Operating System Calls from APEX with Java and PL/SQL

Question about operating system calls from apex.
I created a java file which is wrapped with pl/sql like
create or replace java source named "ExternalCall" as
import java.io.*;
I do the steps from this web page http://www.oracle.com/global/de/community/tipps/oscalls/index.html
The page is in german, but for experienced users the code on this page says everything.
In apex i have an application which calls this function with the "move" command in a sql-report region.
Let's say move c:\work1\file.txt c:\work2\file.txt
Everything works fine on one host(pc) but if i want to transfer the file from my host to another one then
i get the messgage "no access" although i have read, write access on the other host.
By the way, on both hosts i have admin rights.
Why can't i transfer the file over a network ?
Thanks in advance for any kind of help.
Regards
Stefan

I guess you are working on a Windows host. In this case Oracle processes are running as Windows services with a build-in MS system account. This account has no access to network ressources. You have two ways to get out of your windows box:
Assign Oracle services a network enabled account, e.g. domain user with local administrator privileges. (I never tried this and I don't like to recommend it.)
Use a command script for copying files and use explicite authentication within this script:-
net use \\myserver\ipc$ tiger /user:scott
copy c:\temp\xxx1 \\myserver\share\temp
copy c:\temp\xxx2 \\myserver\share\temp
Michael

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Operating system calls from apex

Question about operating system calls from apex.
I created a java file which is wrapped with pl/sql like
create or replace java source named "ExternalCall" as
import java.io.*;
I do the steps from this web page http://www.oracle.com/global/de/community/tipps/oscalls/index.html
The page is in german, but for experienced users the code on this page says everything.
In apex i have an application which calls this function with the "move" command in a sql-report region.
Let's say move c:\work1\file.txt c:\work2\file.txt
Everything works fine on one host(pc) but if i want to transfer the file from my host to another one then
i get the messgage "no access" although i have read, write access on the other host.
By the way, on both hosts i have admin rights.
Why can't i transfer the file over a network ?
Thanks in advance for any kind of help.
Regards
Stefan
null

You say that "on both hosts i have admin rights".
Remember that Oracle doesn't log in as "you", so Oracle may not have rights to the remote host.
There are a lot of different permissions that can be assigned to java stored procedures. This chapter in the documentation might help:
http://download-east.oracle.com/docs/cd/B19306_01/java.102/b14187/chnine.htm#BABFBDGG
You might get better help from the JVM forum:
Java in the Oracle Database

Operative System call from Composition Environment 7.2

Hello all,
what is the way to execute a shell script from SAP Composition Environment 7.2 (only j2ee stack).
....On an ABAP engine I know that the solution is true with a transaction that create a external system call, but on j2ee?
thank you!!

Hi Rajesh,
Please try to clear cookies and temp file from your browser. and try again. if issue still persist, then try again later
Hope it helps
Regards
Arun

Cross platform operating system calls from Java

For our application we need to call an external program to perform FTP. We use ncftp as it's available on all the server platforms our clients use (Sun, HP, Linux, Windows). Up to now we've been using a Java program that listens to the Oracle pipe and sends a string to the OS.
Now we are using 8i we thought it would be better to use Java within Oracle as this should reduce problems due to the external program not running. On Windows it works fine, but on Linux runtime.exec does not seem to take account of the system path. If I send something like '/usr/bin/ncftpput ...' it works, but I can't rely on the executable being in that directory although it should be somewhere in the path. I want to just pass 'ncftpput ...'.
Ideally I want to be able to make the code OS independent, but would consider doing something in the Java part to detect the OS and adapt accordingly, perhaps by using a shell e.g. '/bin/sh -c ncftpput ...', but I've had problems with that using the whole command line and can I rely on having a specific shell on all *nix systems?
At some point we'd like to do all the FTP from within Oracle, but that looks like a bigger project.
Any ideas/suggestions?
Thanks
Steve

Steve,
To determine the OS, you should be able to check the System properties. As an example, when I run this (quick and dirty) sample code, I can see that os.name=Windows NT on my Windows instance:
CREATE OR REPLACE JAVA SOURCE NAMED "envTest" AS public class envTest {
public static void getEnvVar() {
System.getProperties().list(System.out);
CREATE OR REPLACE PACKAGE envTest IS
     PROCEDURE getEnvVar;
END;
CREATE OR REPLACE PACKAGE BODY envTest IS
     PROCEDURE getEnvVar IS
     LANGUAGE JAVA NAME 'envTest.getEnvVar()';
END;
To see the output after executing envTest.getEnvVar, map System.out to DBMS_OUTPUT before running it, as follows:
set serveroutput on
begin
dbms_java.set_output(100000);
end;
Hope this helps,
-Dan
http://www.compuware.com/products/devpartner/db/oracle.htm
Debug PL/SQL and Java in the Oracle Database

System log shows operating system call recv failed(error no.73)

hi all,
here i have some doubt in system log please clarify me,
here in my (sm21)system log files i find more no of logs for dispatcher and it indicates operating system call recv failed(error no.73)
system log Short Text shows:
Operating system call &5&5&4 failed (error no. &>E5)
The specified operating system call was returned with an error.
For communication calls (receive, send, etc) often the cause of errors are network problems.
It could also be a configuration problem at operating system level. (file cannot be opened, no space in the file system etc.).
what is means

Hello,
Yes, you are right, these kind of problems (OS Error 73) are usually caused by network issues. Error 73 means 'connection reset by peer'. In most cases, this is because the connection was interupted by the communication partner or an active network component between.
I provide you some recommendations:
- Check your Network environment. You can use NIPING tool to diagnose it (note 500235), check your MTU stability.
- Check note 27320 - keep alive and gui_auto_logout profile param
- Also you can implement note 1002075 for a possible solution
I hope this helps you.
Regards,
Blanca

Calling Operating System Commands from PL/SQL using java

Calling Operating System Commands from PL/SQL - The Java Way
wlth help of given thread link,
Calling OS Commands from Plsql
but i had user privilege problem
Declare
x Varchar2(2000);
Begin
x := OSCommand_Run('/tmp/sri/GROUP_ho.sh');
DBMS_OUTPUT.Put_Line(x);
End;
o/p;
can't exec: /tmp/sri/GROUP_ho.sh lacks user privilege
i done the grant privillage also
part
dbms_java.grant_permission('abcd', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
dbms_java.grant_permission('abcd', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
dbms_java.grant_permission('
abcd', 'SYS:java.io.FilePermission','<<ALL FILES>>', 'execute');
again
get
can't exec: /tmp/sri/GROUP_ho.sh lacks user privilege
same error;

Process management at the OS level should prevent execution continuing in the calling code until the command has completed (either successfully or with error).
If the low level java code were to spawn child process threads then execution could continue, but I'm guessing the Java function your talking about doesn't do that and just calls the operating system to execute the command and waits for the returning code to come back.

System Call from Java, problem LD_LIBRARY_PATH

I use class Runtime to invoke Operating System Call.
I want to run OS command gpg (gnu program for encrypting/ decrypting files).
What is interesting, when I run my sqlplus script from system user (used for database installation) call ends with success.
Running script from other os users or machines ends with -1 code and error message:
"ld.so.1: gpg: fatal: libiconv.so.2: open failed: No such file or directory"
gpg uses libraries given LD_LIBRARY_PATH (/opt/gnupg/lib:/usr/lib:/usr/local/lib)
I think that is the problem. Is there a workaround for that??
Best regard
Grzegorz

Maybe related to the fact that the PATH environment variable is unset then re-initialized by Oracle to PATH = /usr/local/bin:/bin:/usr/bin. Try using absolute path for the OS commands.
Kuassi
- blog http://db360.blogspot.com/
- book http://db360.blogspot.com/2006/08/oracle-database-programming-using-java_01.html

I fail to start the sap server with error:Operating system call recv failed

I fail to start the sap server in SAP R3 Management Console and the message in the syslog was :
R/3 Basis System: Operating system call           recv failed (error no. 10053)
Is there any one could tell me how to resolve the problem or give me some advice?I will appreciate him/her very much.Thank you.

trc file: "dev_disp", trc level: 1, release: "620"
Sun May 07 13:14:30 2000
kernel runs with dp version 3(ext=1) (@(#) DPLIB-INT-VERSION-3)
length of sys_adm_ext is 304 bytes
systemid   560 (PC with Windows NT)
relno      6200
patchlevel 0
patchno    674
intno      20020600
pid        3628
***LOG Q00=> DpSapEnvInit, DPStart (00 3628) [dpxxdisp.c   978]
     shared lib "dw_xml.dll" version 674 successfully loaded
     shared lib "dw_xtc.dll" version 674 successfully loaded
     shared lib "dw_stl.dll" version 674 successfully loaded
Sun May 07 13:14:32 2000
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Sun May 07 13:14:37 2000
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***LOG GZZ=> 2 possible network problems detected - check tracefile and adjust the DNS settings [dpxxtool2.c 3212]
MtxInit: -2 0 0
DpShMCreate: sizeof(wp_adm)          12784     (752)
DpShMCreate: sizeof(tm_adm)          1690816     (8412)
DpShMCreate: sizeof(wp_ca_adm)     18000     (60)
DpShMCreate: sizeof(appc_ca_adm)     6000     (60)
DpShMCreate: sizeof(comm_adm)     192000     (384)
DpShMCreate: sizeof(wall_adm)     (22440/34344/56/100)
DpShMCreate: SHM_DP_ADM_KEY          (addr: 001E0040, size: 1977824)
DpShMCreate: allocated sys_adm at 001E0040
DpShMCreate: allocated wp_adm at 001E0560
DpShMCreate: allocated tm_adm_list at 001E3750
DpShMCreate: allocated tm_adm at 001E3778
DpShMCreate: allocated wp_ca_adm at 00380438
DpShMCreate: allocated appc_ca_adm at 00384A88
DpShMCreate: allocated comm_adm_list at 003861F8
DpShMCreate: allocated comm_adm at 00386210
DpShMCreate: allocated ca_info at 003B5010
DpShMCreate: allocated wall_adm at 003B5018
MBUF state OFF
Sun May 07 13:14:38 2000
EmInit: MmSetImplementation( 2 ).
<ES> client 0 initializing ....
<ES> InitFreeList
<ES> block size is 1024 kByte.
Using implementation std
<EsNT> Memory Reset enabled as NT default
<EsNT> EsIUnamFileMapInit: Initialize the memory 2458 MB
<ES> 2457 blocks reserved for free list.
ES initialized.
***LOG Q0K=> DpMsAttach, mscon ( db01) [dpxxdisp.c   9115]
CCMS: Initalizing shared memory of size 20000000 for monitoring segment.
CCMS: start to initalize 3.X shared alert area (first segment).
DpMsgAdmin: Set release to 6200, patchlevel 0
MBUF state PREPARED
MBUF component UP
DpMBufHwIdSet: set Hardware-ID
***LOG Q1C=> DpMBufHwIdSet [dpxxmbuf.c   941]
DpMsgAdmin: Set patchno for this platform to 674
Release check o.K.
Sun May 07 13:15:18 2000
ERROR => W2 (pid 4776) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W2
Sun May 07 13:15:38 2000
ERROR => W5 (pid 4548) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W5
ERROR => W8 (pid 4592) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W8
ERROR => W9 (pid 4584) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W9
ERROR => W12 (pid 4676) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W12
ERROR => W13 (pid 4272) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W13
my types changed after wp death/restart 0xbf --> 0xb7
Sun May 07 13:15:58 2000
ERROR => W4 (pid 4888) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W4
ERROR => W6 (pid 4788) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W6
ERROR => W15 (pid 4596) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W15
Sun May 07 13:16:18 2000
ERROR => W1 (pid 4892) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W1
ERROR => W3 (pid 4904) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W3
ERROR => W7 (pid 4000) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W7
ERROR => W10 (pid 4864) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W10
my types changed after wp death/restart 0xb7 --> 0xb5
Sun May 07 13:16:38 2000
ERROR => W0 (pid 4900) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W0
ERROR => W11 (pid 4500) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W11
ERROR => W14 (pid 4636) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W14
ERROR => W16 (pid 3532) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W16
my types changed after wp death/restart 0xb5 --> 0x80
DP_FATAL_ERROR => DpEnvCheck: no more work processes
DISPATCHER EMERGENCY SHUTDOWN ***
DpModState: change server state from STARTING to SHUTDOWN
Sun May 07 13:16:42 2000
***LOG Q0M=> DpMsDetach, ms_detach () [dpxxdisp.c   9341]
MBUF state OFF
MBUF component DOWN
***LOG Q05=> DpHalt, DPStop ( 3628) [dpxxdisp.c   7883]

My Mac operating system is OSX 10.4.11 and I "replaced" my older version of Firefox with a newer one that does not open with my system. Can you send me an older version of Firefox? Thanks!

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Whenever i try to manually sync my iPhone with a new playlist on iTunes (on my laptop), it always gets stuck in step 7, Waiting for changes to be applied, and then nothing happens. I'm running the latest operating systems on both my iPhone 5 and macbook

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Hello:
I am not a programmer but i nedd a routine to do an operating system call and execute a batch or shell set of commands,
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Or maybe Runtime.exec is enough for you. MUCH simpler than JNI, as long as a shell executing a script is all you want.
Read this first:
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%

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Operating System Calls from APEX with Java and PL/SQL

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