Perl Script from PL/SQL

Hi,
I am trying to design a trigger which launches a Perl script as external procedure. Ias it possible to do that?
I have found only examples of external C/Java programs.
Thanks,
Rafael

Have a look at http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:952229840241
But I don't know if it would be a good thing to do this in a trigger? Maybe it could be better to let the trigger insert a job using dbms_job.
What does the perl script do?
greetings
Freek D
Hi,
I am trying to design a trigger which launches a Perl script as external procedure. Ias it possible to do that?
I have found only examples of external C/Java programs.
Thanks,
Rafael

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How to call external Perl routines from Pl/SQL - Urgent

Available software in the Test Environment:
1. Sun Unix 2.8
2. Oracle 8.1.7 ( 8i)
3. Perl 5
Iam trying to call/execute perl scripts from PL/SQL using the DEMO_RDBMS.mk. I am able to call C scripts from PL/SQL, but actually want to call Perl scripts.
The steps followed for for C are -
1. Create and compile a simple C program to execute a unix command (eg., touch a file).
2. Make a shared library of the above compiled program (object), i.e., load the compiled object module into a dynamic load library.
3. Declare the above library in Oracle using SQL*Plus.
4. Define a PL/SQL function or procedure to call the external routine.
5. Test the external routine.
The above steps run good for a C program, but step 2 fails when run for a Perl script.
When I tried to use the following command for step 2 -
make -f $ORACLE_HOME/rdbms/demo/demo_rdbms.mk extproc_callback \
SHARED_LIBNAME=cmd_lib.so \
OBJS=tst_cmd.pl
got the following error -
ld: fatal: file tst_cmd.pl: unknown file type.
ld: fatal: File processing errors. No output written t cmd_lib.so
*** Error code 1
This gives me an indication that demo_rdbms.mk does not understand/interpret Perl scripts. Going through the demo_rdbms.mk suggests the same.
My questions is - How do we call external Perl scripts/routines from PL/SQL ??
Do I have to get a different version of "demo_rdbms.mk" ?
PS: The perl scripts used above (tst_cmd.pl) is error free and works as intended in the unix environment.

Iam trying to call/execute perl scripts from PL/SQL using the DEMO_RDBMS.mk. I am able to call C scripts from PL/SQL, but actually want to call Perl scripts. Well, C is a "compiler" language and Perl is interpreted. In a sense, C is not "scripts".
When I tried to use the following command for step 2 -
make -f $ORACLE_HOME/rdbms/demo/demo_rdbms.mk extproc_callback \
SHARED_LIBNAME=cmd_lib.so \
OBJS=tst_cmd.pl
got the following error -
ld: fatal: file tst_cmd.pl: unknown file type.
ld: fatal: File processing errors. No output written t cmd_lib.soI guess this compiles an extproc "stub" with your object file, generating an external procedure. So the object file really needs to be an object file :-)
My questions is - How do we call external Perl scripts/routines from PL/SQL ??I'd guess you need an embedded Perl interpreter in the external procedure.
Not much help though I'm afraid :-/
Cheers
Fredrik

Calling perl script from PLSQL

Hi All,
I have created Java stored procedure and oracle function to execute the os commnad, this works fine for calling batch scripts but when i used same function to call perl script,
like how we call in batch script
perl <script name> the sql gets hanged.
Is it possible to call perl like this?
or is their any other way to call from plsql
Thanks Chandra

Are you able to run that perl script at DOS command line?
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Calling Pearl script from PL/SQL

Anyone know how to call a pearl script from PL/SQL?

Hi Rick,
I checked all the forums for external procedures. I don't see any examples posted as you mentioned for calling external procedures. I did look into the documentation and it talks mainly about C and JAVA. And it looked like depending on the language, different things need to be done. I would appreciate if you could be more specific on where I could find examples related to calling PERL scripts.

Can any one tell me how can i call a shell script from pl/sql

i like to call shell script from pl/sql procedure.
can any one suggest how can i do this

Have you not mastered in asking the same kind of question ?
First do write a script...
no one will spoon feed you.
How can i call a shell script from procedure
How to call Shell Script from pl/sql block
-Sk

How to call a perl script from an apple script

Hi All,
How to Call a perl Script from an apple script.
Pls Give Your comments.
Thanx & Regards,
Esther

Applescript to call a perl script named "/tmp/x.pl" passing an argument "world"
do shell script "/usr/bin/perl /tmp/x.pl world"
or if the script is given the executable atttribute (chmod +x /tmp/x.pl),
do shell script "/tmp/x.pl world"
Perl script "/tmp/x.pl" that prints a string using a passed argument
#!/usr/bin/perl
print "Hello $ARGV[$1]\n";

Shell or perl script from OS command_Sender File Channel

Hi All,
I am trying to execute a perl script from the File Sender Channel(NFS), OS command Before Message Processing. The script works fine if i run it from the shell. But when PI calls the script, the script does not get executed. The audit logs mention that the OS command has been called.
I tried using:
1) /<fullpath>perlScript.pl /<fullpath>filename.dat
2) perl /<fullpath>perlScript.pl /<fullpath>filename.dat
Both these commands work fine when i execute them on the shell.
I am on solaris and PI 7.0. The permission for the perl script and input files are all 777.
FYI.. i am using this perl script to transpose a complex file and make it # delimited file.
I have already read the blogs for OS command and executed some sample scenarios successfully.
I tried to call a shell script that does the same functionality as the perl script. Even that does not work.
Also, wrote a shell script to call the perl script inside it. No luck.
eg:
touch /fullpath>/create_before.dat
perl /<fullpath>perlScript.pl /<fullpath>filename.dat
touch /<fullpath>/create_after.dat
In this case, the create_before.dat and create_after.dat is getting created but the perl is not called. I know this because i cant see the output files of the perl script.
Regards,
Balaji
Edited by: Balaji M on Oct 30, 2008 2:36 PM

Hi,
The problem is fixed. The shell or perl both have logic to transpose a non industry starndard file to the delimited file which PI can use an FCC to pick up.
This was the fix:
we need to mention the shell the script is going to be run in.
In the shell script we mentioned --> *#!/usr/bin/bash* as the first line
normally, when we use the command -- which bash on the unix command prompt, it tells us the path for the bash used.
another option --> #!/usr/bin/ksh
again, on the command prompt -- which ksh command will tell us what ksh is being used.
If the script is a simple one that does copy or move commands, i believe we need not use the commands above. But is a good practice to have them in the script.
Regards,
Balaji
Edited by: Balaji M on Nov 3, 2008 4:38 PM

Running sql script from pl/sql

Is there any standard way to run an external sql script from pl/sql
I really appreciate any assistance.

If you want, I did start writing a function reading and executing statements out of sql script with utl_file.
can I issue this command in PL/SQL: EXECUTE IMMEDIATE '@filename.sql';
the function could be extended for DDL, session setting, etc...
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Laurent

Copying SQL Script from Oracle SQL Developer into Excel with formatting

I need to copy a SQL Script into Excel in order to develop some VBA code. Is there any nice way that I can copy SQL Script from Oracle SQL Developer into Excel and retain its formatting? I am a stickler for having legible, readable SQL and like to have all my columns lined up and aliases lined up. When we used to use SQL Navigator, the tab formatting seemed to copy and paste just fine. Now that we have migrated to Oracle SQL Developer, the formatting seems to get all messed up.
And suggestions are greatly appreciated and Thanks in advance for your review and am hopeful for an answer.
Thanks.
PSULionRP

I suppose you want a real tabulator instead of spaces. You can configure this in the preferences (SQL Formatter - Oracle). You have to apply it then to your existing code (e.g. CTRL-F7), but new code should get it right from the start.
Hope that helps,
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Calling sql script from pl/sql block

Hi
I want to call a sql script from pl/sql block.
like
CREATE OR REPLACE procedure DataBaseExport(user_name in varchar2, pwd in varchar2)
as
begin
execute immediate '@ C:\Documents and Settings\umesh\emp.sql';
end DataBaseExport;
/

Try something like this -
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "Host" AS
import java.io.*;
public class Host
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                    //finalCommand[0] = "C:\\winnt\\system32\\cmd.exe"; // Windows NT/2000
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                    finalCommand[1] = "-c";
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          final Process pr = Runtime.getRuntime().exec(finalCommand);
         pr.waitFor();
         new Thread(new Runnable()
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                  BufferedReader br_in = null;
               try
                    br_in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
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                           try {Thread.sleep(100); } catch(Exception e) {}
                    br_in.close();
               catch (IOException ioe)
                    System.out.println("Exception caught printing process output.");
                    ioe.printStackTrace();
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                 try {
                          br_in.close();
                      } catch (Exception ex) {}
     ).start();
     new Thread(new Runnable()
       public void run()
            BufferedReader br_err = null;
            try
               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) {}
               br_err.close();
           catch (IOException ioe)
               System.out.println("Exception caught printing process error.");
               ioe.printStackTrace();
          finally
              try
                      br_err.close();
               catch (Exception ex) {}
      ).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;
CREATE OR REPLACE PROCEDURE Host_Command (p_command IN VARCHAR2)
AS LANGUAGE JAVA
NAME 'Host.executeCommand (java.lang.String)';
--- THE PERMISSIONS ---
call dbms_java.grant_permission('SYSTEM', 'SYS:java.io.FilePermission', '<<ALL FILES>>', 'read ,write, execute, delete');
call dbms_java.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
call dbms_java.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');And, finally,
create or replace procedure call_sql_file(usr in varchar2,
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                                          host_str in varchar2)
is
begin
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exception
when others then
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end;Now, you can pass all the argument in order to execute that file.
N.B.: Not Tested...
Regards.
Satyaki De.

Call a unix script from pl/sql package

Hi,
Using 11.2.0.3 on AIX.
Is it possible to call unix script from pl/sql package?
I am cretaing a file in a directory but would like this to automatically be written to an archive directory as well.
Could either use 2 utl_file.put_lines to 2 separate directories or 1 utl_file and cal script to archive file in another directory.?
Thoughts?
Thanks

user5716448 wrote:
What am I doing wrong?think how file name will look like:
SQL> select 'file_name' || to_char(sysdate,'DD/MM/YYYY HH24:MI:SS') from dual;
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How to run the perl script from java ?

Hi , I need to run the pearl script from the server and to get the result of the script thro' java using SSH
Is there any 3rd party SSH API in java ?
Please help me out
thanks in advance
karthik

This seems like a very strange thing to want to do.
What is the perl script doing?
Do other programs (not some shell script) access this server-side perl script from a different machine?
If so how do they do it?
What currently triggers the perl script to execute?
What currently handles the output from the perl script?
If you can answer these questions (and understand the answers) you should be able to come up with a different approach to this.
You do not really want to call a remote perl script from a Java program, you want to achieve the effect you think that would have if you could do it.
So find the answers to the above questions, write them on 3" x 5" cards and lay them out on your desk.
What flow of control needs to happen? Which piece of code needs to produce or consume which piece of data?
If that fails, ask you self or who ever is making you do this what are the use-cases?
If you do not know what use-cases are or do not understand them well enough try reading
Use Case Modeling (The Addison-Wesley Object Technology Series) by Kurt Bittner and Ian Spence (Paperback - Aug 30, 2002)
http://www.amazon.com/s/ref=nb_ss_gw/002-7908514-4043267?url=search-alias%3Dstripbooks&field-keywords=use+cases&x=0&y=0
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You MUST understand WHAT you are trying to achieve before you can decide HOW you are going to achieve it.

How to pass arguments to a Unix shell script from PL/SQL?

We want to run a Linux shell script from PL/SQL (10g). This is our code to run the script only and it works fine.
dbms_scheduler.create_job
          job_name=>'RUN_LINUX_SCRIPT_' || v_job_name,
          job_type=>'EXECUTABLE',
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          enabled=>TRUE,
          auto_drop=>FALSE
        );Now we have a requirement to pass 2 arguments to the .sh file. In the .sh file the 2 arguments are defined as $1 and $2.
I used this method.
dbms_scheduler.create_job
          job_name=>'RUN_LINUX_SCRIPT_' || v_job_name,
          job_type=>'EXECUTABLE',
          job_action=>'/vol0/FileLoadDir/Bank/DATA_FILES/spell_check2.sh',
          --job_action=>'/vol0/FileLoadDir/Bank/DATA_FILES/spell_check2.sh /vol0/FileLoadDir/Bank/DATA_FILES/ebill2.fmt_form_strings_.txt /vol0/FileLoadDir/Bank/DATA_FILES/abcdefghij.txt',
          --job_action=>'#!/bin/bash spell /vol0/FileLoadDir/Bank/DATA_FILES/ebill2.fmt_form_strings_.txt > /vol0/FileLoadDir/Bank/DATA_FILES/abcde.txt',
          number_of_arguments => 2,
          enabled=>FALSE,
          auto_drop=>FALSE,
          comments => 'Testing by Channa'
      DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE (
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        argument_value          => '/vol0/FileLoadDir/Bank/DATA_FILES/ebill2.fmt_form_strings_.txt');
      DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE (
        job_name                => 'RUN_LINUX_SCRIPT_' || v_job_name,
        argument_position       => 2,
        argument_value          => '/vol0/FileLoadDir/Bank/DATA_FILES/abcdefghij.txt');
      DBMS_SCHEDULER.enable (name => 'RUN_LINUX_SCRIPT_' || v_job_name);But I get an error saying:
STANDARD_ERROR="/vol0/FileLoadDir/Bank/DATA_FILES/spell_check2.sh: line 4: read: `/vol0/FileLoadDir/Bank/DATA_FILES/ebill2.fmt_form_strings_.txt': not a valid identifier
/vol0/FileLoadDir/Bank/DATA_FILES/spell_check2"

Check this post:
pass parameter from PL/SQL to Unix "as is"

Execution of Perl Script from HTML DB page.

Hi All,
I have a Perl script which takes 5 parameters and fetches data from one database and insert that data into my database table which is a master table for my project.
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Thanks & Regds.
Kumaraswamy RJ.

Check out MOS note 1515609.1.
Regards,
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Call Shell Script from PL-SQL

Hello All,
I have been using some well known Java Class and Procedures to execute shell scripts from PL-SQL.
The different environments I was using before were
1)
Operating System (Server) AIX version 5
Oerating System(Client) Microsoft Windows XP Service Pack 2
Oracle Database Version Oracle Database 10g Enterprise Edition Release
10.2.0.1.0
2)
Operating System (Server) Red Hat Linux 3.4.5-2
Oerating System(Client) Microsoft Windows XP Service Pack 2
Oracle Database Version Oracle Database 10g Enterprise Edition Release
10.2.0.1.0
But suddenly I had to drop and recreate the Databases on 1st (AIX) environment
and
reinstall the Operating System (Server) Red Hat 3.4.5-2 on IInd environment stated above (which obviously means the reinstallation of Oracle Database there!)
Now the shell script(through PL-SQL)is executing smoothly for the IInd (Linux) environment[b] but not executing for the Ist (AIX) environment
and I am not getting how to solve the problem.
I have given all the permissions to users, shell scripts and all as they were before.
Can you please help?
Regards,
Abhijit.

Hello All,
I have been using some well known Java Class and Procedures to execute shell scripts from PL-SQL.
The different environments I was using before were
1)
Operating System (Server) AIX version 5
Oerating System(Client) Microsoft Windows XP Service Pack 2
Oracle Database Version Oracle Database 10g Enterprise Edition Release
10.2.0.1.0
2)
Operating System (Server) Red Hat Linux 3.4.5-2
Oerating System(Client) Microsoft Windows XP Service Pack 2
Oracle Database Version Oracle Database 10g Enterprise Edition Release
10.2.0.1.0
But suddenly I had to drop and recreate the Databases on 1st (AIX) environment
and
reinstall the Operating System (Server) Red Hat 3.4.5-2 on IInd environment stated above (which obviously means the reinstallation of Oracle Database there!)
Now the shell script(through PL-SQL)is executing smoothly for the IInd (Linux) environment[b] but not executing for the Ist (AIX) environment
and I am not getting how to solve the problem.
I have given all the permissions to users, shell scripts and all as they were before.
Can you please help?
Regards,
Abhijit.

Perl Script from PL/SQL

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