How do i map one field to another in control file via SQL Loader

Question

Can someone please reply back to this question
Hi,
I have a flat file (student.dat delimiter %~| ) using control file (student.ctl) through sql loader. Here are the details.
student.dat
student_id, student_firstname, gender, student_lastName, student_newId
101%~|abc%~|F %~|xyz%~|110%~|
Corresponding table
Student (
Student_ID,
Student_FN,
Gender,
Student_LN
Question:
How do i map student_newId field to student_id field in STUDENT DB table so that new id should be inserted in student_id column. How do i specify the mapping in control file. I dont want to create a new column in student table. Please let me know the best way to do this.
Can someone please reply back to this question.
My approach:
In control file i will sepecify the below, Is this a best approach?. Do we have any othe way?
STUDENT_ID *(:STUDENT_NEWID)*,
STUDENT_FN,
GENDER,
STUDENT_LNAME,
STUDENT_NEWID BOUNDFILLER
Thanks
Sunil
Edited by: 993112 on Mar 13, 2013 12:28 AM
Edited by: 993112 on Mar 13, 2013 12:30 AM
Edited by: 993112 on Mar 13, 2013 12:31 AM
Edited by: 993112 on Mar 18, 2013 2:52 AM

Answer 1

OK, ok...
Here is the sample data:
101%~|abc%~|F %~|xyz%~|110%~|
102%~|def%~|M %~|pqr%~|120%~|
103%~|ghi%~|M %~|stu%~|130%~|
104%~|jkl%~|F %~|vwx%~|140%~|
105%~|mno%~|F %~|yza%~|150%~|Here is the control file:
LOAD DATA
INFILE student.dat
TRUNCATE INTO TABLE STUDENT
FIELDS TERMINATED BY '%~|' TRAILING NULLCOLS
  student_old  FILLER
, student_fn
, gender
, student_ln
, student_id
)And here is the execution:
SQL> CREATE TABLE student
  2  (
  3    student_id   NUMBER
  4  , student_fn   VARCHAR2 (10)
  5  , gender       VARCHAR2 (2)
  6  , student_ln   VARCHAR2 (10)
  7  );
Table created.
SQL>
SQL> !sqlldr / control=student.ctl
SQL*Loader: Release 11.2.0.3.0 - Production on Tue Mar 19 14:37:31 2013
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Commit point reached - logical record count 5
SQL> select * from student;
STUDENT_ID STUDENT_FN                     GENDER STUDENT_LN
       110 abc                            F      xyz
       120 def                            M      pqr
       130 ghi                            M      stu
       140 jkl                            F      vwx
       150 mno                            F      yza
SQL>:p