How to capture output from Runtime.exec() ?

Hi,
Well, the question is in the subject ...
I'd like to capture the output of a process ran by Runtime.exec() in order to process it.
thanks,
ionel

Okay ...
Sorry for the post !
I found the solution : Runtime.exec().getOutputStream()
Thanks however
ionel

Similar Messages

Capturing output from Runtime.exec()

I want to be able to get the jvm version by calling "java.exe -version" from within a java application. The following code executes fine (given all the stuff I left out of this post) except for the fact that the inputstream only reads null from the process.
Anybody have any ideas of why I can't capture the output? This same code works fine if I execute a bat file which calls "java -version".
final private String[] versionInfo ={"cmd","/c","\"C:\\Program Files\\java\\bin\\java\"", "-version"};
try{
               //execute new process
               System.out.println("executing process");
               Runtime runtime = Runtime.getRuntime();
               Process proc = runtime.exec(cmd,env);
               System.out.println("initializing streams");
               //read output
               InputStream inputstream = proc.getInputStream();
               InputStreamReader inputstreamreader = new InputStreamReader(inputstream);
               BufferedReader bufferedreader =     new BufferedReader(inputstreamreader);
               String line;
               System.out.println("reading output");
               while ((line = bufferedreader.readLine())!= null){
                    System.out.println("read something");
                    System.out.println(line);
                    outputText.append(line);
                    outputText.append("\r\n");
                    outputText.update();
               System.out.println("finished reading");
               //check for errors
               try {
                    if (proc.waitFor() != 0) {
                         System.err.println("exit value = " + proc.exitValue());
               }catch (InterruptedException e) {
                    System.err.println(e);
          }catch(Exception e){
               e.printStackTrace();
          System.out.println("exiting execute method");

What's wrong with just using one or more of the following System Properties?
java.vendor=Sun Microsystems Inc.
java.vendor.url=http://java.sun.com/
java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport.cgi
java.version=1.4.2_04
java.vm.info=mixed mode
java.vm.name=Java HotSpot(TM) Client VM
java.vm.specification.name=Java Virtual Machine Specification
java.vm.specification.vendor=Sun Microsystems Inc.
java.vm.specification.version=1.0
java.vm.vendor=Sun Microsystems Inc.
java.vm.version=1.4.2_04-b05If you insist on using an external process, this article may help.
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

How to capture output of java files using Runtime.exec

Hi guys,
I'm trying to capture output of java files using Runtime.exec but I don't know how. I keep receiving error message "java.lang.NoClassDefFoundError:" but I don't know how to :(
import java.io.*;
public class CmdExec {
public CmdExec() {
public static void main(String argv[]){
     try {
     String line;
     Runtime rt = Runtime.getRuntime();
     String[] cmd = new String[2];
     cmd[0] = "javac";
     cmd[1] = "I:\\My Documents\\My file\\CSM\\CSM00\\SmartQ\\src\\E.java";
     Process proc = rt.exec(cmd);
     cmd = new String[2];
     cmd[0] = "javac";
     cmd[1] = "I:\\My Documents\\My file\\CSM\\CSM00\\SmartQ\\src\\E";
     proc = rt.exec(cmd);
     //BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
     BufferedReader input = new BufferedReader(new InputStreamReader(proc.getErrorStream()));
     while ((line = input.readLine()) != null) {
        System.out.println(line);
     input.close();
    catch (Exception err) {
     err.printStackTrace();
public class E {
    public static void main(String[] args) {
        System.out.println("hello world!!!!");
}Please help :)

Javapedia: Classpath
How Classes are Found
Setting the class path (Windows)
Setting the class path (Solaris/Linux)
Understanding the Java ClassLoader
java -cp .;<any other directories or jars> YourClassNameYou get a NoClassDefFoundError message because the JVM (Java Virtual Machine) can't find your class. The way to remedy this is to ensure that your class is included in the classpath. The example assumes that you are in the same directory as the class you're trying to run.
javac -classpath .;<any additional jar files or directories> YourClassName.javaYou get a "cannot resolve symbol" message because the compiler can't find your class. The way to remedy this is to ensure that your class is included in the classpath. The example assumes that you are in the same directory as the class you're trying to run.

Displaying input from Runtime.exec()

Hi there, after all my troubles, I'm finaly able to get all the input from the unix machine using Runtime.exec() and to have it come out pretty quick. My new problem now is that I need to take that input and display it onto a textPane. Anyone who can help me do that? here is the code I have written, along with the method I use called setPaneText():
class StreamGobbler extends Thread
InputStream is;
String type;
StreamGobbler(InputStream is, String type)
this.is = is;
this.type = type;
public void run()
try
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line=null;
while ( (line = br.readLine()) != null)
System.out.println(type + ">" + line);
} catch (Exception ioe)
ioe.printStackTrace();
private void jMenuItem13ActionPerformed(java.awt.event.ActionEvent evt) {
Object source = evt.getSource();
String serverComm;
serverComm = "";
serverComm = pp.getServerComm();
if(source == jMenuItem13)
try
String osName = System.getProperty("os.name");
Runtime rt = Runtime.getRuntime();
Process commandReturn = rt.exec(serverComm + " /usr/local/bin/dlgexec pd_rm_cm trashcan");
//StreamGobbler errorGobbler = new
//StreamGobbler(commandReturn.getErrorStream(), "ERROR");
StreamGobbler outputGobbler = new
StreamGobbler(commandReturn.getInputStream(), "OUTPUT");
//errorGobbler.start();
outputGobbler.start();
int exitVal = commandReturn.waitFor();
System.out.println("exitVal = " + exitVal);
if(exitVal == 0)
System.out.println("inside the trashcan if");
int cnt = 0;
String outText []= new String [10000];
BufferedReader buffy = new BufferedReader(new InputStreamReader(outputGobbler.is));
while((outText[cnt]=buffy.readLine()) != null)
cnt++;
if(cnt == 9000)
break;
TextAreaPanel tp;
tp = new TextAreaPanel();
for(int cnt2 = 0; cnt2 < cnt; cnt2++)
String temp;
temp = outText[cnt2] + "\n";
tp.setPaneText(temp);
jPanel1.removeAll();
jPanel1.add(tp, BorderLayout.CENTER);
jPanel1.validate();
this.repaint();
catch(Throwable t)
t.printStackTrace();
and here is the method that I call
public void setPaneText(String message)
jTextArea1.setEnabled(true);
//jTextArea1.setEditable(false);
String outText = message;
jTextArea1.setText(message);
jScrollPane1.setViewportView(jTextArea1);
//return outText;
String message;

@Op. Please learn how to use code formatting when you post code:
http://forum.java.sun.com/help.jspa?sec=formatting

Don't redirect output or Runtime.exec()

Hello, I am using Runtime.exec() to execute a .bat file on a windows xp machine. I am able to read the output within the java app just fine. The problem is that I don't want the output to be redirected to a java stream as the default behavior of Runtime.exec() enforces. Is there anyway to run a .bat file and have the output stay in the DOS window that appears?

Thanks for the input so far. Here is more detail. I have to execute the bat file. No way around that one. I tried getting no window to pop up but the only solution I found to this was to create a shortcut and launch the process with a minimized window. Not to keen on this solution as it isn't very elegant. Plus it would be very very bad if the window was closed in the middle of execution. If anybody knows of a better way not to have the window show up I would like to hear it.
So now I am stuck with a blank DOS window. I figure the next best thing is to just use the window and have the output that normally shows up there to actually show up there when launched from a java process. This way hopefully the user realizes something is running in the window and they shouldn't close it.
You would think java would have some way to a launch a process and forget about it.

Running ftp from runtime exec()

How would I run ftp from exec()? Can I run a script that is ftping from exec()? Why would anyone go through the trouble of writing their own ftp code, if you can just call a script from the exec() method? I am going to be running ftp from a servlet to send a file to a mainframe, where it will run and create an xml file that the servlet will then post to the screen. should I be using java's ftp commands, or will my script way work fine?
Thanks

How would I run ftp from exec()?Like any other program. It would be good to read the article http://www.javaworld.com/jw-12-2000/jw-1229-traps.html first to get it right the first time.
Can I run a script that is ftping from exec()?I don't see any objections.
Why would anyone go
through the trouble of writing their own ftp code, if
you can just call a script from the exec() method?Good question. 1) you are making your application platform dependent by using a platform depenent program 2) Runtime.exec() can't be used in applets but ftp over a socket connection is possible 3) There are already good packages for it (eg. at www.fooware.com) written for it so you don't need to write anything yourself (and 4: just because it's fun!)
I am going to be running ftp from a servlet to send a
file to a mainframe, where it will run and create an
xml file that the servlet will then post to the
screen. should I be using java's ftp commands, or
will my script way work fine?
If you have a working script and you know you will work on only one platform calling a script with exec will be just fine.

Supressing windows spawned from Runtime.exec()

Hi,
I was wondering if anyone had any suggestions on how to suppress windows spawned from using Runtime.exec(program). I've had a good look at the Process object returned from this and cant find a way to do it. I'd like to keep the process being run completely invisible from the user but i'm getting a blank window appear - spawned from the app being run.
Any ideas?
TIA,
Danny

The exec is called k.exe - its a programming language. I'm writing an interface for a database system called KDB which is implemented in K. (called using 'k db args...').
Have a look at www.kudib.com if you want to see a bit more about my project or www.kx.com to learn more about K and KDB.
Danny

Make can't recursively call Make when run from Runtime.exec (for some user)

This one is a little complicated. The afflicted platform is Mac OS X. It works fine on Linux, it seems, and even then, it does work for some Mac OS X users...
First, the setup. I have a Java program that has to call GNU Make. Then, GNU Make will recursively call Make in some subdirectories. This results in the following Java code:
String make = "make"; //on windows, I have this swapped with "mingw32-make"
String workDir = ...; //this is programmatically detected to be the same folder that the parent Makefile is in
Runtime.getRuntime().exec(make,null,workDir);This calls make on a Makefile which has the following line early on to be executed (this is only a snippet from the makefile):
cd subdirectory && $(MAKE)When I fetch the output from the make command, I usually get what I expect: It cd's to the directory and it recursively calls make and everything goes smoothly.
However, for one particular user, using Mac OS X, he has reported the following output:
cd subdirectory && make
/bin/sh: make: command not found
make: *** [PROJNAME] Error 127Which is like, kinda hurts my head... make can't find make, apparently.
I've gotten some suggestions that it might be due to the "cd" command acting wonky. I've gotten other suggestions that it may be some strange setup with the env variables (My Mac developer is implementing a fix/workaround for 'environ', which is apparently posix standard, but Mac (Mr. Posix Compliance...) doesn't implement it. When he finishes that, I'll know whether it worked or not, but I get the feeling it won't fix this problem, since it's intended for another area of code entirely...
Also worth mentioning, when the user calls "make" from the terminal in said directory, it recurses fine, getting past that particular line. (Later on down the road he hits errors with environ, which is what my aforementioned Mac dev is working on). Although calling "make" by hand is not an ideal solution here.
Anyways, I'm looking for someone who's fairly knowledgeable with Runtime.exec() to suggest some way to work around this, or at least to find out that perhaps one of the User's settings are wonked up and they can just fix it and have this working... that'd be great too.
-IsmAvatar

YoungWinston
YoungWinston wrote:
IsmAvatar wrote:
However, for one particular user, using Mac OS X, he has reported the following output:One particular user, or all users on Mac OS?In this case, I have two mac users. One is reporting that all works fine. The other is reporting this problem.
cd subdirectory && make
/bin/sh: make: command not found
make: *** [PROJNAME] Error 127Which is like, kinda hurts my head... make can't find make, apparently.If that is being reported on the command line, then I'd say that make wasn't being found at all.If make isn't being found, then who's interpreting the Makefile?
It's also just possible that the make script on Mac isn't correctly exporting its PATH variable, though it seems unlikely, since this would surely have been reported as a bug long ago.
I've gotten some suggestions that it might be due to the "cd" command acting wonky...Also seems unlikely. 'cd' has been around since shortly after the K-T extinction event.
WinstonBy "acting wonky", I mean being given a bad work directory or some such, such that it's not changing to the intended directory.
Andrew Thompson
Andrew Thompson wrote:
(shudder) Read and implement all the recommendations of "When Runtime.exec() won't" (http://www.javaworld.com/jw-12-2000/jw-1229-traps.html).
Already read it. I already know the dreadful wonders of Runtime.exec. But in this case, it's been working fine for us up until one Mac user reported that make can't find make.
Also, why are you still coding for Java 1.4? If you are not, use a ProcessBuilder, which takes a small part of the pain out of dealing with processes.Usually I do use a ProcessBuilder. I noticed that it usually delegates to Runtime.exec() anyways, and seeing as I didn't need any of the additional functionality, I decided to just use Runtime.exec() in this particular case.
jschell
jschell wrote:
So print thos env vars, in your app and when the user does it.I'll look into that. It's a good start.
-IsmAvatar

Execute java class from a batch file called from runtime.exec

Hi.
I don´t know if this question fits here.
I wan´t to execute a batch file (on Win XP) with runtime.exec. That batch file will execute another java program.
I have the following code:
Resolutor.java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class Resolutor {
      * @param args
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          Runtime r = Runtime.getRuntime();
          //String[] command = { "cmd.exe", "/C",".\\lanzar.bat .\\ .\\ 001.res:001.dtt" };
          String[] command = { "cmd.exe", "/C",".\\tarea\\lanzar.bat " + args[0] + " " + args[1] + " " + args[2]};
          try {
               //Process proceso = Runtime.getRuntime().exec("lanzar.bat");
               Process proceso = Runtime.getRuntime().exec(command);
               InputStream stderr = proceso.getErrorStream();
            InputStreamReader isr = new InputStreamReader(stderr);
            BufferedReader br = new BufferedReader(isr);
            String line = null;
            System.out.println("<ERROR>");
            while ( (line = br.readLine()) != null)
                System.out.println(line);
            System.out.println("</ERROR>");
               int exitVal = proceso.waitFor();
               System.out.println("EXITVAL: " + exitVal);
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (InterruptedException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
}lanzar.bat
java Lanzador %1 %2 %3Lanzador.java
import java.util.Vector;
public class Lanzador {
      * @param args
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          Repetitiva rpt=new Repetitiva();
          String rutaFicheros=args[0];
          String rutaResultado=args[1];
          String[] ficheros=args[2].split(":");
          Vector<String> ficheroDatos=new Vector<String>();
          for(int i=0;i<ficheros.length;i++){
               ficheroDatos.add(ficheros);
               System.out.println(ficheros[i]);
          System.out.println("RUTA DE FICHEROS: " + rutaFicheros);
          System.out.println("RUTA DE RESULTADOS: " + rutaResultado);
          System.out.println("CALCULAR");
          rpt.setRepetitiva(ficheroDatos, rutaFicheros, rutaResultado);
          rpt.calcular();
}I´ve got Resolutor.class in /res and the other two files (and the rest of the files for running) in /res/tarea.
If I execute /res/tarea/lanzar.bat from the command line everything works fine, it calls java and runs lanzador without problem.
The problem comes when I try to execute the batch file via Resolutor.class. It executes the batch file without problem, but it throws a *java.lang.NoClassDefFoundError: Lanzador* when launching the new java application.
Any ideas of how can I solve that problem. (It must do it via batch file).

Well, I tried putting in the bat file java -classpath .\tarea Lanzador %1 %2 %3 and didn´t work.
I ve tried the bat modification, and the directory in x.txt is k:\res instead of k:\res\tarea.
I´ve tried to modifiy it to java .\tarea\Lanzador and didn´t work so I have put a cd like the following and it appears to work.
cd tarea
java Lanzador %1 %2 %3Thanks for the replies.

Hi, I would like to ask about how to capture data from real time loop.

Hi,
Here is some overvier of my project:
I have done real time control using labview 9.0. I used PID controller.
In order to optimise this controller, I need to capture data from my sensor(input) and actuator (output).
1. For example while real time control is running. I need to capture 1000 sample data (sensor(input) and actuator (output)).
Then I will used these data for PID optimisation on the other loop without intefere my real time loop.
2. When PID optimisation is completed, I will sent its PID parameter to real time control loop.
3. These operation is done in parallel.
Anybody can help me to solve these. Your idea may solve my problem.
TQ

Typically you will have to use RT FIFO or Queue communication to avoid any impact to your time critical loop.
Best regards
Christian

Reading InputStream from Runtime.exec() and ffmpeg?

I've got a lot of things going on here and I'm having trouble debugging. I'm working on a streaming music player, and the platform only handles MP3 natively. Specifically, the method that handles incoming requests has to return an InputStream for further processing upstream (out of my visibility).
I'm trying to extend the music player to play AAC files with the extension ".m4a". To do this, my plan is to transcode from MP3 to AAC using Runtime.exec() and ffmpeg, and then return an InputStream that contains the MP3. This works fine if I use ffmpeg to transcode to a temp file, and then return a FileInputStream constructed from that temp file. But like I said, this is supposed to be a steaming music player, and the blocking for the ~30 seconds it takes to completely transcode to a file is too much of a delay.
So what I'm trying to do is have ffmpeg transcode to stdout, and then use Process.getInputStream() to return the InputStream that contains ffmpeg's stdout while the transcoding is still going on. This doesn't work and I'm not sure why. (I'm fairly new to java, and this is the first time I've used Runtime.) My player just hangs there. I know Runtime is picky about exhausting the stdout and stderr streams, so I'm not sure if it's something related to that, or if I somehow need to buffer the stdout before returning it, or if I need to run something in a different thread, or if I'm just completely barking up the wrong tree.
If anyone has any experience with something like this, or can point me at some code that implements something similar, I'd appreciate the help.
Below a sample of the code in question. Also, for what it's worth, all of the console messages that I put in there are printing, but the music doesn't play.
   public InputStream getStream(String uri) throws IOException
             System.out.println("Entering Factory.getStream()");
              System.out.flush();
            File file = new File(URLDecoder.decode(uri, "UTF-8"));
            if (file.exists())
                 if(file.getPath().toLowerCase().endsWith(".mp3")) {
                        // This code for playing MP3 files works correctly
                      System.out.println("Playing MP3");
                      System.out.flush();
                      InputStream in = new FileInputStream(file);
                      return in;
                 else if(file.getPath().toLowerCase().endsWith(".m4a")){
                      System.out.println("Playing M4A");
                      System.out.flush();
                      // Create array for ffmpeg command line
                        // This command line transcodes to STDOUT
                      String[] command = { this.ffmpeg_path,
                                                         "-i",
                                                         "input.m4a",
                                                         "-acodec",
                                                         "libmp3lame",
                                                         "-ac",
                                                         "2",
                                                         "-ab",
                                                         "256",
                                                         "-f",
                                                         "mp3",
                      // Begin transcoding with ffmpeg
                      System.out.println("Transcoding...");
                      System.out.flush();
                      Runtime runtime = Runtime.getRuntime();
                      Process ffmpeg = runtime.exec(command);
                      // Must exhaust error stream, or the application can become deadlocked.
                      System.out.println("Exhausting stderr...");
                      System.out.flush();
                      this.exhaustInputStream(ffmpeg.getErrorStream());
                      // Return ffmpeg's stdout as an input stream
                      System.out.println("Returning stdout...");
                      System.out.flush();
                      return ffmpeg.getInputStream();
                 else {
                      System.out.println("Unsupported Audio File");
                      System.out.flush();
                      return null;
            else
                // We aren't requesting a file, so let the API handle the request upstream...
                return super.getStream(uri);
     private void exhaustInputStream(final InputStream inputStream) {
              // Since InputStream.read() blocks, exhast the stream in a separate thread
              new Thread() {
                   public void run() {
                        try {
                             while(inputStream.read() >= 0) {
                                  // Just throw the bytes away
                        catch(IOException e) {
                             e.printStackTrace();
              }.start();
         }

Read this article
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

How to give path in Runtime. exec( )

Hi,
I am trying to create an user interface, in which, it should open a different file (for example, example.doc)when a button is clicked in the applet. let us say, the path for example.doc is "C:\\WINDOWS\\DeskTOP\\folder1".
I tried with the following code
Runtime.getRuntime().exec("C:\\WINDOWS\\Desktop\\folder1\\example.doc");
but, when I click on the button it is not opening example file and I am getting an exception. I am using Runtime.exec() command for the first time.Anybody can help me with this???

Since when was a document an executable? The main problem is many people think Runtime.exec () is the same thing as the command line. The answer is, it's not. Typing "example.doc" in the windows terminal emulator (also known as cmd.exe in Windows 2000/XP or command.com in others) will work because example.doc is opened with the application configured to open files with the ".doc" extension.
However, files ending with ".doc" are not executables. If you wish to open a ".doc" file with the associated application, try this: Runtime.getRuntime ().exec ("cmd /c example.doc"); Not that I don't know if this will work with command.com as I haven't tried, but it should work with cmd.exe without problems.
Hope it helps.
Cheers

How to pass output from one selection-as input to another selectiion??

From a user prompt will iniate many user table selections.   And the outputs of each table selection will be used as inputs for the next table selection
I reviewed variable Scope and inner and outer Declare—it would be a great help if some one could give me a example of the right approach??
see sample script :
Thank you so much for your help
---------------------------- Section_01_UserInput.sql -------------------------
-- THIS SECTION OF THE SCRIPT IS TO PROMPT THE USER FOR THE MODEL NAME AND THE ORGANIZATION CODE (e.I...M1,M2,M3...._)
-- THE ORGANIZATION WHERE MODEL WAS CREATED IS THE ONLY PLACE WHERE YOU WOULD FIND THE BILL_SEQUENCE_ID
-- THE COMMON ORGANIZATIONS DO NOT HAVE COMPONETS THEY JUST REFERENCE TO THE ORHANIZATION THAT MODEL WAS CREATED
SET VERIFY OFF
SET ECHO OFF
ACCEPT v_assemblyName CHAR DEFAULT myDefaultAssemblyName PROMPT 'Enter Assembly name:'
ACCEPT v_OrganizationCode CHAR DEFAULT myDefaultOrganizationCode PROMPT 'Enter the Org where the MODEL WAS CREATED :'
SELECT a.organization_code, a.organization_id, b.inventory_item_id, b.segment1, b.description
FROM mtl_parameters a, mtl_system_items_b b
WHERE a.organization_code = '&v_OrganizationCode'
AND
b.segment1 ='&v_assemblyName'
AND
b.organization_id = a.organization_id;
SET VERIFY ON
SET ECHO ON
----OUTPUT of the Section_01_UserInput.sql QUERY---
ORGANIZATION_CODE ORGANIZATION_ID INVENTORY_ITEM_ID SEGMENT1 DESCRIPTION
M1, 207, *[225957]* , CN927779, Sentinel Custom Desktop
----------------------------- Section_02_bom_structures_b.sql ------------------
-- List all option class Bill of Materials for a single ATO or PTO model
-- List of bill_sequence_id and all component_item_id's that belong to that
-- bill_sequence_id
SELECT a.assembly_item_id, a.bill_sequence_id, b.bom_item_type, b.component_item_id
FROM bom_structures_b a, bom_components_b b
WHERE a.assembly_item_id = *['225957']*
AND
b.bill_sequence_id = a.bill_sequence_id
AND
b.bom_item_type = '2'; -- OPTION Class's are identified by bom_item_type
----OUTPUT of the Section_02_bom_structures_b.sql QUERY---
ASSEMBLY_ITEM_ID ORGANIZATION_ID BILL_SEQUENCE_ID BOM_ITEM_TYPE BILL_SEQUENCE_ID COMPONENT_ITEM_ID
*[225957]* , 207 , *[90754]* 2 90754 *[297]*
*[225957]* , 207 , *[90754]* 2 90754 *[299]*
*[225957]* , 207 , *[90754]* 2 90754 *[301]*
----------------------------- Section_03A_bom_structures_b.sql-------------------
-- List all the components under the option class
-- When no components are found with bom_item_type ='4' which means that this assembly has no
-- components in the bom_components_b because the assembly is a child that is a option class.
-- We need to run this script with a bom_item_type ='2' and stored the component_item_id into MEMORY_assembly_id
-- and run script again by read from MEMORY_assembly_id and bom_item_type = '4';
SELECT a.assembly_item_id, a.organization_id, a.bill_sequence_id, b.bom_item_type, b.bill_sequence_id, b.component_item_id
FROM bom_structures_b a, bom_components_b b
WHERE a.assembly_item_id = '297'
AND
b.bill_sequence_id = a.bill_sequence_id
AND
b.bom_item_type = '4';
----OUTPUT of the Section_03A_bom_structures_b.sql QUERY---
ASSEMBLY_ITEM_ID ORGANIZATION_ID BILL_SEQUENCE_ID BOM_ITEM_TYPE BILL_SEQUENCE_ID COMPONENT_ITEM_ID
*[297]* 207 *[384]* 4 384 *[185]*
*[297]* 207 *[384]* 4 384 *[241]*
*[297]* 207 *[384]* 4 384 *[249]*
*[297]* 207 *[384]* 4 384 *[4747]*
*[297]* 207 *[384]* 4 384 *[4749]*
*[297]* 207 *[384]* 4 384 *[4751]*
=================================================================================================
note output FROM EACH SELECT that needs to be passed to the next SELECT statement are *[ ]* for example *['225957'] see below:*
----OUTPUT of the Section_01_UserInput.sql QUERY---
ORGANIZATION_CODE ORGANIZATION_ID INVENTORY_ITEM_ID SEGMENT1 DESCRIPTION
M1, 207, *[225957]* , CN927779, Sentinel Custom Desktop
----OUTPUT of the Section_02_bom_structures_b.sql QUERY---
ASSEMBLY_ITEM_ID ORGANIZATION_ID BILL_SEQUENCE_ID BOM_ITEM_TYPE BILL_SEQUENCE_ID COMPONENT_ITEM_ID
*[225957]* , 207 , *[90754]* 2 90754 *[297]*
*[225957]* , 207 , *[90754]* 2 90754 *[299]*
*[225957]* , 207 , *[90754]* 2 90754 *[301]*
----OUTPUT of the Section_03A_bom_structures_b.sql QUERY---
ASSEMBLY_ITEM_ID ORGANIZATION_ID BILL_SEQUENCE_ID BOM_ITEM_TYPE BILL_SEQUENCE_ID COMPONENT_ITEM_ID
*[297]* 207 *[384]* 4 384 *[185]*
*[297]* 207 *[384]* 4 384 *[241]*
*[297]* 207 *[384]* 4 384 *[249]*
*[297]* 207 *[384]* 4 384 *[4747]*
*[297]* 207 *[384]* 4 384 *[4749]*
*[297]* 207 *[384]* 4 384 *[4751]*
Edited by: user612347 on Mar 16, 2010 4:21 PM
Edited by: user612347 on Mar 16, 2010 4:57 PM

Hi,
Sorry, it's unclear what you want to do.
Whenever you have a problem, it helps to be as specific as you can.
Post a little sampel data (CREATE TABLE and INSERT statements) and the results you want from that data. Since your problem involves parameters, give a couple of sets of parameters, and the results you want for each set, given the same data.
Are you saying that, after the user enters one set of parameters, you will need to run a variation of this query:
SELECT a.assembly_item_id, a.organization_id, a.bill_sequence_id, b.bom_item_type, b.bill_sequence_id, b.component_item_id
FROM    bom_structures_b a, bom_components_b b
WHERE   a.assembly_item_id = '303'
AND
        a.organization_id = '207'
AND
        b.bill_sequence_id = a.bill_sequence_id
AND
        b.bom_item_type = '4';several times? What will be different each time? Will the hard-coded strings in the WHERE clause ('303', '207' and '4') be values from the earlier query?
Do you really want to run this query several times, or would you rather run one query, and have it produce results for all the relevant values? (That would probably be eaisest and less error-prone). When you post your desired results, post what you would most like to see. If something else is acceptable, describe it.
You can write SQL*Plus scripts to use parameters (substitution variables.
For example, you can write a query that says:
WHERE   a.assembly_item_id     = '&1'
AND     a.organization_id      = '&2'
AND     b.bill_sequence_id      = a.bill_sequence_id
AND     b.bom_item_type      = '&3';and call it like this
@Section_03A_bom_structures_b 303 207 4You can have a query output several such rows (for example:
@Section_03A_bom_structures_b 303 207 4
@Section_03A_bom_structures_b 304 298 3
@Section_03A_bom_structures_b 306 99   4), send all of that output to a SPOOL file, and then execute the SPOOL file.

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