Run os command from UDF

Question

hi I am using this code which needs to copy file
import java.io.File;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class RunSystemCommand {
     public static void main(String args[]) {
     String s = null;
//        system command to run
     String cmd = "copy a.txt b.txt";
//        set the working directory for the OS command processor
     File workDir = new File("c:
temp");
     try {
     Process p = Runtime.getRuntime().exec(cmd, null, workDir);
     int i = p.waitFor();
     if (i == 0){
     BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
//        read the output from the command
     while ((s = stdInput.readLine()) != null) {
     System.out.println(s);
     else {
     BufferedReader stdErr = new BufferedReader(new InputStreamReader(p.getErrorStream()));
//        read the output from the command
     while ((s = stdErr.readLine()) != null) {
     System.out.println(s);
     catch (Exception e) {
     System.out.println(e);
it doesnt work,the error is
java.io.IOException: CreateProcess: copy a.txt b.txt error=2
thx,Shai

Answer 1

If you are using SQL*Plus to execute the script, you can use the SQL*Plus command HOST. If you are trying to execute an operating system command from a PL/SQL block (i.e. a stored procedure), you would need to use an external procedure or a Java stored procedure that uses Java's shell functionality.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC