Java Stored Procedures make OS calls

Can java stored procedures make calls to the operating system?

If you grant the right privileges to the user executing them..
(See the java developer guide for the details).
Note that calls to the OS through System.getRuntime().execxxx will run as the oracle user on the server side, that's why you have to be able to grant the right privileges before doing it.

Similar Messages

Passing Tables back from Java Stored Procedures

Thomas Kyte has written (in reference to
trying to pass an array back from a stored
function call):
You can do one of two things (and both require the use of
objects). You cannot use PLSQL table types as JDBC cannot bind to
this type -- we must use OBJECT Types.
[snip]
Another way is to use a result set and "select * from
plsql_function". It could look like this:
ops$tkyte@8i> create or replace type myTableType as table of
varchar2 (64);
2 /
Type created.
ops$tkyte@8i>
ops$tkyte@8i>
ops$tkyte@8i> create or replace
2 function demo_proc2( p_rows_to_make_up in number )
3 return myTableType
4 as
5 l_data myTableType := myTableType();
6 begin
7 for i in 1 .. p_rows_to_make_up
8 loop
9 l_data.extend;
10 l_data(i) := 'Made up row ' | | i;
11 end loop;
12 return l_data;
13 end;
14 /
Function created.
ops$tkyte@8i>
ops$tkyte@8i> select *
2 from the ( select cast( demo_proc2(5) as mytableType )
3 from dual );
COLUMN_VALUE
Made up row 1
Made up row 2
Made up row 3
Made up row 4 [Image]
Made up row 5
So, your JDBC program would just run the query to get the data.
If the function "demo_proc2" cannot be called from SQL for
whatever reason (eg: it calls an impure function in another piece
of code or it itself tries to modify the database via an insert
or whatever), you'll just make a package like:
ops$tkyte@8i> create or replace package my_pkg
2 as
3
4 procedure Make_up_the_data( p_rows_to_make_up in
number ); 5 function Get_The_Data return myTableType;
6 end;
7 /
Package created.
ops$tkyte@8i>
ops$tkyte@8i> create or replace package body my_pkg
2 as
3
4 g_data myTableType;
5
6 procedure Make_up_the_data( p_rows_to_make_up in number )
7 as
8 begin
9 g_data := myTableType();
10 for i in 1 .. p_rows_to_make_up
11 loop
12 g_data.extend;
13 g_data(i) := 'Made up row ' | | i;
14 end loop;
15 end;
16
17
18 function get_the_data return myTableType
19 is
20 begin
21 return g_data;
22 end;
23
24 end;
25 /
Package body created.
ops$tkyte@8i>
ops$tkyte@8i> exec my_pkg.make_up_the_data( 3 );
PL/SQL procedure successfully completed.
ops$tkyte@8i>
ops$tkyte@8i> select *
2 from the ( select cast( my_pkg.get_the_data as mytableType
) 3 from dual );
COLUMN_VALUE
Made up row 1
Made up row 2
Made up row 3
And you'll call the procedure followed by a query to get the
data...
I have tried this, and it works perfectly.
My question, is what does the wrapper look
like if the stored function is written
in java instead of PL/SQL? My experiments
with putting the function in java have been
dismal failures. (I supposed I should also
ask how the java stored procedure might
look also, as I suppose that could be where
I have been having a problem)
null

Thanks for the response Avi, but I think I need to clarify my question. The articles referenced in your link tended to describe using PL/SQL ref cursors in Java stored procedures and also the desire to pass ref cursors from Java to PL/SQL programs. Unfortunately, what I am looking to do is the opposite.
We currently have several Java stored procedures that are accessed via select statements that have become a performance bottleneck in our system. Originally the business requirements were such that only a small number of rows were ever selected and passed into the Java stored procedures. Well, business requirements have changed and now thousands and potentially tens of thousands of rows can be passed in. We benchmarked Java stored procedures vs. PL/SQL stored procedures being accessed via a select statement and PL/SQL had far better performance and scaleable. So, our thought is by decouple the persistence logic into PL/SQL and keeping the business logic in Java stored procedures we can increase performance without having to do a major rewrite of the existing code. This leads to the current problem.
What we currently do is select into a Java stored procedure which has many database access calls. What we would like to do is select against a PL/SQL stored procedure to aggregate the data and then pass that data via a ref cursor (or whatever structure is acceptable) to a Java stored procedure. This would save us a significant amount of work since the current Java stored procedures would simple need to be changed to not make database calls since the data would be handed to them.
Is there a way to send a ref cursor from PL/SQL as an input parameter to a Java stored procedure? My call would potentially look like this:
SELECT java_stored_proc(pl/sql_stored_proc(col_id))
FROM table_of_5000_rows;
Sorry for the lengthy post.

Problem with static vars of SQLJ java stored procedure

Hi,
When I'm calling a PL/SQL stored procedure that call a Java stored procedure from another Java stored procedure, the second call to the Java stored procedure does not see the first Java stored procedure static variables.
Why is that?
Can I configure it to work otherwise so all the Java stored procedure calls in this session will share the same static variables?
Thanks

Hi:
Remove your ; at the end of the sql string.
String sql = "SELECT VERSION_OFA FROM XX_PARAMETERS";
I don't know why JDev accept the ; at the end of string in a prepare statement but AFAIK its not legal.
If your are using the SQL pane of JDev may be the tool strip the ; for you.
Best regards, Marcelo.

Transactional file output from a Java Stored Procedure invoked by trigger.

I need to write information to a file from a Java Stored
Procedure which is called from an insert trigger. This works OK
except for the condition when a rollback is performed - the file
is updated anyway.
I need the Java Stored Procedure file output to be part of the
transaction - performed on commit and skipped on rollback. Is
there any way the Java Stored Procedure can be aware of the
state of the transaction?

i am Still facing the following problem:
if i pass a parameter like :
rm -f /test/menu.ksh
then the required output is that the menu.ksh file gets deleted.
but when i pass this command:
./test/menu.ksh
It is supposed to execute the specified script but it does not.
I have tried multiple things like giving chmod 777 rights to the following file and changing the command to /test/menu.ksh but nothing happens
Can you kindly tell me what can the problem be. Is there any execution rights issue: i am executing these scripts from pl sql developer.
You can find both the procedure and java method which is being called below
==========================================================================================
create or replace procedure TEST_DISPLAY(filename in varchar2, result out varchar2, error out varchar2) is
command varchar2(100);
vRetChar varchar2(100);
begin
command := filename ;
prc_host(command, vRetChar);
result := vRetChar;
dbms_output.put_line(result);
Exception
when No_Data_Found Then
error := 'Command is not Found';
dbms_output.put_line('Failure');
return;
end TEST_DISPLAY;
======================================================================
create or replace and compile java source named host as
import java.io.*;
import java.lang.Runtime;
import java.lang.Process;
import java.io.IOException;
import java.lang.InterruptedException;
public class Host {
public static void executeCommand(String command,String[] outString) {
String RetVal;
try {
String[] finalCommand;
final Process pr = Runtime.getRuntime().exec(command);
// Capture output from STDERR...
}

Out of memory error when calling a java stored procedure multiple times

Trying to run a PL/SQL loop calling a java stored procedure, I get the following error:
"ORA-04030: out of process memory when trying to allocate 262188 byte callheap,ioc_allocate free)"
(with some other error lines).
The stored procedure does two major things:
1) Open a socket to communicate with a server, of which it queries some data.
2) Use JDBC (with the default DB connection it has, as a stored procedure) to write the results to a table.
All socket connections, statements, etc. are properly closed and all memory should be garbage collected between each call.
Can anyone offer an explanation or additional checks to make? I'm quite sure the code isn't causing the problem, since I've tried running it as a stand alone application (outside of Oracle) and didn't have any problems.
Thanks.

Hi,
Verify that the database parameters are set correctly.
EA

Java Stored Procedure calling HTTP Servlet in Weblogic

I am currently working on an e-commerce application for a brick-n-mortar electronics store. The store currently has an Oracle database that contains all of the products the store sells. The e-commerce site will have a separate Oracle database. Both database are Oracle 9i release 2 databases. The e-commerce site will be using BEA's Weblogic as its application server. I need to move data from the store db into the e-commerce db. The actual moving of the data is not the issue. The issue comes from needing to call several methods on a Stateless Session EJB, loaded on the Weblogic server, to perform backend processing. I wanted to make a JNDI call from a Java Stored Procedure but with Release 2, this option is no longer supported. The release notes (http://otn.oracle.com/tech/java/htdocs/9idb2_java.html) indicated that the JVM now supports calling out to Servlets using HTTP Client from a Java Stored Procedure.
Has anyone done this? Is there any sample code available?
Thanks for any help.

I am currently working on an e-commerce application for a brick-n-mortar electronics store. The store currently has an Oracle database that contains all of the products the store sells. The e-commerce site will have a separate Oracle database. Both database are Oracle 9i release 2 databases. The e-commerce site will be using BEA's Weblogic as its application server. I need to move data from the store db into the e-commerce db. The actual moving of the data is not the issue. The issue comes from needing to call several methods on a Stateless Session EJB, loaded on the Weblogic server, to perform backend processing. I wanted to make a JNDI call from a Java Stored Procedure but with Release 2, this option is no longer supported. The release notes (http://otn.oracle.com/tech/java/htdocs/9idb2_java.html) indicated that the JVM now supports calling out to Servlets using HTTP Client from a Java Stored Procedure.
Has anyone done this? Is there any sample code available?
Thanks for any help. Hi,
sorry we have not yet formally documented this but here is a code snippet
Kuassi
/* HttpCallout - simple test to callout to static pages from Java Stored
Procedures */
import java.io.IOException;
import java.io.InputStream;
import HTTPClient.HTTPConnection;
import HTTPClient.HTTPResponse;
import HTTPClient.AuthorizationInfo;
public class HttpCallout {
public static void main(String[] argv) throws InterruptedException {
HttpCallout t = new HttpCallout(argv);
t.run();
private String[] argv ;
HttpCallout(String[] argv) {
this.argv = argv;
void initSSL() {
public void run() {
try {
if ( argv.length == 0 ) {
System.out.println("HttpCallout " +
"protocol " +
"host " +
"port " +
"page ");
return;
// process arguments
int argc = 0;
String protocol = argv[argc++];
String host = argv[argc++];
int port = Integer.parseInt(argv[argc++]);
String page = argv[argc++];
// Debugging - don't set for now
// System.setProperty("HTTPClient.log.mask", "3");
// noop
initSSL();
// Grab HTTPConnection
HTTPConnection con = new HTTPConnection(protocol, host, port);
con.setTimeout(20000);
con.setAllowUserInteraction(false);
// Grab Response
HTTPResponse rsp = con.Get(page);
byte[] data = rsp.getData();
if ( data == null ) {
System.out.println("no data");
} else {
System.out.println("data length " + data.length);
System.out.println(new String(data));
catch ( Throwable ex ) {
ex.printStackTrace();

Calling XML API's from Java Stored Procedures in DB

Hi,
I am have and Oracle 10gR2 db installed and XML Publisher Enterprise Server 5.6.2.
I have created the following Java Class and used loadjava to make it a Java Stored Procedure:
<code>
import java.io.IOException;
import java.lang.Object;
import oracle.apps.xdo.XDOException;
import oracle.apps.xdo.template.FOProcessor;
import oracle.apps.xdo.template.RTFProcessor;
public class callingXMLP{
public static String rtfToXsl(String rtfFile, String xslFile)
try {
RTFProcessor rtfProcessor = new RTFProcessor(rtfFile); //Input RTF
rtfProcessor.setOutput(xslFile);
rtfProcessor.process();
} catch (IOException IOE) {
return" Error "+IOE.getMessage();}
catch(XDOException XDE ){
return" Error "+XDE.getMessage();
return "Success";
public static String mergeXmlXsl(String xmlFile, String xslFile, String outputFile)
FOProcessor processor = new FOProcessor();
processor.setData(xmlFile); //Input XML File
processor.setTemplate(xslFile); //Input XSL File
processor.setOutput(outputFile); //Ouput File
processor.setOutputFormat(FOProcessor.FORMAT_PDF);
//start processing
try {
processor.generate();
catch (XDOException e){
e.printStackTrace();
//System.exit(1);
return "Error - "+e.getMessage();
//System.exit(0);
return "Success";
</code>
I then wrap this using the following function spec in pl/sql:
create or replace function callXMLP(input1 VARCHAR2, output1 VARCHAR2) RETURN VARCHAR2
as language java name 'callingXMLP.rtfToXsl(java.lang.String,java.lang.String) return java.lang.String';
and
create or replace function mergeXMLXSL(xml VARCHAR2, xsl VARCHAR2, output VARCHAR2) RETURN VARCHAR2
as language java name 'callingXMLP.mergeXmlXsl(java.lang.String,java.lang.String,java.lang.String) return java.lang.String';
Calling the callXMLP function works fine, and produces an XSL file from the input RTF file as expected.
When I run the mergeXMLXSL function, it says that the function has completed successfully, but it seems to be throwing an XDOException error as it is returning "Error - null" message from the Java.
A PDF document is being created, but it does not have any content. I have also modified the Java to create an RTF instead, but still the same thing happens.
Is there anything that I need to check, or something that I am missing when trying to create the final PDF document?
Please help, I am completely stuck with this now.
Many Thanks,
Cj

Hello Chris,
I have been able to create a PDF from the database. I loaded the following jar files and removed any java class that could not compile.
activation.jar, axis-ant.jar, axis.jar, axis-schema.jar, bicmn.jar, bipres.jar, collections.jar,
commons-beanutils.jar, commons-collections-3.1.jar, commons-collections.jar, commons-dbcp-1.1.jar commons-digester.jar, commons-discovery.jar, commons-el.jar, commons-fileupload.jar, commons-logging-api.jar commons-logging.jar, commons-pool-1.1.jar, http_client.jar, i18nAPI_v3.jar, javamail.jar, jaxrpc.jar,
jewt4.jar, jsp-el-api.jar, log4j-1.2.8.jar, logkit-1.2.jar, ojpse.jar, oracle-el.jar, oraclepki.jar,
orai18n.jar, quartz-1.5.1.jar, quartz-oracle-1.5.1.jar, regexp.jar, saaj.jar, service-gateway.jar, share.jar, uix2.jar, uix2tags.jar, versioninfo.jar, wsdl4j.jar, xdocore.jar, xdoparser.jar, xdo-server-delivery-1.0-SNAPSHOT.jar, xdo-server-kernel-0.1.jar, xdo-server-kernel-impl-0.1.jar, xdo-server-scheduling-1.0-SNAPSHOT.jar, xercesImpl.jar, xmlparserv2-904.jar, xmlpserver.jar, xsu12.jar
I needed to copy the XML Publisher fonts to the database server and ran the following java grants, note my $ORACLE_HOME is /opt/app/oracle/product/10.1.0/
dbms_java.grant_permission('XMLP', 'java.util.PropertyPermission', '*', 'read,write');
dbms_java.grant_permission('XMLP', 'java.net.SocketPermission', '*', 'connect, resolve');
dbms_java.grant_permission('XMLP', 'java.io.FilePermission', '/tmp/*', 'read, write, delete');
dbms_java.grant_permission('XMLP', 'java.io.FilePermission', '/opt/app/oracle/product/10.1.0/javavm/lib/*', 'read');
dbms_java.grant_permission('XMLP', 'java.io.FilePermission', '/opt/app/oracle/product/10.1.0/javavm/lib/fonts/*', 'read');
dbms_java.grant_permission('XMLP', 'java.lang.RuntimePermission', 'setFactory', '');
George

Calling a servlet from a Java Stored Procedure

Hey,
I'm trying to call a servlet from a Java Stored Procedure and I get an error.
When I try to call the JSP-class from a main-method, everything works perfectly.
Java Stored Procedure:
public static void callServlet() {
try {
String servletURL = "http://127.0.0.1:7001/servletname";
URL url = new URL(servletURL);
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
conn.setDoOutput(true);
conn.setRequestProperty("Pragma", "no-cache");
conn.connect();
ObjectInputStream ois = new ObjectInputStream(conn.getInputStream());
Integer client = (Integer)ois.readObject();
ois.close();
System.out.println(client);
conn.disconnect();
} catch (Exception e) {
e.printStackTrace();
Servlet:
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Integer id = new Integer(10);
OutputStream os = response.getOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(os);
oos.writeObject(id);
oos.flush();
oos.close();
response.setStatus(0);
Grant:
call dbms_java.grant_permission( 'JAVA_USER', 'SYS:java.net.SocketPermission','localhost', 'resolve');
call dbms_java.grant_permission( 'JAVA_USER','SYS:java.net.SocketPermission', '127.0.0.1:7001', 'connect,resolve');
Package:
CREATE OR REPLACE PACKAGE pck_jsp AS
PROCEDURE callServlet();
END pck_jsp;
CREATE OR REPLACE PACKAGE BODY pck_jsp AS
PROCEDURE callServlet()
AS LANGUAGE JAVA
NAME 'JSP.callServlet()';
END pck_jsp;
Architecture:
AS: BEA WebLogic 8.1.2
DB: Oracle 9i DB 2.0.4
Exception:
java.io.StreamCorruptedException: InputStream does not contain a serialized object
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java)
The Servlet and the class work together perfectly, only when I make the call from
within the database things go wrong.
Can anybody help me.
Thank in advance,
Bart Laeremans
... Desperately seeking knowledge ...

Look at HttpCallout.java in the following code sample
http://www.oracle.com/technology/sample_code/tech/java/jsp/samples/jwcache/Readme.html
Kuassi

How to call java stored procedure using RMI?

Is it possible to make a call to java stored procedure using RMI. ?
How can I run the RMI registry on the Oracle Server ?

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Thomas Grounds ([email protected]):
Is it possible to make a call to java stored procedure using RMI. ?
In principle it is possible. See the Java-Doc.s of Oracle 8.1.6.
I have successful granted the java.net.SocketPermissions in my USER_JAVA_POLICY view (see Doc.) Now I was able to use the RMI-Sockets, but following
failure try to connect to RMI-Object via RMIregistry an Oracle Error occurs
ORA-03113: end-of-file on communication channel
and after that my Oracle Connection is closed.
How can I run the RMI registry on the Oracle Server ?<HR></BLOCKQUOTE>
I think you do not need the RMI registry on Oracle Server. It should be possible to start the RMI registry wherever you want in your network and access it via the right registry string.
Ciao
Margit
null

Calling the Java Method in PL/SQL Java Stored procedure errors out

Hi,
I could not find a suitable thread to post my PL/SQL question so iam posting it here.........
I have written a java class by name XYZ which has a method ABC for which there are 9 arguements being passed and its a VOID method.
This java class has been loaded into ORACLE using DBMS_JAVA.LOADJAVA pkg, Now this class is being called in the oracle as a JAVA Stored procedure...... When ever im trying to call the procedure it throws the following error
ORA-29531: no method
*Cause:    An attempt was made to execute a non-existent method in a
Java class.
*Action:   Adjust the call or create the specified method.
The code snippet as follows
JAVA CODE:
Class xyz
public static void Abc (String hostName,
int port,
String serviceURL,
String soapAction,
int timeOut,
String wsUser,
String wsPasWd,
String keyStore,
String keyStorePasWd)
//method implementation
JAVA STORED PROCEDURE:
create OR REPLACE procedure ABC_JAVA_SP_CALL
(p_hostname in varchar2, p_port in number, p_serviceurl in varchar2, p_soapaction in varchar2, p_timeout in number, p_wsuser in varchar2, p_wspasswd in varchar2, p_ks_path in varchar2, p_ks_passwd in varchar2)
as
language java
name 'xyz.Abc(java.lang.String, int, java.lang.String, java.lang.String, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String)';
When i try to call
declare
p_hostname varchar2(100);
p_port number;
p_serviceurl varchar2(100);
p_soapaction varchar2(100);
p_timeout number;
p_wsuser varchar2(100);
p_wspasswd varchar2(100);
p_ks_path varchar2(100);
p_ks_passwd varchar2(100);
begin
//SP which returns the values for the required parameters.
comppkg.getvcsinfo(
p_hostname,
p_port ,
p_serviceurl,
p_soapaction,
p_timeout,
p_wsuser,
p_wspasswd,
p_ks_path,
p_ks_passwd
Layer7_icengc_ws_tes(p_hostname,
p_port ,
p_serviceurl,
p_soapaction,
p_timeout,
p_wsuser,
p_wspasswd,
p_ks_path,
p_ks_passwd);
end;
This thing ends up with
29531. 00000 - "no method %s in class %s"
*Cause:    An attempt was made to execute a non-existent method in a
Java class.
*Action:   Adjust the call or create the specified method.
Im not understanding what wrong am i doing
pls help
Edited by: madhusudan on Feb 12, 2013 8:07 PM

Hello,
there is the forum {forum:id=65} for questions about using Java within Oracle.
Regards
Marcus
Edited by: Marwim on 13.02.2013 07:56
I could not find a suitable thread to post my PL/SQL question so iam posting it here.........You got the hint to the correct forum alread in another thread {message:id=10837976}
And if you think this is not related to Java but PL/SQL, then you should ask in {forum:id=75}

SQLException: Cursor is closed while calling a java stored procedure

Hi,
I got the following error when trying to read from a cursor of a java stored procedure:
java.sql.SQLException: Cursor is closed
The java procedure is stored in the database and wrapped by a sql call. Then another java class executes the sql call.
The stored procedure looks like this:
import java.io.Reader; import java.security.MessageDigest; import java.sql.*; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import oracle.jdbc.OracleCallableStatement; import oracle.jdbc.OracleConnection; public class test { static Connection conn = null; static String username = null; static String password = null; static Integer userid = null; public static void main(String args[]) throws Exception { username = "keller"; password = "945435"; login(username, password); } public static String login(String in_username, String in_password) { String access = null; String password = null; try { DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); // Non OracleVM System.out.print("Verbindung wird initialisiert... "); conn = //DriverManager.getConnection("jdbc:default:connection:"); //conn.setAutoCommit(false); DriverManager.getConnection("jdbc:oracle:thin:@[...]:1521:[...]","[...]","[...]"); System.out.println("OK"); System.out.print("Logindaten werden ueberprueft... "); String sql = "SELECT matrikelnr, password FROM student WHERE name = ?"; PreparedStatement pstmt = conn.prepareStatement(sql); pstmt.setString(1, in_username); ResultSet rset = pstmt.executeQuery(); while (rset.next()) { userid = rset.getInt(1); password = rset.getString(2); } access = "student"; pstmt = conn.prepareStatement(sql); if (password == null) { sql = "SELECT dozentnr, password FROM dozent WHERE name = ?"; pstmt = conn.prepareStatement(sql); pstmt.setString(1, in_username); rset = pstmt.executeQuery(); while (rset.next()) { userid = rset.getInt(1); password = rset.getString(2); } pstmt = conn.prepareStatement(sql); if (password == null) { throw new SQLException("User nicht gefunden!"); } access = "dozent"; } //rset.close(); // Resultset schließen //pstmt.close(); // Statement schließen // MD5 Hash vergleichen MessageDigest md5 = MessageDigest.getInstance("MD5"); md5.reset(); md5.update(in_password.getBytes()); byte[] result = md5.digest(); StringBuffer hexString = new StringBuffer(); for (int i=0; i<result.length; i++) { if(result[i] <= 15 && result[i] >= 0){ hexString.append("0"); } hexString.append(Integer.toHexString(0xFF & result));
if (password != null) {
if (password.equals(hexString.toString())) {
System.out.println("OK");
} else {
throw new Exception("Falsches Passwort!");
catch(SQLException e) {
System.err.println("SQL Fehler!");
System.err.println(e.getMessage());
catch(Exception e) {
System.err.println("Fehler!");
System.err.println(e.getMessage());
return access;
public static void getLeistungsschein(int matrikelnr, ResultSet[] rout)
ResultSet rs = null;
try
System.out.print("Berechtigung ueberpruefen... ");
if (userid != matrikelnr)
throw new Exception("Zugriff verweigert, keine Berechtigung!");
int mnr = matrikelnr;
((OracleConnection)conn).setCreateStatementAsRefCursor(true);
PreparedStatement ps = conn.prepareStatement("select bezeichnung, note from klausur inner join leistungsschein on klausur.KLAUSURNR=leistungsschein.KLAUSURNR where matrikelnr= ?");
ps.setInt(1, mnr);
rs = (ResultSet)ps.executeQuery();
rout[0]= rs;
catch(SQLException e) {
System.err.println("Fehler!");
System.err.println(e.getMessage());
catch(Exception e) {
System.err.println("Fehler!");
System.err.println(e.getMessage());
The sql call:
create or replace
procedure pgetleistungsschein(matrikelnr in number, cur OUT refcurpkg.refcur_t) is
language java name 'Klausurverwaltung.getLeistungsschein(int, java.sql.ResultSet[])';
And finally the wrapper is called by another java programm, see this:
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleResultSet;
import oracle.jdbc.OracleTypes;
public class cursortest {
public static void main(String[] args) {
try{
//-- Oracle Treiber laden
Class.forName( "oracle.jdbc.driver.OracleDriver" );
Connection c = DriverManager.getConnection( "jdbc:oracle:thin:@sligo.fh-trier.de:1521:ubuntu", "dbsem_java","javajava");
CallableStatement stmt = null;
ResultSet rs1 = null;
int matrnr = 945098;
// Call PLSQL Stored Procedure
stmt = (CallableStatement)c.prepareCall("{ call ? := getklausuren(?) }");
stmt.setInt(2, matrnr);
// 2nd parameter is OUT paremeter
stmt.registerOutParameter(1, OracleTypes.CURSOR);
// Execute the callable statement
stmt.execute();
//Cursor in ResultSet einlesen
rs1 = ((OracleCallableStatement)stmt).getCursor(1);
ResultSetMetaData rsmd = rs1.getMetaData();
int anzSpalten = rsmd.getColumnCount();
List<String[]> zeilen = new ArrayList<String[]>();
while(rs1.next())
String[] zeile = new String[anzSpalten];
for (int i=1; i<=anzSpalten; i++)
zeile[i-1]=rs1.getString(i);
zeilen.add(zeile);
String[][] array_angeb_klaus = (String[][])zeilen.toArray(new String[zeilen.size()][anzSpalten]);
//**** ENDE
rs1.close();
stmt.close();
//c.close();
catch (SQLException e){
System.out.println(e);
catch (ClassNotFoundException f){
System.out.println(f);

On top of what jschell says, this just looks wrong in terms of how Oracle's internal Java works as well.
[Have a look here |http://www.oracle.com/technology/sample_code/tech/java/codesnippet/jdbc/refcur/index.html] (unless things have changed significantly over the past few years for Oracle Java).
Is the db you are querying a different one to the one this Java is stored in?

21700 while calling java stored procedure in 9i

I create a java stored procedure that takes a varray of a rowtype. When I call that procedure, I get an ora-21700. If I remove the varray from the parameter list, I can call the procedure okay. My goal is to create a generic java procedure that can take a rowtype from any table and create XML. Once I get the oracle.sql.ARRAY into my code, I am okay. I just can't seem to pass it in. I have pasted my code below:
Java:
import oracle.sql.*;
public class test {
public static String sayHello() {
return("Hello, World!");
public static void genXML(oracle.sql.ARRAY a, oracle.sql.CLOB c) throws Exce
ption {
c.putString(1,"<test>This is a test!</test>");
PL/SQL:
create or replace package mike is
type dummy_record is varray (1) of dummy%rowtype;
PROCEDURE GENERATE_XML(i dummy_record, c CLOB);
FUNCTION SAYHELLO RETURN varchar2;
end mike;
show errors
create or replace package body mike is
PROCEDURE GENERATE_XML(i dummy_record,c CLOB)
AS LANGUAGE JAVA
NAME 'test.genXML(oracle.sql.ARRAY,oracle.sql.CLOB)';
FUNCTION SAYHELLO RETURN varchar2
AS LANGUAGE JAVA
NAME 'test.sayHello() return java.lang.String';
end mike;
show errors
DDL:
SQL> describe dummy
Name Null? Type
USERNAME VARCHAR2(20)
ID NUMBER
Test Script:
declare
m Mike.dummy_record := Mike.DUMMY_RECORD();
c CLOB;
begin
m.extend;
select xml into c from t_clob;
for rec in (select * from dummy)
LOOP
m(1) :=rec;
mike.generate_xml(m,c);
end loop;
end;
And finally, the output:
declare
ERROR at line 1:
ORA-21700: object does not exist or is marked for delete
ORA-06512: at "MMANGINO.MIKE", line 0
ORA-06512: at line 10
Sorry this post is so long, but I wanted it to be complete!
Mike

The first solution is to not do that in java in the first place.
DDL should be in script files which are applied to oracle outside of java.
Other than I believe there are some existing stored procedures in Oracle that take DDL strings and process them. Your user has to have permission of course. You can track them down via the documentation.

Java- Stored Procedure with Call by Result

Hi Oracle-Community,
I am looking for some example Code how to use a Java-Stored Procedure with Out-Parameters. Don't get me wrong. I dont want to call a Procedure with Out Parameters from Java (there are a lot of examples for this out there) . I just want to implement the Call by Result concept in a Java-Stored Procedure. A Client will call this Procedure with some parameters and the Java Procedure will fill them. So my first question: is this possible? And my second Question: How to implement it?
Greetings.

I found out a solution. It is very simple.
Just defining the parameters as java array (e.g. String[] P1). The first value (P1[0]) is the returned value.
At last just set in JDeveloper in the "Edit Method Signature" Dialog the parametermode to OUT.
The dialog can be found by rightclicking on the stored procedure in the dbexport file. You can read this
in Section 6 Publishing Java Classes With Call Specifications -> Setting Parameter Modes in
Oracle Database Java Developer's Guide.

Calling Java Stored Procedure failed SQLXML

I tried to upload a simple class to Oracle in which I want to use java.sql.SQLXML class using:
loadjava -u user/passwd@host:1521:xyz -v -resolve C:\develop\workspaces\Test\src\lbb\apc\test\JavaStoredProcedureTest.java
loadjava answers with:
creating : source lbb/apc/test/JavaStoredProcedureTest
loading : source lbb/apc/test/JavaStoredProcedureTest
resolving: source lbb/apc/test/JavaStoredProcedureTest
errors   : source lbb/apc/test/JavaStoredProcedureTest
    ORA-29535: Quelle erfordert Neukompilierung
    lbb/apc/test/JavaStoredProcedureTest:6: cannot find symbol
    symbol : class SQLXML
    location: package java.sql
    import java.sql.SQLXML;Then I found that the Oracle JDBC driver does not support the SQLXML type, thus changing my program to use XMLType:
XMLType sqlXml = (XMLType)rs.getSQLXML(1);but it doesn't help as well as it doesn't help to use
Clob clob = rs.getClob(1);Finally I tried (and failed) to use
Object obj = rs.getObject(1);
results in:
java.sql.SQLException: ORA-29532:Java call terminated by uncaught Java exception:What can I do to solve this problem?

I wrote it for an example. sorry i should be clear.
Here is the code i am running check WORKING & NOT WORKING lines. What am i missing
PL SQL package
CREATE OR REPLACE PACKAGE BODY APPS.hypr_Reference_designator as
function hypr_xsl ( dbInstance IN VARCHAR2, Parent_ItemNum IN VARCHAR2)
return varchar2
as language java name 'hypr_ref_designator_xsl.hypr_xsl(java.lang.String,java.lang.String) return java.lang.String';
procedure hypr_xsl(dbInstance IN VARCHAR2, Parent_ItemNum IN VARCHAR2)
   is
   itemNum VARCHAR2(30);
   db Varchar2(30);
   print_string varchar2(200);
   begin
      db:=dbInstance;
        itemNum:=Parent_ItemNum;
      print_string := hypr_xsl(db,itemNum); --NOT WORKING
            print_string := hypr_xsl('DEV','123'); --WORKING
      commit;
      DBMS_OUTPUT.PUT_LINE(print_string || db || itemNum);
   end hypr_xsl;
END hypr_Reference_designator;Java Stored Procedure
CREATE OR REPLACE AND RESOLVE JAVA SOURCE NAMED APPS.HYPR_REF_DESIGNATOR_XSL as import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import jxl.*;
import oracle.jdbc.driver.*;
import java.sql.*;
import java.util.Properties;
public class hypr_ref_designator_xsl {
    public hypr_ref_designator_xsl() {
    public static void main(String[] args) {
public static String hypr_xsl(String dbinstance, String parent_itemNum) {
System.out.print(dbinstance);
System.out.print(parent_itemNum);
return "";
//does some process here
}

Calling external servlet from java stored procedure

Hello,
I need to call an external servlet which is in 9iAS server ( unix box) from Java Stored procedure in oracle database.
Can anybody give me an idea? is it possible?
Thanks,
Viswa

I am trying the same. Here is URL which will help u.
http://otn.oracle.com/sample_code/tech/java/jsp/samples/wsclient/Readme.html
Let me know when you run servlet successfully.
Regards
Satish

Java Stored Procedures make OS calls

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