOT NULL COLUMNS IN THE HANDSONXE06.DATABASES. I DIDN'T KNOW HOW TO FIX IT. WHAT DO I NEED TO CHANGE TO LOAD THE DATA WITHOUT AN ERROR? IT REALLY CONFUSED ME A LOT AND HOW COME I HAVE AN ERROR? PLEASE HELP ME. I NEED AND ANSWER TO MY PROBLEM PLEASE. I CANNOT GO FORWARD BECAUSE OF THIS.
THANKS,
JOCELYN

Answer 1

I'm not certain of the utility you are using to load the data, however, I completed the following test using SQL Loader to insert the data into my table. Your process should work similar if the trigger and sequence are created for the table you are loading.
SQL> create table load_tbl
  2  (db_id number(3) not null,
  3   db_name varchar2(100) not null,
  4   db_version varchar2(25),
  5   host_id number(3) not null)
  6  /
Table created.
SQL> desc load_tbl
Name                                      Null?    Type
DB_ID                                     NOT NULL NUMBER(3)
DB_NAME                                   NOT NULL VARCHAR2(100)
DB_VERSION                                         VARCHAR2(25)
HOST_ID                                   NOT NULL NUMBER(3)
SQL> create sequence db_id_seq;
Sequence created.
SQL> create or replace trigger db_id_trig
  2  before insert on load_tbl
  3  for each row
  4  when (new.db_id is null)
  5  begin
  6    select db_id_seq.nextval into :new.db_id from dual;
  7  end;
  8  /
Trigger created.
The contents of the data file, control file and log file are below for the load into load_tbl.
C:\>sqlldr userid=username/password@db control=db_id_load.ctl log=db_id_load.log
SQL*Loader: Release 9.2.0.6.0 - Production on Thu Jan 18 17:21:47 2007
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Commit point reached - logical record count 6
C:\>
SQL> select * from load_tbl
  2  /
     DB_ID DB_NAME              DB_VERSION                   HOST_ID
         1 db10                 9.2.0.7                            1
         2 db11                 10.2.0.1                           1
         3 db12                 10.2.0.1                           1
         4 db13                 9.2.0.7                            1
         5 db14                 10.2.0.1                           1
         6 db15                 9.2.0.7                            1
6 rows selected.
SQL>
Data File"db10" "9.2.0.7" 1
"db11" "10.2.0.1" 1
"db12" "10.2.0.1" 1
"db13" "9.2.0.7" 1
"db14" "10.2.0.1" 1
"db15" "9.2.0.7" 1
Control FileLOAD DATA
INFILE "C:\db_id_load.dat"
APPEND INTO TABLE load_tbl
FIELDS TERMINATED BY WHITESPACE OPTIONALLY ENCLOSED BY '"'
TRAILING NULLCOLS
(db_name CHAR,
db_version CHAR,
host_id "TO_NUMBER(:host_id,'99999999999')"
Log FileSQL*Loader: Release 9.2.0.6.0 - Production on Thu Jan 18 17:21:47 2007
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Control File:   db_id_load.ctl
Data File:      C:\db_id_load.dat
  Bad File:     db_id_load.bad
  Discard File:  none specified
(Allow all discards)
Number to load: ALL
Number to skip: 0
Errors allowed: 50
Bind array:     64 rows, maximum of 256000 bytes
Continuation:    none specified
Path used:      Conventional
Table LOAD_TBL, loaded from every logical record.
Insert option in effect for this table: APPEND
TRAILING NULLCOLS option in effect
   Column Name                  Position   Len  Term Encl Datatype
DB_NAME                             FIRST     *  WHT O(") CHARACTER           
DB_VERSION                           NEXT     *  WHT O(") CHARACTER           
HOST_ID                              NEXT     *  WHT O(") CHARACTER           
    SQL string for column : "TO_NUMBER(:host_id,'99999999999')"
Table LOAD_TBL:
  6 Rows successfully loaded.
  0 Rows not loaded due to data errors.
  0 Rows not loaded because all WHEN clauses were failed.
  0 Rows not loaded because all fields were null.
Space allocated for bind array:                  49536 bytes(64 rows)
Read   buffer bytes: 1048576
Total logical records skipped:          0
Total logical records read:             6
Total logical records rejected:         0
Total logical records discarded:        0
Run began on Thu Jan 18 17:21:47 2007
Run ended on Thu Jan 18 17:21:47 2007
Elapsed time was:     00:00:00.39
CPU time was:         00:00:00.13