Get CGI env variables in a database procedure using new APEX Listener

I already posted this question in the Apex Listener forum and still no replies after one week. The original post is here:
Get CGI environment from APEX Listener within database procedure
So please forgive me for posting in this forum as well, but there is a lot more activity here.
I'd like to know how I can get the CGI environment from the APEX Listener. For example, if I want to write a procedure that inserts into a table the originating IP Address of the client making the web request, how do I get it?
I am familiar with the Oracle Http Server and mod_plsql, and I know how to call OWA_UTIL.GET_CGI_ENV to get this sort of information. How do I do it using the APEX Listener?
In particular, how do I do this when calling a custom procedure (not in an Apex workspace)? When I try it now, I get an error from owa_util. The cgi env seems to be empty or not initiated (owa.num_cgi_vars is null or zero).
Specific set-up:
I have a web server running the latest JDK, Glassfish, and 1.1.4 Apex Listener. It connects to another server running the latest 11.2 database. Apex is installed and running, but I am not really developing a traditional Apex application in a workspace. I mainly use it like you would use mod_plsql. In other words, I have custom pl/sql packages that are called directly via URL. The requests are forwarded by the listener to the database, and the DB executes the procedure and returns output using htp.p to send text back to the browser. And it works just fine for this purpose. But if I want to call GET_CGI_ENV to get information like the IP Address, web browser making the request, etc. I can't seem to get it with the OWA packages.
Can anyone shed some light on this? If Apex Listener is not designed to do this, is there some kind of workaround I can use to forward this sort of information to the database for each request?

I have not tried owa_util.print_cgi_env from SQL Workshop yet, as I have not created an APEX workspace. I have had no need for a workspace because of the way I am using APEX as a method for calling custom packages and stored procedures. In other words, I am using APEX strictly for the mod_plsql functionality. I just use it to forward requests to the database to execute pl/sql code, but I don't develop anything in APEX. My application is a web service with no screens and no direct user interface, which is why I did not need to create APEX forms. The front end is a mobile app that makes calls to the web service.
But I have tried calling owa_util.print_cgi_env in one of my stored procedures and it returns no data, even when calling it from the web front-end.
So I am beginning to believe that if the OWA toolkit works with APEX, then it must only be enabled when invoked within a workspace. Stand-alone procedures can be called via APEX, but apparently doing so does not initiate the CGI env variables. This set-up used to work under the OHS with mod_plsql. The embedded pl/sql gateway also works this way.
Is there a procedure call that APEX is making to set the environment before each SQL Workshop request?
My security model currently blocks access to all packages and procedures except for my custom packages. I am using the APEX Listener configuration to allow only the packages listed by name in a white list. But I thought I allowed all access when I first tried calling the OWA packages. I'll have to try that again.

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Using Refcursor is one way you can do that ->
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for 32-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
Elapsed: 00:00:00.21
satyaki>
satyaki>
satyaki>create or replace procedure r_arg(
2                                      choice in number,
3                                      b in out sys_refcursor
4                                   )
5 is
6    str   varchar2(500);
7 begin
8     str := 'select * from emp';
9     open b for str;
10 exception
11    when others then
12      dbms_output.put_line(sqlerrm);
13 end;
14 /
Procedure created.
Elapsed: 00:00:01.84
satyaki>
satyaki>
satyaki>declare
2    rec_x emp%rowtype;
3    w sys_refcursor;
4 begin
5    dbms_output.enable(1000000);
6    r_arg(1,w);
7    loop
8      fetch w into rec_x;
9        exit when w%notfound;
10        dbms_output.put_line('Employee No: '||rec_x.empno||' - '||
11                             'Name: '||rec_x.ename||' - '||
12                             'Job: '||rec_x.job||' - '||
13                             'Manager: '||rec_x.mgr||' - '||
14                             'Joining Date: '||rec_x.hiredate||' - '||
15                             'Salary: '||rec_x.sal||' - '||
16                             'Commission: '||rec_x.comm||' - '||
17                             'Department No: '||rec_x.deptno);
18     end loop;
19     close w;
20 exception
21    when others then
22       dbms_output.put_line(sqlerrm);
23 end;
24 /
Employee No: 9999 - Name: SATYAKI - Job: SLS - Manager: 7698 - Joining Date: 02-NOV-08 - Salary: 55000 - Commission: 3455 - Department No: 10
Employee No: 7777 - Name: SOURAV - Job: SLS - Manager: - Joining Date: 14-SEP-08 - Salary: 45000 - Commission: 3400 - Department No: 10
Employee No: 7521 - Name: WARD - Job: SALESMAN - Manager: 7698 - Joining Date: 22-FEB-81 - Salary: 1250 - Commission: 500 - Department No: 30
Employee No: 7566 - Name: JONES - Job: MANAGER - Manager: 7839 - Joining Date: 02-APR-81 - Salary: 2975 - Commission: - Department No: 20
Employee No: 7654 - Name: MARTIN - Job: SALESMAN - Manager: 7698 - Joining Date: 28-SEP-81 - Salary: 1250 - Commission: 1400 - Department No: 30
Employee No: 7698 - Name: BLAKE - Job: MANAGER - Manager: 7839 - Joining Date: 01-MAY-81 - Salary: 2850 - Commission: - Department No: 30
Employee No: 7782 - Name: CLARK - Job: MANAGER - Manager: 7839 - Joining Date: 09-JUN-81 - Salary: 4450 - Commission: - Department No: 10
Employee No: 7788 - Name: SCOTT - Job: ANALYST - Manager: 7566 - Joining Date: 19-APR-87 - Salary: 3000 - Commission: - Department No: 20
Employee No: 7839 - Name: KING - Job: PRESIDENT - Manager: - Joining Date: 17-NOV-81 - Salary: 7000 - Commission: - Department No: 10
Employee No: 7844 - Name: TURNER - Job: SALESMAN - Manager: 7698 - Joining Date: 08-SEP-81 - Salary: 1500 - Commission: 0 - Department No: 30
Employee No: 7876 - Name: ADAMS - Job: CLERK - Manager: 7788 - Joining Date: 23-MAY-87 - Salary: 1100 - Commission: - Department No: 20
Employee No: 7900 - Name: JAMES - Job: CLERK - Manager: 7698 - Joining Date: 03-DEC-81 - Salary: 950 - Commission: - Department No: 30
Employee No: 7902 - Name: FORD - Job: ANALYST - Manager: 7566 - Joining Date: 03-DEC-81 - Salary: 3000 - Commission: - Department No: 20
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.48
satyaki>
satyaki>Regards.
Satyaki De.

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p = r.exec( "cmd.exe /c set" );
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p = r.exec( "env" );
BufferedReader br = new BufferedReader
( new InputStreamReader( p.getInputStream() ) );
String line;
while( (line = br.readLine()) != null ) {
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String key = line.substring( 0, idx );
String value = line.substring( idx+1 );
envVars.setProperty( key, value );
// System.out.println( key + " = " + value );
return envVars;
public static void main(String args[]) {
try {
Properties p = ReadEnv.getEnvVars();
System.out.println("the current value of TEMP is : " +
p.getProperty("TEMP"));
catch (Throwable e) {
e.printStackTrace();
Thanks to W.Rijnders for the W2K fix.
An update from Van Ly :
I found that, on Windows 2003 server, the property value for "os.name" is actually "windows 2003." So either that has to be added to the bunch of tests or just relax the comparison strings a bit: else if ( (OS.indexOf("nt") > -1)
|| (OS.indexOf("windows 2000") > -1 )
|| (OS.indexOf("windows 2003") > -1 ) // works but is quite specific to 2003
|| (OS.indexOf("windows xp") > -1) ) {
else if ( (OS.indexOf("nt") > -1)
|| (OS.indexOf("windows 20") > -1 ) // probably is better since no other OS would return "windows" anyway
|| (OS.indexOf("windows xp") > -1) ) {
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On Windows, pre-JDK 1.2 JVM has trouble reading the Output stream directly from the SET command, it never returns. Here 2 ways to bypass this behaviour.
First, instead of calling directly the SET command, we use a BAT file, after the SET command we print a known string. Then, in Java, when we read this known string, we exit from loop. [env.bat]
@set
@echo **end
[java]
if (OS.indexOf("windows") > -1) {
p = r.exec( "env.bat" );
while( (line = br.readLine()) != null ) {
if (line.indexOf("**end")>-1) break;
int idx = line.indexOf( '=' );
String key = line.substring( 0, idx );
String value = line.substring( idx+1 );
hash.put( key, value );
System.out.println( key + " = " + value );
The other solution is to send the result of the SET command to file and then read the file from Java. ...
if (OS.indexOf("windows 9") > -1) {
p = r.exec( "command.com /c set > envvar.txt" );
else if ( (OS.indexOf("nt") > -1)
|| (OS.indexOf("windows 2000") > -1
|| (OS.indexOf("windows xp") > -1) ) {
// thanks to JuanFran for the xp fix!
p = r.exec( "cmd.exe /c set > envvar.txt" );
// then read back the file
Properties p = new Properties();
p.load(new FileInputStream("envvar.txt"));
Thanks to JP Daviau
// UNIX
public Properties getEnvironment() throws java.io.IOException {
Properties env = new Properties();
env.load(Runtime.getRuntime().exec("env").getInputStream());
return env;
Properties env = getEnvironment();
String myEnvVar = env.get("MYENV_VAR");
To read only one variable : // NT version , adaptation for other OS is left as an exercise...
Process p = Runtime.getRuntime().exec("cmd.exe /c echo %MYVAR%");
BufferedReader br = new BufferedReader
( new InputStreamReader( p.getInputStream() ) );
String myvar = br.readLine();
System.out.println(myvar);
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public static void main(String args[]){
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System.out.println("PATH : " + System.getProperty("java.library.path"));
System.out.println("CLASSPATH : " + System.getProperty("java.class.path"));
System.out.println("SYSTEM DIR : " +
System.getProperty("user.home")); // ex. c:\windows on Win9x system
System.out.println("CURRENT DIR: " + System.getProperty("user.dir"));
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p.getProperty("PATH")+"}");
System.out.println("LIBPATH: {" +
System.getProperty("java.library.path")+"}");
gives the current value of PATH is:
{/home/hware/bin:/usr/local/bin:/usr/xpg4/bin:/opt/SUNWspro/bin:/usr/ccs/bin:
/usr/ucb:/bin:/usr/bin:/home/hware/linux-bin:/usr/openwin/bin/:/usr/games/:
/usr/local/games:/usr/ccs/lib/:/usr/new:/usr/sbin/:/sbin/:/usr/hosts/:
/usr/openwin/lib:/usr/X11/bin:/usr/bin/X11/:/usr/local/bin/X11:
/usr/bin/pbmplus:/usr/etc/:/usr/dt/bin/:/usr/lib:/usr/lib/lp/postscript:
/usr/lib/nis:/usr/share/bin:/usr/share/bin/X11:
/home/hware/work/cdk/main/cdk/../bin:/home/hware/work/cdk/main/cdk/bin:.}
LIBPATH:
{/usr/lib/j2re1.3/lib/i386:/usr/lib/j2re1.3/lib/i386/native_threads:
/usr/lib/j2re1.3/lib/i386/client:/usr/lib/j2sdk1.3/lib/i386:/usr/lib:/lib}
on my linux workstation. (java added all those execpt /lib and /usr/lib). But these two lines aren't the same on window either:
This system is windows nt the current value of PATH is:
{d:\OrbixWeb3.2\bin;D:\jdk1.3\bin;c:\depot\cdk\main\cdk\bin;c:\depot\
cdk\main\cdk\..\bin;d:\OrbixWeb3.2\bin;D:\Program
Files\IBM\GSK\lib;H:\pvcs65\VM\win32\bin;c:\cygnus
\cygwin-b20\H-i586-cygwin32\bin;d:\cfn\bin;D:\orant\bin;C:\WINNT\system32;C:\WINNT;
C:\Program Files\Dell\OpenManage\Resolution Assistant\Common\bin;
d:\Program Files\Symantec\pcAnywhere;
C:\Program Files\Executive Software\DiskeeperServer\;C:\Program Files\Perforce}
LIBPATH:
{D:\jdk1.3\bin;.;C:\WINNT\System32;C:\WINNT;d:\OrbixWeb3.2\bin;D:\jdk1.3\bin;
c:\depot\cdk\main\cdk\bin;c:\depot\cdk\main\cdk\..\bin;
d:\OrbixWeb3.2\bin;D:\Program Files\IBM\GSK\lib;
H:\pvcs65\VM\win32\bin;c:\cygnus\cygwin-b20\H-i586-cygwin32\bin;d:\cfn\bin;
D:\orant\bin;C:\WINNT\system32;
C:\WINNT;C:\Program Files\Dell\OpenManage\ResolutionAssistant\Common\bin;
d:\Program Files\Symantec\pcAnywhere;
C:\Program Files\Executive Software\DiskeeperServer\;C:\Program Files\Perforce}

ODI Procedure: Using Variable Logical Schema

Hi!
i wrote a PL\SQL procedure inside an odi procedure, using options, variables etc.
now we need to execute the procedure in different logical schemas.
We've at least 20 different logical schemas and to semplify the maintenance we'd like to pass the logical schema as an Option or something similar,
is it possibile to do this with a procedure?
The version of ODI is 11.1.1.5.0 and the targets are only Oracle DB.

I've got a question : are all you schema in the same server (database) ?
If so, you can LIST the schemas with a SQL Statement in the "command as SOURCE" tab.
example :
select owner as SCHEMA
from all_tables
where ...or a SQL Statement in ODI MASTER_Repository to get the logical schema :
select lschema_name as SCHEMA
from snp_lschema t1
where ...And in the "command as destination" tab, you execute the PL SQL, but you use the result of SCHEMA.
As a result, if you have 40 schema retrieved by the first SQL Statement, ODI will execut your PL/SQL statement 40 times, changing the SCHEMA value each time.
And, in the first tab (command as destination), you use a generic Oracle User that have access to all schema of the dabase (or at least, the 40 schema you want).

Setting env variables through scheduler

Hi All,
I am trying to run a PERL script which makes database connection using DBI module through scheduler. The script works fine if I run it manually but from scheduler it fails because it can't fine libclnt.sh.10.1 lib file. I have LD_LIBRARY_PATH & LIBPATH set in my .profile and i guess when scheduler runs the external job, it creates a new shell but doesn't inherit the .profile settings (same as cron). I tried setting these env variables in PERL script itself but even then it's not working. I tried my theory by running this script from shell but without running .profile and it fail with exact same error.
I want to know how you guys are handling this situation? How to set or call .profile from scheduler job so that all the env variable get set properly?
OS: SUSE Linux
DB: 11gR2
Thanks
Daljit Singh

Thanks for the reply, I am doing the same. I have create a very simple script where I am setting all the env variables and I can see that those variable are getting set but still, it doesn't work. There is something special when we run .profile, that time along with env variables, something else also get set (which i dont know and trying to find out) which makes PERL to search the oracle library in oracle_home. I can see that by turning libraries debugging on. Here is a small snippet when .profile doesn't get execute but the env variables are set:
25039: find library=libclntsh.so.10.1 [0]; searching
25039: search cache=/etc/ld.so.cache
25039: search path=/lib64/tls/x86_64:/lib64/tls:/lib64/x86_64:/lib64:/usr/lib64/tls/x86_64:/usr/lib64/tls:/usr/lib64/x86_64:/usr/lib64 (system search path)
25039: trying file=/lib64/tls/x86_64/libclntsh.so.10.1
25039: trying file=/lib64/tls/libclntsh.so.10.1
25039: trying file=/lib64/x86_64/libclntsh.so.10.1
25039: trying file=/lib64/libclntsh.so.10.1
25039: trying file=/usr/lib64/tls/x86_64/libclntsh.so.10.1
25039: trying file=/usr/lib64/tls/libclntsh.so.10.1
25039: trying file=/usr/lib64/x86_64/libclntsh.so.10.1
25039: trying file=/usr/lib64/libclntsh.so.10.1
25039:
install_driver(Oracle) failed: Can't load '/usr/lib/perl5/site_perl/5.8.8/x86_64-linux-thread-multi/auto/DBD/Oracle/Oracle.so' for module DBD::Oracle: libclntsh.so.10.1: cannot open shared object file: No such file or directory at /usr/lib/perl5/5.8.8/x86_64-linux-thread-multi/DynaLoader.pm line 230.
at (eval 3) line 3
Compilation failed in require at (eval 3) line 3.
Perhaps a required shared library or dll isn't installed where expected
at /home/oracle/scripts/test 9
See it is searching for this lib in some system path and not using any of env variable. I want to know where it's getting this value from. Also if I run .profile then, this path changes and inludes what is mentioned in LD_LIBRARY_PATH and then it works.
Thanks
Daljit Singh

Get CGI env variables in a database procedure using new APEX Listener

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