Call rules from PL/SQL

Hi,
I have ruleset and it being called by RL function.
Is it possible that I can call that rules or rule function from PL/SQL, if yes could you please help me with some ideas. (without involving BPEL)
Thanks
Sreejit

<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Michael Kleiser ([email protected]):
Look at this: http://www.oracle.com/oramag/code/tips2001/index.html?021201.html
It`s a java-function which calls a os-command.
I haven4t testet it.
In this forum http://www.dbasupport.com/forums/showthread.php?threadid=3703
someone asked the same question as you.
I hope this helps you.<HR></BLOCKQUOTE>
I've tried the tip above without success. Has anyone got it to work?
null

Similar Messages

Advantages and Disadvantages of calling java from PL/SQL

Hi,
I have one doubt. What are all the advantages and disadvantages of the calling java from PL/SQL?
In actual scenario the java program will be in the Application server side. It will do the operation and it will store the result in Data base. But in this case (calling java from PL/SQL), we are loading the java program in the Data base and it is doing the operations.
I have seen many posts are coming regarding loading jar files into the database. Actually the jar will deploy in to Application server. Is there any difference instead of keeping in the Application server side?
Then I have read,
advantages:
-> java having lot API's. so PL/SQL can use that API's.
-> if we can not do anything in PL/SQL. we can do it using this mtd(calling java from PL/SQL).
My questions:
-> could you explain what are all the things we can not do but we can do using "calling java from PL/SQL" method?
-> is there any other advantages?
Disadvantages:
-> the performance is very slow in calling java from PL/SQL.
My questions:
-> Then why others are loading java files and jar files into database?
-> is there any other disadvantages?
Could you explain about this one? It will be more helpful to others also…
Regards,
kk

Hi,
You can read the free first chapter of my book @ http://www.amazon.com/gp/product/1555583296/ (see details then Excerpt)
Kuassi http://db360.blogspot.com

Call php from PL/SQL

Hello !
i want to call PHP from PL/SQL(procedure).
Is it possible .
If yes then how.
if no then is there any other way to do it.
Regards
null

<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Michael Kleiser ([email protected]):
Look at this: http://www.oracle.com/oramag/code/tips2001/index.html?021201.html
It`s a java-function which calls a os-command.
I haven4t testet it.
In this forum http://www.dbasupport.com/forums/showthread.php?threadid=3703
someone asked the same question as you.
I hope this helps you.<HR></BLOCKQUOTE>
I've tried the tip above without success. Has anyone got it to work?
null

Call report from pl-sql routine

I just got started on the report-tool, so, this might be a very basic question, but, would appreciate your
response.
I have a pl-sql routine registered as a concurrent program. How do I make call to report-builder from this routine.
Thxs,

Hello Chirag,
If you want to invoke and run a report from your PL/SQL code in the database, you can do so by installing and using the SRW package supplied with Reports. This package allows you to run parametrized report jobs on a specified Reports Server from your PL/SQL program and track the job status. Please take a look at the documentation for this package in the Publishing Reports manual on OTN at: http://download-west.oracle.com/docs/html/A92102_01/toc.htm.
On the other hand, if you just need to invoke the Reports Builder program from your PL/SQL routine, you would need to use the default builtin for calling external applications from PL/SQL.
Thanks,
The Oracle Reports Team.

Call RFC From PL/ SQL

Hi Everybody, i have some question:
Its Possible from PL / SQL, call RFC Functions?...
Please can you give me some examples or tell me if is technicaly impossible to do that?..
Thanks a lot.
Greattings
Wilmer Figueroa

Hey,
It is not that easy,
SAP didn't published an package to link PL/SQL to RFC,
however, it is possible with some work:
the PL/SQL can execute command on operation system of the DB
for example 'dir' in windows or 'ls' in unix,
instead of running dir/ls you can execute a program that will execute an RFC in the SAP system.
the program can be developed by .Net connector, see:
NW RFC SDK - is there a guide somewhere?

Calling WS from PL/SQL using WS-security

Hi All,
Has anyone experience with calling a Webservice from PL/SQL and use WS-security to encrypt the contents? If not; maybe with java stored procedures in 9i? (in other words: using WS-security without JDeveloper).
with regards,
Michiel Kuperus

Right now what you can do is use SSL via the Java stack calling Web services ... the "call out" examples at:
http://otn.oracle.com/tech/webservices/database.html
show how under a PL/SQL wrapper the same java web services runtime from the middle tier running in the DB can invoke Web services. That stack supports SSL. It does not currently support WS-Security which is an emerging spec from the OASIS standards body.
Oracle, however, is currently working on building WS-Security into its Web services stack. This is however,a post-9.0.4 (the upcoming release of Oracle9iAS) project. Bear in mind that WS-Security is still an evolving standard and while there are some early implementations they will evolve over time as the spec itself solidifies.
Mike.

ERROR:SRW Packages to call report from PL/SQL.

Hi,
I am facing the following problem while calling a report from PL/SQL Block.
This is my code
SRW.Start_Debugging;
     MYPLIST :=SRW_PARAMLIST(SRW_PARAMETER('',''));
     SRW.ADD_PARAMETER(myPlist,'GATEWAY'     ,'http:..............');
     SRW.ADD_PARAMETER(myPlist,'USERID'      ,'CGIA_AUTO/AUTO_DEV@ipaddress/ORCL');
     SRW.ADD_PARAMETER(myPlist,'SERVER'      ,'rep_cgian');
     SRW.ADD_PARAMETER(myPlist,'REPORT'     ,'PGIRCGIC047.rdf');
     SRW.ADD_PARAMETER(myPlist,'DESTYPE'     ,'file');
     SRW.ADD_PARAMETER(myPlist,'DESFORMAT'     ,'pdf');
     SRW.ADD_PARAMETER(myPlist,'DESNAME'     ,'\\ipaddress\CGIA_FormPrint\WatchFolder\OTHERS\'||Z.CS_REMARKS_BL||'_'||Z.CS_CHQ_NO||'_'||M_SEQ_NO||'-'||Z.CS_FLEX_07||'-'||Z.CS_FLEX_08||'.pdf');
     SRW.ADD_PARAMETER(myPlist,'PARAMFORM'     ,'NO');
     SRW.ADD_PARAMETER(myPlist,'P_1'     ,Z.CS_BANK_CODE);
     SRW.ADD_PARAMETER(myPlist,'P_2'     ,Z.CS_BAD_ACNT_NO);
     SRW.ADD_PARAMETER(myPlist,'P_3'     ,Z.CS_CHQ_BOOK_ID);
     SRW.ADD_PARAMETER(myPlist,'P_4'     ,Z.CS_CHQ_NO);
     SRW.ADD_PARAMETER(myPlist,'P_5'     ,Z.CS_CHQ_NO);
     MYIDENT:=SRW.RUN_REPORT(MYPLIST);
MYSTATUS := SRW.REPORT_STATUS(MYIDENT);
     SRW.STOP_DEBUGGING;
*** Length of Paramlist : 1
OK : Parameter added : GATEWAY=http://...
*** Length of Paramlist : 2
OK : Parameter added : USERID=CGIA_AUTO/AUTO_DEV@ipaddress/ORCL
*** Length of Paramlist : 3
OK : Parameter added : SERVER=rep_cgian
*** Length of Paramlist : 4
OK : Parameter added : REPORT=PGIRCGIC047.rdf
*** Length of Paramlist : 5
OK : Parameter added : DESTYPE=file
*** Length of Paramlist : 6
OK : Parameter added : DESFORMAT=pdf
*** Length of Paramlist : 7
OK : Parameter added :
DESNAME=\\ipaddress\CGIA_FormPrint\WatchFolder\OTHERS\CUST000115_102024_16--.pd
f
*** Length of Paramlist : 8
OK : Parameter added : PARAMFORM=NO
*** Length of Paramlist : 9
OK : Parameter added : P_1=SDNB
*** Length of Paramlist : 10
OK : Parameter added : P_2=7000674257
*** Length of Paramlist : 11
OK : Parameter added : P_3=7000
*** Length of Paramlist : 12
OK : Parameter added : P_4=102024
*** Length of Paramlist : 13
OK : Parameter added : P_5=102024
Starting run_report: building url
*** Building URL (RUN_REPORT)
OK : URL built :
http://ipaddress/reports/rwservlet?&USERID=CGIA_AUTO%2FAUTO_DEV%40ipaddress%2FORCL&SERVER=rep_cgian&REPORT=PGIRCGIC047.rdf&DESTYPE=file&DESFORMAT=
pdf&DESNAME=%5C%5Cipaddress%5CCGIA_FormPrint%5CWatchFolder%5COTHERS%5CCUST00
*** Submitting HTTP Request
*** using URL
:http://ipaddress/reports/rwservlet?&USERID=CGIA_AUTO%2FAUTO_DEV%ORCL&SERVER=rep_cgian&REPORT=PGIRCGIC047.rdf&DESTYPE=file&DESFORMAT
=pdf&DESNAME=%5C%5Cipaddress%5CCGIA_FormPrint%5CWatchFolder%5COTHERS%5CCUST0001
OK : Request submitted - Return stream : <?xml version = '1.0' encoding =
'ISO-8859-1' standalone = 'yes'?>
<serverQueues>
<error code="503"
component="REP" message="You did not specify the name of a
report."/>
</serverQueues>
Here in this case even though i specify the report id in the parameter,debugger message says that 'You did not specify the name'.
The same code is working in some other server and giving the pdf output.
Thanks in advance for any clarification.

Hello Chirag,
If you want to invoke and run a report from your PL/SQL code in the database, you can do so by installing and using the SRW package supplied with Reports. This package allows you to run parametrized report jobs on a specified Reports Server from your PL/SQL program and track the job status. Please take a look at the documentation for this package in the Publishing Reports manual on OTN at: http://download-west.oracle.com/docs/html/A92102_01/toc.htm.
On the other hand, if you just need to invoke the Reports Builder program from your PL/SQL routine, you would need to use the default builtin for calling external applications from PL/SQL.
Thanks,
The Oracle Reports Team.

Advantages of calling java from PL/SQL

Hi experts,
Could any one tell me the advantages of calling java program from PL/SQL?
Regards,
karthi

Hi,
You can read the free first chapter of my book @ http://www.amazon.com/gp/product/1555583296/ (see details then Excerpt)
Kuassi http://db360.blogspot.com

Calling report From PL/SQL

Hi,
Can any one help me for, how to call a report made in D2K report 3.0 from the database PL/SQL
THANKS
Regards
Gaurav

Hi,
I resolved the problem by chaning the DESTYPE from 'cache' to 'File'. Is there anyway to display my report output instead of saving it in as a file?
Thanks in advance
Thanks & Rgds,
M Thiyagarajan

Calling function from PL/SQL block

Hi,
A very simple question.
A have a function called "test1" in my database. It is there i double chekked.
I would like to call this function from a block:
DECLARE
BEGIN
TEST1(1202);
END;
This gives me an error.
Why is this?

user610868 wrote:
Hi,
A very simple question.
A have a function called "test1" in my database. It is there i double chekked.
I would like to call this function from a block:
DECLARE
BEGIN
TEST1(1202);
END;
This gives me an error.
Why is this?Hello
A very very basic thing to do when you get an error is to include details of it. That helps narrow it down from one of the 1000s of potential Oracle errors it could be.
Anyway, a function returns a value, and in PL/SQL you need to capture that otherwise you'll get "an error". Modify your code like so
DECLARE
l_Test1Val VARCHAR2(4000); --CHANGE THIS TO BE THE SAME AS THE RETURN TYPE FOR YOUR FUNCTION
BEGIN
l_Test1Val := TEST1(1202);
END;HTH
David
Edited by: Bravid on Oct 25, 2011 3:57 PM
removed a ;

Call DLL from PL-SQL block

Hello all,
I want to call a function located in an external DLL from a PL-SQL block. I execute the followin steps :
1. Create a database library pointing to the external DLL :
create or replace library libstk as 'C:\SUMMIT\libstkdte_s_trade1.dll'
2. Create the definition and the body package :
CREATE OR REPLACE PACKAGE dllcall IS
     FUNCTION s_trade (
          s_in VARCHAR2 )
RETURN VARCHAR2;
PRAGMA RESTRICT_REFERENCES(s_trade, WNDS);
end dllcall;
show errors
CREATE OR REPLACE PACKAGE BODY dllcall IS
FUNCTION s_trade (s_in IN VARCHAR2) RETURN VARCHAR2
IS EXTERNAL
NAME "s_trade"
LIBRARY libstk
PARAMETERS (s_in           STRING,
RETURN STRING);
END dllcall;
show errors
set serveroutput on
3. Start the PL-SQL block calling the external function. And I got the foolowing error :
1 begin
2 dbms_output.put_line ( dllcall.s_trade ( '<Request> ' ||
3 '<CurveId>MYCURVE</CurveId> ' ||
4 '<Mode>02</Mode> ' ||
5 '<ExpCcy>GBP</ExpCcy> ' ||
6 '<AsOfDate>20001023</AsOfDate> ' ||
7 '<Entity>***SUMMIT-XML***</Entity> ' ||
8 '</Request>') );
9* end;
10
11 /
begin
ERROR à la ligne 1 :
ORA-06520: PL/SQL: Error loading external library
ORA-06522: Unable to load DLL
ORA-06512: at "V31.DLLCALL", line 0
ORA-06512: at line 2
The "Read - Execute permissions" of the DLL file was given to "Authentified users" .
What's wrong ?
TIA
PS : NT2K environment, DB 8.1.7
R. Charles Emile

Yes, a RPC was set up.
Listner.ora
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = Server1)(PORT = 1521))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = NMP)(SERVER = Server1)(PIPE = ORAPIPE))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\Oracle\Ora81)
(PROGRAM = extproc)
tnsnames.ora
extproc_connection_data =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(CONNECT_DATA = (SID = PLSExtProc))
Thanks
RCE

Call DLL from pl/sql

Hi Every one
I have to call one microssoft dll from the pl/sql using form .
How can I do it.
Prashant

That likely means that the DLL call failed.
Some basics.
A DLL exposes an interface where it lists the names of the proc/func exposed (together with a number/ordinal for each).
The Win32 LoadLibrary() call is used to load a DLL. This returns a handle that is then used by subsequent calls to the DLL.
In order to make the actual call, the caller needs to know the address of the procedure/function in the DLL. The GetProcAddress() is the Win32 call I remember using to get the address to call (but I think it has been deprecated since).
Anyway, for the caller to call that proc/func in the DLL, it needs these steps:
- load that library
- get the "address" of that proc/func in the DLL
- make the call
The DLL is then executed - in the address space of the caller. Yes, the DLL's code segment is loaded once and shared amongst how ever many executables are using that DLL. But the DLL has no data segment - the data segment of the DLL lives in the address space of the caller.
Should the DLL do something dirty/wrong, it can crash the caller by corrupting its address space. Or the DLL call could simply fail, throw an exception and terminate unexpectedly.
This is the basics of the a DLL call - and also why Oracle wants to run that DLL call externally using the EXTPROC interface, so as not to risk that DLL compromising the memory space of the Oracle server process.
This makes it a tad more complex now as the Oracle server process makes a call to EXTPROC (an IPC/RPC call) - and the EXTPROC process makes the DLL call (as described above).
If that EXTPROC process crashes, the call that the Oracle server process made also terminates unexpectedly.
Why can the EXTPROC process crash? Well, there are more meaningful errors returned when the DLL fails to load in my experience. So I expect that your DLL was found and that the EXTPROC process did a successful LoadLibrary() call - and even made a successful GetProcAdress() (or whatever call).
But when the actual call to the DLL func/proc was made, an error resulted (incorrect parameter passing, invalid data types being passed, invalid memory being referenced, etc).
This error caused a fatal error and terminated the EXTPROC process. No meaningful error was therefore returned to the Oracle server process - so it throws the exception "lost RPC connection to external process".
Hope this was not too technical and you got the gist of it.

Calling Webservice from Pl/sql

Hi All,
Can any one give me a detailed example, to call a web service from a pl/sql package. preferably by POSt method.
Thank you!

check this out for some ideas: http://www.bloggingaboutoracle.org/archives/calling-web-services-from-plsql

"random" issue calling sqlldr from pl/sql

Oracle SE-One 11.2.0.2
Oracle Linux 5.6 x86-64
Given this proc:
PROCEDURE    "SQLLDR3" (v_control_file IN varchar2)
           IS
v_command varchar2(220) := '/u01/app/oracle/admin/control/sqlldr3.script ';
v_sbj varchar2(90);
c_program_name varchar2(20) := 'SQLLDR3';
BEGIN
        app.Log(C_PROGRAM_NAME, 'CALLING JAVA HOST_COMMAND.');
        COMMIT;
Host_Command (p_command => v_command||v_control_file);
        app.Log(C_PROGRAM_NAME, 'RET FROM JAVA HOST_COMMAND.');
        COMMIT;
EXCEPTION
         WHEN OTHERS THEN
         v_sbj := 'SQLLDR3 stored procedure error: '||v_control_file;
     send_email('ITdatabase@mycompany','ITdatabase@mycompany',                    v_sbj, sqlerrm);
         v_sbj := 'SQLLDR3 stored procedure error: '||v_control_file;
       send_email('ITdatabase@mycompany','dwgroup@mycompany',
                   v_sbj, sqlerrm);
END;Host_command is simply
PROCEDURE Host_Command (p_command IN VARCHAR2)
AS LANGUAGE JAVA
NAME 'Host.executeCommand (java.lang.String)';and I know nothing about java.
The referenced host command 'sqlldr3.script' is a shell script that invokes sqlldr.
The procedure is a common procedure called from several different procedures within a couple of packages
This process is executed several dozen times every week, loading data into a data warehouse from a variety of external sources.. It is run during the week, and on weekends. It is run manually and from dbms_scheduler. It has been running flawlessly for several years.
On May 18 I upgraded from 11.2.0.1 to 11.2.0.2
On May 25 a scheduled job at 0630 hung in the above procedure. The last successful execution had been just one hour prior. All executions over the weekend hung and the loads had to be managed manually to meet the business requirement. The first execution after midnight Sunday (early Monday morning) executed properly. The same pattern repeated this last weekend.
In trying to narrow it down, I added some "we made it to here" type messages to the shell script that actually called sqldr, as well as the references to 'app.log' immediately preceding and following the call to host_command. app.log is a common procedure that writes a message to a program log table. In the case of the shell script, one of the tracing messages was the very last statement executed by the script.
What we observed was that we got the program log message immediately preceding the host call, and we got all of the messages from the shell script, indicating that sqlldr itself executed with a rc=0, and the shell script executed cleanly. But we did not get the program log message immediately following the return from the host command. It was at that point that the procedure was hung and had to be killed.
I found note 757524.1 which looks very promising, and I have modified the shell script accordingly -- adding 'silent=feedback' to the sqlldr command.
What leaves us really scratching our heads is the fact that the problem only occurs (so far) during a given time window. Even during that window, it does not occur on a test database that is an rman duplicate of the prod db. This is very obscure, but thought it worth tossing out to see if anyone has any ideas off the top of their head.
In order to eliminate some if the interfaces I am going to replace the calls to sqlldr with external tables, but would still like to find an answer to "WHY", if possible.

Billy Verreynne wrote:
Do you have Grid Infrastructure running (for ASM for example)?
If GI starts the database instance, or a GI listener creates the dedicated server process, then the actual o/s user for an external process created by a database Java procedure, is grid and not oracle. Which can cause environment and permission problems as the expectation is that it will execute as the server process owner, oracle.
Another potential issue is environment inheritance. The external process created, inherits its environment from its parent process (who in turn in a background spawned server process that also inherited its environment).
Also, as a Listener can start a dedicated server process, a dedicated server process can have a different environment from a shared server process (created when the instance originally started). After all, the Listener can be bounced and at that time get a different/newer environment than database shared server processes, job processes, and so on.
Which means different results when executing external stuff via Java as environments can differ from db session to db session.
Two things to keep in mind. These environments are static and could also be stale. For example, it will be unaware of o/s group changes, despite being created after those o/s changes are made - as it inherits an environment that existed prior to those changes being made.
Second thing to keep in mind is not to trust the inherited environment to be sane for the executable you want to run in that Java created external process. Never mind that it could be stale. You have no idea what environment the parent process passed to this external child process - and it could contain stuff that can break the executable you want to run in this external process.
For these reasons I never execute an executable directly via a Java stored proc call. I use a 2 step approach. UTL_FILE creates a shell script with the external command to execute. The Java stored proc executes it. The shell script sets the environment to what is expected - and the external command is executed using that environment.
I actually do more than this - shell script permissions/group ownership is changed and it is executed as another o/s user. This secures the database/grid o/s users as external commands are executed as another user. Kind of like the approach used by scheduler for external application jobs. Execution is done via ssh and trusted keys - the other user who the commands are run as, trusts ssh localhost connections from oracle/grid.
The main thing though that makes this approach works though is that the Java stored proc executes a self-rolled external shell script containing the external command(s) to execute. Controlling the execution environment is important.Thanks for the response, Billy.
Yes, this is an ASM database, but (fwiw) stand-alone -- no cluster, no RAC.
If I follow you correctly, it sounds like we're already taking care of everything you mention. The java procedure ("Host_Command") takes its input argument as an os command and executes it. In this case, that command is the name of a shell script, so "host_command" is not executing sqlldr (directly) but is executing a shell script that "just happens" to be calling sqlldr. Yes, just like we do for cron jobs, that script insures it has set all necessary environment variables. It sets some basic ones, then sources oraenv to get the oracle environment correct. And the shell script itself always processes correctly as evidenced by the trace messages I added, always exits cleanly. The problem occurs somewhere in the crack between the shell script exit and control coming back into the PL/SQL procedure that called 'host_command'. And so far it only occurs between 0630 on Saturdays and 2359 on Sundays. That time window is the really bizarre part of it. Exact same code, any other time, works as expected.
As luck would have it, we implemented the suggestion from note 757524.1 (adding 'silent=feedback' to the sqlldr command string) on Sunday afternoon, and the one job that started after that still hung.

Calling JAVA from PL/SQL

Hello,
Are there any PL/SQL code examples on how to call a JAVA program from a when-button-pressed trigger event?
Thanks much.

Hi,
I was able to import the JAVA code via the "Import Java Classes". Now, what PL/SQL statements do I put in my "when-button-pressed" trigger to execute this JAVA code? Any samples around, preferably with examples of parameter passing.
Thanks in advance!!

Call rules from PL/SQL

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