Java Stored Proc Return Types

Hi,
I am new to writting java stored procedures. I have some custom network functionality that I have previously implemented in java and I want to make this functionality available to the database.
In particular my java gets a list of files. What is the best way to return this list of files to PL/SQL. It is a basic list of just the file name, that within PL/SQL i want to itterate through and perform actions based on the names.
At the moment in Java the method returns a simple array of strings.
Please advise.
Thanks
Ben

Ben,
In my opinion, returning an array of strings (as you say you are already doing) is the best way. Are you having trouble with this? If I remember correctly, you will need to convert your java array into a data structure that can be passed to a PL/SQL routine (as a parameter). Is this where you are having difficulty? I recall some sample code on Oracle's OTN Web site that demonstrates how to do this. Have you seen it?
http://www.oracle.com/technology/tech/java/sqlj_jdbc/index.html
Good Luck,
Avi.

Similar Messages

Java stored proc: returning array?

Hi,
I have had to implement a Java stored procedure that accepts a nested table as an argument from aPL/SQL package. The class must manipulate the data and then create an object or an array that can be returned to the package for subsequent interpretation and use.
I'd assuemd that I could reverse the process when the argument was accepted; i.e. assemble the data as an oracle.sql.ARRAY type and return that. The Javadoc I have advises that the constructors for this class are for 'internal' use only. Also, it requires a connection and I don'treally want to have to open another connection to the schema.
Another alternative was to return an array of BigDecimal but this would require an equivalent VARRAY on the PL/SQL side. As I don't know the side of the array until run-time I cannot safely declare a VARRAY of an arbitrary size.
As you acn probalby tell, I'm a bit of a novice so any help would be greatly appreciated.
Thanks

Thanks for the reply Avi.
That's fine: it's a valid question! I started to explain the original problem but it became too long. Basically I needed the ability to define an array that could be dynamically sized depending on the rowcount resulting from a BULK COLLECT during runtime. As admitted, I'm a novice and believed this couldn't be done in PL/SQL, and, to cut a very long-winded story short after seeking more experienced advice, used the dynamic allocation techniques in Java which is more familiar terriory to me.
I nearly have the Java solution working, thanks to Oracle documentation and a couple of hints towards the end of this thread. I'd also been perusing those links you recommended.
I have since realised I can simulate a dynamic array with a nested table and using EXTEND. If thre are other techniques available, I'd be grateful or some pointers! All in all the whole process has been beneficial if a little time consuming.
Thanks again
The original problem is as follows: I have a nested table, each row of which contains one column for each month of the year recording payments. Some of these months can contain 0 and therefore, a 5,000 foot view shows that result set is fragmented. Basically the payments have to be rearranged as though they were contiguous monthly payments prior to subsequent processing. Because of the way the rows needed to be grouped for processing, the algorithms for defragmentation were becoming really complex. Admitting my PL/SQL limitations I slunk off to ask further advice and

Java stored proc from proxy Java classes generated from a web service?

Hi gurus,
I have searched "Java Stored Procedure" on this forum but could not find what I am looking for, so I have to post again.
I need to use a web service and my client app is written in PowerBuilder 11 (Sybase), which claims that it will create a datawindow from a web service. Well, it turned out that PB can only handle simple stuff (it works with a very simple wsdl from the internet) but can't handle more complex ones that we need to use. So I am thinking about using Oracle JDeveloper(JDev) to create the web service proxy for the web service and then load it into Oracle as a Java stored procedure so that PowerBuilder can call the procedure. JDev succsfully generated the proxy and a few Java classes. My question is, do I need to load all the classes into the database? If yes, will the reference to the package work? For example, in a JDev generated class (the soap client class), it has package MyJdev.proxy; at the top. Or, will it work if I load all the classes included in package /MyJdev/proxy into the database?
Thank you very much for any help.
Ben

For the java stored proc called from pl/sql, the example above that uses dynamic sql should word :
CREATE OR REPLACE PACKAGE MyPackage AS
TYPE Ref_Cursor_t IS REF CURSOR;
FUNCTION get_good_ids RETURN VARCHAR2 ;
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t;
END MyPackage;
CREATE OR REPLACE PACKAGE BODY MyPackage AS
FUNCTION get_good_ids RETURN VARCHAR2
AS LANGUAGE JAVA
NAME 'MyServer.getGoodIds() return java.lang.String';
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t
IS table_cursor Ref_Cursor_t;
good_ids VARCHAR2(100);
BEGIN
good_ids := get_good_ids();
OPEN table_cursor FOR 'SELECT id, name FROM TableA WHERE id IN ( ' | | good_ids | | ')';
RETURN table_cursor;
END;
END MyPackage;
public class MyServer{
public static String getGoodIds() throws SQLException {
return "1, 3, 6 ";
null

Can we call a Java Stored Proc from a PL/SQL stored Proc?

Hello!
Do you know how to call a Java Stored Proc from a PL/SQL stored Proc? is it possible? Could you give me an exemple?
If yes, in that java stored proc, can we do a call to an EJB running in a remote iAS ?
Thank you!

For the java stored proc called from pl/sql, the example above that uses dynamic sql should word :
CREATE OR REPLACE PACKAGE MyPackage AS
TYPE Ref_Cursor_t IS REF CURSOR;
FUNCTION get_good_ids RETURN VARCHAR2 ;
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t;
END MyPackage;
CREATE OR REPLACE PACKAGE BODY MyPackage AS
FUNCTION get_good_ids RETURN VARCHAR2
AS LANGUAGE JAVA
NAME 'MyServer.getGoodIds() return java.lang.String';
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t
IS table_cursor Ref_Cursor_t;
good_ids VARCHAR2(100);
BEGIN
good_ids := get_good_ids();
OPEN table_cursor FOR 'SELECT id, name FROM TableA WHERE id IN ( ' | | good_ids | | ')';
RETURN table_cursor;
END;
END MyPackage;
public class MyServer{
public static String getGoodIds() throws SQLException {
return "1, 3, 6 ";
null

How to pass XMLType as parameters to Java stored procs ?

How to pass XMLType as parameters to Java stored procs ?
ORA-00932: inconsistent datatypes: expected an IN argument at position 1 that is an instance of an Oracle type convertible to an instance of a user defined Java class got an Oracle type that could not be converted to a java class
Java stored proc -->
CREATE or replace FUNCTION testJavaStoredProcMerge( entity xmltype,event xmltype ) RETURN VARCHAR2 AS LANGUAGE JAVA
NAME 'XDBMergeOp.merge(org.w3c.dom.Document,org.w3c.dom.Document) return java.lang.String';
PL/SQL -->
declare
theQuote VARCHAR2(50);
entity xmltype;
event xmltype;
begin
entity := xmltype('<Quote><Fields><Field1>f1</Field1></Fields></Quote>');
event := xmltype('<Quote><Fields><Field2>f2</Field2></Fields></Quote>');
theQuote := testJavaStoredProcMerge(entity,event);
dbms_output.put_line(theQuote);
end;
Java class -->
public class XDBMergeOp {
public static String merge(Document entity, Document event) throws Exception {
return ...
Thanks in advance.

I think you'll need to use XMLType and then extract the DOM inside java..
create or replace package SAXLOADER
as
procedure LOAD(P_PARAMETERS XMLTYPE, P_DATASOURCE BFILE);
end;
create or replace package body SAXLOADER
as
procedure LOAD(P_PARAMETERS XMLTYPE, P_DATASOURCE BFILE)
AS
LANGUAGE JAVA
NAME 'com.oracle.st.xmldb.pm.saxLoader.SaxProcessor.saxLoader ( oracle.xdb.XMLType, oracle.sql.BFILE)';
end;
public static void saxLoader(XMLType parameterSettings, BFILE dataSource)
throws Exception {
    Document parameters = parameterSettings.getDocument();
    SaxProcessor app = new SaxProcessor(parameters);
    app.processXMLFile(dataSource);
Edited by: mdrake on Apr 6, 2009 11:28 AM

How to pass a refcursor to a java stored proc

Hi all,
Please forgive me as I am new to Java and JDeveloper....
I want to pass a refcursor to a java stored proc. Does anyone know how to accomplish this?
Thanks,
dayneo

Hi,
As Avi has indicated, you can map ref cursor to java.sql.ResultSet
here are Call Specs and a code snippet from chapter 3 in my book.
procedure rcproc(rc OUT EmpCurTyp)
as language java
name 'refcur.refcurproc(java.sql.ResultSet[])';
function rcfunc return EmpCurTyp
as language java
name 'refcur.refcurfunc() returns java.sql.ResultSet';
* Function returning a REF CURSOR
public static ResultSet refcurfunc () throws SQLException
Connection conn = null;
conn = DriverManager.getConnection("jdbc:oracle:kprb:");
((OracleConnection)conn).setCreateStatementAsRefCursor(true);
Statement stmt = conn.createStatement();
((OracleStatement)stmt).setRowPrefetch(1);
ResultSet rset = stmt.executeQuery("select * from EMP order by empno");
// fetch one row
if (rset.next())
System.out.println("Ename = " + rset.getString(2));
return rset;
Kuassi

Can't execute OS-level command from java stored proc

I've written a couple simple java stored procs, the first of which writes an file and the second attempts a chown on it. I can write the file (which is written as the oracle user) just fine. I need to chown it, but can't. Here's the first proc:
public static String writefile()
String fileName = "/joetest/test.xml";
try {
File f = new File(fileName);
FileOutputStream out = new FileOutputStream(f);
PrintStream p = new PrintStream(out);
p.println("this is only a test");
p.close();
return "create file successful!!!";
} catch (Exception e) {
return "Exception occurred writing file:"+e;
Here's the proc I've been stuggling with:
public static String chown(String inString)
String[] command = {"/bin/sh", "-c", "/usr/bin/chown notjoe /joetest/test.xml"};
if (inString != null) {
command[2] = inString;
try {
Process p = Runtime.getRuntime().exec(command);
return "Ownership change success!! "+p;
} catch (Exception e) {
return "Ownership change failure?? err="+e;
The package is created with:
CREATE OR REPLACE PACKAGE JOE.THISISATEST AS
FUNCTION writefile
return VARCHAR2
AS
LANGUAGE java
NAME 'thisisatest.writefile() return java.lang.String';
FUNCTION chown(Param1 VARCHAR2)
return VARCHAR2
AS
LANGUAGE java
NAME 'thisisatest.chown(java.lang.String) return java.lang.String';
end;
And I've granted the following privileges:
begin
dbms_java.grant_permission('JOE', 'java.io.FilePermission', '/joetest/test.xml', 'read, write, execute, delete');
end;
begin
dbms_java.grant_permission('JOE', 'java.io.FilePermission', '/usr/bin/chown', 'execute');
end;
begin
dbms_java.grant_permission('JOE', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
end;
begin
dbms_java.grant_permission('JOE', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
end;
Here's the error that I'm getting:
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
Coincidentally, this is the same error that I used to get when I wrote the file without having been granted write privileges. Once I granted myself the proper 'write' permissions I could perform file IO just fine. Is there some runtime permission that I need to grant myself to run chown? I'm just guessing, as I can't find any permission like that in the java documentation. I have 'execute' permission on /usr/bin/chown and the oracle user can execute the command I'm attempting from the command line. ARRRRRGH.
I am at my wits end with this. I've tried what seems like a thousand different syntaxes for the OS command and ran it from many different directories. Anyone have any thoughts at all as to why this is happening? I'm just clutching at straws now...

Hmmmm. Granting 'execute' on '<<ALL FILES>>' to user JOE fixes this problem:
begin
dbms_java.grant_permission('JOE', 'java.io.FilePermission', '<<ALL FILES>>', 'execute');
end;
My security folks will not allow this when I port to production, but at least it is something.
Message was edited by:
user603023

Do Java Stored Proc support GUI

Calling Java stored procedure from database Trigger
I tried three things individually in Java Stored proc after
trigger is fired:
1. Do SQL statement (Insert into ... )
2. Execute a command to open notepad screen.
3. Open a new Frame and display it.
These three are simple testing, Item 1 works fine, however,
Item 2 and 3 never works.
IS JAVA STORED PROC CAN ONLY DO SQL TYPES OF WORK (INSERT, DELETE, UPDATE) ?
The errors I have for Items 2 and 3 are like:
1. When loading java: Java call terminated by uncaught Java exception:
oracle.aurora.awt.UnsupportedOperation:GUI not supported.
2. When triger is fired: class SCOTT.DBTrigger could not be resolved.
Thanks for help !!

As far as I know java stored procedures can't use any GUI classes. Only unvisible actions!
Regards

Calling an EJB deployed in OC4J from Java Stored Proc in Oracle

Hello!
Trying to make a call to an EJB deployed in OCJ4 from a oracle java stored proc. After loaded orion.jar and crimson.jar lib into SCOTT schema, I can't get the JNDI Context working because of this error:
============================================
javax.naming.NoInitialContextException: Cannot instantiate class:
com.evermind.server.ApplicationClientInitialContextFactory. Root exception is
java.lang.ClassNotFoundException:
com/evermind/server/ApplicationClientInitialContextFactory
at java.lang.Class.forName0(Class.java)
at java.lang.Class.forName(Class.java)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:45)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java)
at javax.naming.InitialContext.init(InitialContext.java)
at javax.naming.InitialContext.<init>(InitialContext.java)
===============================
I did load the java with "loadjava" with on time with the "resolve" option and time time no option and still no working.
Here is the EJB client code:
=======================================
import java.sql.*;
import java.util.*;
import javax.naming.*;
import com.evermind.server.ApplicationClientInitialContextFactory;
class EmpRemoteCall {
public static void main(String[] args) {
System.out.println(getEmpName());
public static String getEmpName() {
String ejbUrl = "java:comp/env/ejb/Emp";
String username = "admin";
String password = "admin";
Hashtable environment = new Hashtable();
environment.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.ApplicationClientInitialContextFactory");
environment.put(Context.PROVIDER_URL, "ormi://127.0.0.1/testemp");
environment.put(Context.SECURITY_PRINCIPAL, username);
environment.put(Context.SECURITY_CREDENTIALS, password);
//environment.put(Context.SECURITY_AUTHENTICATION, ServiceCtx.NON_SSL_LOGIN);
//environment.put(javax.naming.Context.URL_PKG_PREFIXES, "oracle.aurora.jndi");
com.kboum.sertir.essais.EmpHome homeInterface = null;
try {
Class.forName("com.evermind.server.ApplicationClientInitialContextFactory", true, ClassLoader.getSystemClassLoader());
System.out.println("Creating an initial context");
Context ic = new InitialContext(environment);
System.out.println("Looking for the EJB published as 'java:comp/env/ejb/Emp'");
homeInterface = (com.kboum.sertir.essais.EmpHome) ic.lookup(ejbUrl);
catch (CommunicationException e) {
System.out.println("Unable to connect: " + ejbUrl);
e.printStackTrace();
//System.exit(1);
catch (NamingException e) {
System.out.println("Exception occurred!");
System.out.println("Cause: This may be an unknown URL, or some" +
" classes required by the EJB are missing from your classpath.");
System.out.println("Suggestion: Check the components of the URL," +
" and make sure your project includes a library containing the" +
" EJB .jar files generated by the deployment utility.");
e.printStackTrace();
//System.exit(1);
catch (ClassNotFoundException e) {
System.out.println("Unable to connect: " + ejbUrl);
e.printStackTrace();
//System.exit(1);
try {
System.out.println("Creating a new EJB instance");
com.kboum.sertir.essais.Emp remoteInterface = homeInterface.findByPrimaryKey(Integer.valueOf("7369"));
System.out.println(remoteInterface.getENAME());
System.out.println(remoteInterface.getSAL());
remoteInterface.setSAL(2);
System.out.println(remoteInterface.getSAL());
return remoteInterface.getENAME();
catch (Exception e) {
System.out.println(e.getMessage());
e.printStackTrace();
return "error";
null

What I did to solve this problem was to
create a simple RMI remote object that
resides outside the database JVM and that
serves as a proxy EJB client for your java
stored procedure. The stored procedure can
invoke a method on the remote RMI object
which then looks up the EJBean's home
interface and invokes the relevant method on
the bean's remote interface, and relays any
return values back to the java stored
procedure.
Hope this helps,
Avi.
null

Problem with java stored procs.

Is there a restriction on accessing XML documents from Java stored procs?
I have a Java program to parse XML document and return a string. If I run this program as a stand alone, the program runs fine.
I loaded the oracle xmlparser.jar into ORACLE8i db sucessfully (used -resolve option). Then I loaded my .class file with -verbose and -resolve option and I did not get any erros. I created function which return string. When I ran the function, I did not get any value bacmk.
Can I use System.out.println in java programs in ORACLE8i. If I can where can I see the output when the program runs? I not waht other mehtods I can use to debug the program running in ORACLE8i JVM.
Thank You

Hello again,
I read the documentation of 9i and found some hints about different TCP/IP socket handling of 9i and a standard JVM.
There are some parts that give hints but I couldn't find a sample code to show how to handle the differences.
Could anyone tell me how to handle the differences or give some links to sample code?
Thanks
Detlev

System calls through Java stored Proc

Hi,
Aim: Execute host command from pl/sql thru java stored proc.
1. Created a java class to take system command that could be executed.
2. It runs fine when the class file is executed.
3. when the java file is loaded to database to access it as java stored proc, for any valid and invalid system commands it is giving out 'PL/SQL successfully completed.
Results were not seen.
4. Java source file.
import java.io.*;
import java.lang.*;
public class Util extends Object
public static int RunThis(String[] args) {
Runtime rt = Runtime.getRuntime();
int rc = -1;
String s = null;
try
Process p = rt.exec(args);
BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));
// read the output from the command
System.out.println("Here is the standard output of the command:\n");
while ((s = stdInput.readLine()) != null) {
System.out.println(s);
// read any errors from the attempted command
System.out.println("Here is the standard error of the command (if any):\n");
while ((s = stdError.readLine()) != null) {
System.out.println(s);
System.exit(0);
catch (Exception e){
e.printStackTrace();
rc = -1;
finally {
return rc;
public static void main(String[] args){
Util.RunThis(args);
public static String exec(String args){
Util.RunThis(args);
return "Srini it is successful";
5. When ran from host prompt (unix),
executed successfully,
$ /opt/java1.3.1/bin/java Util /usr/bin/ls -l
Here is the standard output of the command:
total 30862
-rwxrwxrwx 1 xyz develope 1348218 Jan 2 17:47 02Jan03-2.zip
-rw-r----- 1 xyz develope 21864 Jul 9 2002 109-60_2_modified7.sql
-rw-r----- 1 xyz develope 44934 Jul 9 2002 109-60_2_modified8.sql
Here is the standard error of the command (if any):
xyz@xxxxx:abcd:/home/xyz
$
6. loadjava,
$ loadjava -user username/password Util.java
7. Create proc,
SQL> create procedure echo_input(s1 varchar2) as language java name 'Util.main(java.lang.String[])';
2 /
Procedure created.
8. Execute proc.
SQL> exec echo_input('/usr/bin/ls -l');
PL/SQL procedure successfully completed.
SQL> exec echo_input('/home/o_report/reports/rcli_ASCT &');
PL/SQL procedure successfully completed.
SQL> set serverout on
SQL> exec echo_input('/home/o_report/reports/rcli_ASCT');
PL/SQL procedure successfully completed.
SQL> exec echo_input('ddsafafasf');
PL/SQL procedure successfully completed.
TIA,
Srini.

Hi Srini,
This is just a suggestion, but try entering the following commands (in your SQL*Plus session) before executing your stored procedure:
set serveroutput on size 1000000
exec dbms_java.set_output(1000000)Hope this helps.
Good Luck,
Avi.

ORA-03113 error when running the Java stored proc demos

Hi there,
Has anyone else run into this issue. When attempting to transfer an object type from Java to Oracle - through a Java stored proc - the session crashes with:
ORA-03113: end-of-file on communication channelLooking in the trace file generated the error message looks something like:
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [0x8fe04468] [SIGTRAP] [unknown code] [0x8FE59034] [] []
Current SQL statement for this session:
select pointruntime.jdistance(point(1, 2), point(2, 3)) from dual
----- Call Stack Trace -----
calling              call     entry                argument values in hex
location             type     point                (? means dubious value)
ksedmp+764           call     ksedst               0 ? 2C4F4A ? 2C ? 98968000 ?
                                                   DB02C ? 27A50000 ?
ssexhd+956           call     ksedmp               3 ? 0 ? 8FE5E790 ? 5905870 ?
                                                   8FE0434C ? 40895E4 ?
0x9012c860           call     ssexhd               5 ? BFFEEF70 ? BFFEEFB0 ? 0 ?
                                                   0 ? 0 ?As you can see from the trace snippet above, I was attempting to run one of the Oracle Java stored procedure demos. Has anyone successfully run those demos? Specifically the ones where complex types (table objects or the Point object) are passed back to Oracle from the JVM.
I would appreciate some help with this. The code works fine in a Windows or Solaris environment but barfs on Apple. Truly annoying....
Anyone?
Thanks in advance,
Alex

Yes,
Apologies for not stating that information, Steve. Was a bit naughty of me! I guess the reason I didn't was because I just wanted to hear if anyone else running Oracle on Mac received such errors when executing the Java stored proc demos (specifically, the execution of PointRuntime.jDistance). Nevertheless, here's the relevant info from the trace file:
Dump file /Users/oracle/admin/sandbox/udump/sandbox_ora_1861.trc
Oracle Database 10g Enterprise Edition Release 10.1.0.3.0 - Production
With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options
ORACLE_HOME = /Users/oracle/product/10.1.0/db
System name:     Darwin
Node name:     maczilla.local
Release:     8.3.0
Version:     Darwin Kernel Version 8.3.0: Mon Oct 3 20:04:04 PDT 2005; root:xnu-792.6.22.obj~2/RELEASE_PPC
Machine:     Power Macintosh
Instance name: sandbox
Redo thread mounted by this instance: 1
Oracle process number: 10
Unix process pid: 1861, image: [email protected] for the Java version, according to the readme file in the javavm directory, I am running 1.4.1:
1.5 Java Compatibility
This release has been thoroughly tested with Sun's Java Compatibility
Kit for the JDK 1.4.1. Oracle is committed to OracleJVM keeping pace
with Java and other Internet standards.

XML Parsing in Java Stored Proc--Oracle XML Support Installation?

I am working with a third party product that is having difficulty running a java stored proc that is parsing a supplied XML file. The proc basically looks like:
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
InputStream is = getXMLAsInputStream(xml);
try {
DocumentBuilderFactory factory =
DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse( is );
... parse the document ....
catch (FactoryConfigurationError e) {
// unable to get a document builder factory
We are running on 9.2.0.6, HP-UX 64-bit. At first, when we would attempt to run the proc, a database hang would occur; now after attempting to install using loadjava jars for xerces2.6: ORA-29532: Java call terminated by uncaught Java exception:
javax.xml.parsers.FactoryConfigurationError: Provider
org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not found)
The vendor says that the errors we are getting when running are not due to any dependency on xerces or jre1.4, and that we need to "install Oracle XML support", but I'm not certain what this means (I cannot find any documentation on what to install). I believe that there are jars that need to be loaded into the database to support the XML parsing, as jre1.3 does not include built-in XML support, and Oracle 9.2.0.6 uses jre1.3.
So...does anyone have any thoughts as to how to resolve the missing references? Is there a way to "install Oracle XML support", or is it to install the necessary jars?
Thanks,
Candi

Candi,
The following resources should be of help:
Oracle9i Database Release 2 (9.2) Documentation Library
In particular, check out the following:
Java Developer's Guide
Java Stored Procedures Developer's Guide
XML API Reference - XDK and Oracle XML DB
XML Database Developer's Guide - Oracle XML DB
XML Developer's Kits Guide - XDK
If that doesn't help, then try the following:
OracleJVM and Java Stored Procedures
XML Technology Center
Good Luck,
Avi.

Parse XML in a java stored proc

I am trying to parse an xml document in a java stored procedure. Just following my nose, I have developed a stored proc that works fine in development (outside the database using JRE 1.4.1) using the Xerces 2.5 parser. But, after having transferred the xerces xercesImpl.jar, xmlapis.jar, and my implementation class into oracle using loadjava when I call my stored proc the code throws an exception trying to build the document with an error like:
NoClassDef exception org.apache.xerces.jaxp.DocumentFactoryBuilderImpl
My Code looks like this:
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
InputStream is = getXMLAsInputStream(xml);
try {
DocumentBuilderFactory factory =
DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse( is );
... parse the document ....
catch (FactoryConfigurationError e) {
// unable to get a document builder factory
The exception caught is a FactoryConfigurtionError.
I'm not particularly attached to xerces, I'm really just looking for a way to parse XML inside my java stored proc, so any help to solve my problem, or an alternative suggestion will be greatly appreciated.
thanks
Dale

I looked again and sure enough the xerces implementation classes were missing. I had run a .cmd file containing these two lines, but it looks like only the first one ran...
loadjava -u ncc/xyz@usd -v -r M:\Database\JavaGeocode\Xerces2_5_0\xml-apis.jar
loadjava -u ncc/xyz@usd -v -r M:\Database\JavaGeocode\Xerces2_5_0\xercesImpl.jar
Now I've got everything working fine with Xerces!
Dale

Java stored proc deploy problem

I get follow error,when I deploy Java stored proc with JDeveloper3.2.
Errors:
*** Errors occurred while loading the archive into 8i JVM ***
How can i do?
Thanks a lot!!

The problem is with the OUT parameters. If you read the documentation you will see that OUT parameters
need to be declared as one element arrays. Hence this should compile:
CREATE OR REPLACE PROCEDURE TEST ( id IN NUMBER,
i IN NUMBER,
j IN VARCHAR2,
ret1 OUT NUMBER,
ret2 OUT VARCHAR2,
k IN NUMBER) AS
LANGUAGE JAVA NAME 'com.fn.oracle.proc.trading.TestProcedure.testIt(int, double, java.lang.String, int[], java.lang.String[], int)';Cheers, APC

Java Stored Proc Return Types

Similar Messages

Maybe you are looking for