Different log file name in the Control file of SQL Loader

Question

Dear all,
I get every day 3 log files with ftp from a Solaris Server to a Windows 2000 Server machine. In this Windows machine, we have an Oracle Database 9.2. These log files are in the following format: in<date>.log i.e. in20070429.log.
I would like to load this log file's data to an Oracle table every day and I would like to use SQL Loader for this job.
The problem is that the log file name is different every day.
How can I give this variable log file name in the Control file, which is used for the SQL Loader?
file.ctl
LOAD DATA
INFILE 'D:\gbal\in<date>.log'
APPEND INTO TABLE CHAT_SL
FIELDS TERMINATED BY WHITESPACE
TRAILING NULLCOLS
(SL1 DATE "Mon DD, YYYY HH:MI:SS FF3AM",
SL2 char,
SL3 DATE "Mon DD, YYYY HH:MI:SS FF3AM",
SL4 char,
SL5 char,
SL6 char,
SL7 char,
SL8 char,
SL9 char,
SL10 char,
SL11 char,
SL12 char,
SL13 char,
SL14 char,
SL15 char)
Do you have any better idea about this issue?
I thought of renaming the log file to an instant name, such as in.log, but how can I distinguish the desired log file, from the other two?
Thank you very much in advance.
Giorgos Baliotis

Answer 1

I don't have a direct solution for your problem.
However if you invoke the SQL loader from an Oracle stored procedure, it is possible to dynamically set control\log file.
# Grant previleges to the user to execute command prompt statements
BEGIN
dbms_java.grant_permission('bc4186ol','java.io.FilePermission','C:\windows\system32\cmd.exe','execute');
END;
* Procedure to execute Operating system commands using PL\SQL(Oracle script making use of Java packages
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "Host" AS
import java.io.*;
public class Host {
public static void executeCommand(String command) {
try {
String[] finalCommand;
finalCommand = new String[4];
finalCommand[0] = "C:\\windows\\system32\\cmd.exe";
finalCommand[1] = "/y";
finalCommand[2] = "/c";
finalCommand[3] = command;
final Process pr = Runtime.getRuntime().exec(finalCommand);
new Thread(new Runnable() {
public void run() {
try {
BufferedReader br_in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
String buff = null;
while ((buff = br_in.readLine()) != null) {
System.out.println("Process out :" + buff);
try {Thread.sleep(100); } catch(Exception e) {}
catch (IOException ioe) {
System.out.println("Exception caught printing process output.");
ioe.printStackTrace();
}).start();
new Thread(new Runnable() {
public void run() {
try {
BufferedReader br_err = new BufferedReader(new InputStreamReader(pr.getErrorStream()));
String buff = null;
while ((buff = br_err.readLine()) != null) {
System.out.println("Process err :" + buff);
try {Thread.sleep(100); } catch(Exception e) {}
catch (IOException ioe) {
System.out.println("Exception caught printing process error.");
ioe.printStackTrace();
}).start();
catch (Exception ex) {
System.out.println(ex.getLocalizedMessage());
public static boolean isWindows() {
if (System.getProperty("os.name").toLowerCase().indexOf("windows") != -1)
return true;
else
return false;
* Oracle wrapper to call the above procedure
CREATE OR REPLACE PROCEDURE Host_Command (p_command IN VARCHAR2)
AS LANGUAGE JAVA
NAME 'Host.executeCommand (java.lang.String)';
* Now invoke the procedure with an operating system command(Execyte SQL-loader)
* The execution of script would ensure the Prod mapping data file is loaded to PROD_5005_710_MAP table
* Change the control\log\discard\bad files as apropriate
BEGIN
Host_Command (p_command => 'sqlldr system/tiburon@orcl control=C:\anupama\emp_join'||1||'.ctl log=C:\anupama\ond_lists.log');
END;Does that help you?
Regards,
Bhagat