Using constant values in SQL Loader control file

Question

Hi,
I have a requirement where I need to migrate the data of 6 tables from MS Access into Oracle data base. I have written SQL Loader scripts so that I can create CSV files based on MS Access data and then migrate into Oracle. But in Oracle tables we have 4 common columns like Create_By, Created_Date,Updated_By and Update_Date, and those fields should be taken care by system. So, basically system should update login user ID and sysdate values in respective columns. My question here is, I do not have above mentioned common columns in MS Access tables. So, can I hard code those values in control file by saying
Created_By CONSTANT user,
Create_Date CONSTANT TO_CHAR(SYSDATE,'MM/DD/YYYY HH24:MI:SS'),
Updated_By CONSTANT user,
Updated_Date CONSTANT TO_CHAR(SYSDATE,'MM/DD/YYYY HH24:MI:SS')
Please let me know your valuable suggestions.

Answer 1

You do it without it constant
--sample data file
1,2,,
3,4,,
LOAD DATA
INFILE 'D:\d.csv'
INTO TABLE ABC
FIELDS TERMINATED BY ","
( A,
  B,
  C sysdate,
  D "USER"
)Edited by: J99 on Jul 23, 2009 12:14 PM
OR use to avoid extra ',' in datafile.
--sample data file
1,2
3,4
LOAD DATA
INFILE 'D:\d.csv'
INTO TABLE ABC
FIELDS TERMINATED BY "," TRAILING NULLCOLS
( A,
  B,
  C sysdate,
  D "USER"
)