System Call via Java Stored Procedure?

Within a Java stored procedure I do
a FTP Call to a remote Server.
The running FTP Process belongs to
the Oracle System User (Operating System: Linux).
Is there a possibility to run that FTP
call with a different operating system
user?

another example of invoking a Java Stored Prodedure from WITHIN a PL/SQL function? What's the issue here? A java stored procedure is a java class wrapped in PL/SQL. Consequently the invocation from with PL/SQL is a straightforward PL/SQL call.
So what is it that is troubling you?
Cheers, APC

Similar Messages

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

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?

Spring/Hibernate tier called from Java Stored Procedure

Here is my scenario.
Building out a new physical model alongside an old db.
Two schema's inside same Oracle instance.
We are building a new Java tier on top of the new schema using spring/hibernate.
To maintain sync with the old db we are building a load of PLSQL code that will be called by PLSQL stored procs on the old schema.
====
Now it occurred to me that if I could put a copy of my new java tier in the database itself then the trigger code on the old schema could call a java stored proc wrapper which in turn called into my new java tier inside the instance.
This way I avoid duplication business logic in the db sync and the java middle tier. Basically I do away with the PLSQL sync code and just use the new java component.
This clearly has advantages from an automated testing point of view too.
So very interested in how/if anyone has made this work.
Potential issues...
- JVM version (outside the db we use Sun Java 5 - inside the db I'm not sure what is used).
- How would spring access it's config files?

user563578,
You asked:
interested in how/if anyone has made this workNot me.
You also asked:
Potential issues...
- JVM version (outside db use Sun Java 5 - inside db not sure)
- How would spring access it's config files?
Oracle has its own JVM embedded in the database: OJVM
In Oracle 8i it is compatible with JDK 1.2
In Oracle 9i it is comaptible with JDK 1.3
In Oracle 10g it is compatible with JDK 1.4
You can access files outside of the database from OJVM, you just need to set correct permissions.
Perhaps Kuassi Mensah's book, Oracle Database Programming Using Java and Web Services will be of help?
Good Luck,
Avi.

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.

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

ORA-04030: out of process memory when using Java Stored Procedures

Hello,
I have a problem using Java Stored Procedures in Oracle 10g.
My Java application performs http posts to a webservice and the response is parsed in order to populate some DB tables.
There is a scheduled job which calls the Java Stored Procedure every x minutes.
No matter of the 'x minutes' values - after about 160 - 200 calls I get this error:
ORA-04030: out of process memory when trying to allocate 1048620 bytes (joxp heap,f:OldSpace)
ORA-04030: out of process memory when trying to allocate 2097196 bytes (joxp heap,f:OldSpace)
The job stops just while is posting the http request. The weird thing is that almost each time the first http post request I get this error:
java.net.ConnectException: Connection refused
     at java.net.PlainSocketImpl.socketConnect(Native Method)
     at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:305)
     at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:171)
     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:158)
     at java.net.Socket.connect(Socket.java:426)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(DashoA6275)
     at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:324)
     at org.apache.commons.httpclient.protocol.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:140)
     at org.apache.commons.httpclient.protocol.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java:130)
     at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
     at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
     at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
     at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
     at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
and the second try works fine.
So, The out of process memory occured each time just before getting such an error, and I suspect to be a connection between these errors.
Tech details:
1. OS: WinXP
2. Oracle 10.1.0.2.0
3. To perform http post I use HttpClient 3.1 from Apache.
4. I checked the http connection to be closed each time, and this is done.
5. I checked the oracle statement and connection to be closed each time and this is done
6. The JVM error (logged in .trc files of Oracle) is:
java.lang.OutOfMemoryError
     at java.lang.Thread.start(Native Method)
     at sun.security.provider.SeedGenerator$ThreadedSeedGenerator.run(SeedGenerator.java:297)
DB Settings details:
Starting up ORACLE RDBMS Version: 10.1.0.2.0.
System parameters with non-default values:
processes = 200
sessions = 225
shared_pool_size = 159383552
large_pool_size = 8388608
java_pool_size = 104857600
nls_language = AMERICAN
control_files = C:\ORACLE\PRODUCT\10.1.0\ORADATA\XXXXXX\CONTROL01.CTL, C:\ORACLE\PRODUCT\10.1.0\ORADATA\XXXXXX\CONTROL02.CTL, C:\ORACLE\PRODUCT\10.1.0\ORADATA\XXXXXX\CONTROL03.CTL
db_block_size = 8192
db_cache_size = 29360128
compatible = 10.1.0
fal_client = XXXXXX
fal_server = XXXXXXs
log_buffer = 524288
log_checkpoint_interval = 100000
db_files = 70
db_file_multiblock_read_count= 32
db_recovery_file_dest = C:\oracle\product\10.1.0\flash_recovery_area
db_recovery_file_dest_size= 2147483648
standby_file_management = AUTO
undo_management = AUTO
undo_tablespace = undotbs_01
undo_retention = 14400
remote_login_passwordfile= EXCLUSIVE
db_domain =
dispatchers = (PROTOCOL=TCP) (SERVICE=XXXXXXXDB)
remote_dependencies_mode = SIGNATURE
job_queue_processes = 4
parallel_max_servers = 5
background_dump_dest = C:\ORACLE\PRODUCT\10.1.0\ADMIN\XXXXXX\BDUMP
user_dump_dest = C:\ORACLE\PRODUCT\10.1.0\ADMIN\XXXXXX\UDUMP
max_dump_file_size = 10240
core_dump_dest = C:\ORACLE\PRODUCT\10.1.0\ADMIN\XXXXXX\CDUMP
sort_area_size = 1048576
sort_area_retained_size = 1048576
db_name = XXXXXX
open_cursors = 500
optimizer_mode = FIRST_ROWS
pga_aggregate_target = 25165824
Any help would be appreciated. Thanks.
Can be a problem with JVM threading under Oracle ?

The server prcess failed to allocate more memory for large objects ( in Oldspace).
If you Google ORA-04030, you will see several recommendations to work around this.
The Java VM in the database already has HttpClient, i don't know why you are loading the Apache HttpClient but this might not be the surce of the problem.
Kuassi http://db360.blogspot.com

Size limitation that can be passed to Java stored procedure

Hello!
I enjoy using Oracle8i these days. But I have some questions
about Java stored procedure. I want to pass the XML data to Java
stored procedure as IN parameter. But I got some errors when the
data size is long. Is there any limitation in the data size that
can be passed to Java stored procedure?
Would you please help me ?
This message is long, but would you please read my message?
Contents
1. Outline : I write what I want to do and the error message I
got
2. About the data size boundary: I write about the boundary
size. I found that it depend on which calling sequence I use.
3. The source code of the Java stored procedure
4. The source code of the Java code that call the Java stored
procedure
5. The call spec
6. Environment
1.Outline
I want to pass the XML data to Java stored procedure. But I got
some errors when the data size is long. The error message I got
is below.
[ Error messages and stack trace ]
java.sql.SQLException: ORA-01460: unimplemented or unreasonable
conversion reque
sted
java.sql.SQLException: ORA-01460: unimplemented or unreasonable
conversion reque
sted
at oracle.jdbc.ttc7.TTIoer.processError(Compiled Code)
at oracle.jdbc.ttc7.Oall7.receive(Compiled Code)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(Compiled Code)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch
(TTC7Protocol.java:721
at oracle.jdbc.driver.OracleStatement.doExecuteOther
(Compiled Code)
at oracle.jdbc.driver.OracleStatement.doExecuteWithBatch
(Compiled Code)
at oracle.jdbc.driver.OracleStatement.doExecute(Compiled
Code)
at
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(Compiled
Code
at
oracle.jdbc.driver.OraclePreparedStatement.executeUpdate
(OraclePrepar
edStatement.java:256)
at oracle.jdbc.driver.OraclePreparedStatement.execute
(OraclePreparedStat
ement.java:273)
at javaSp.javaSpTestMain.sample_test
(javaSpTestMain.java:37)
at javaSp.javaSpTestMain.main(javaSpTestMain.java:72)
2. About the data size boundary
I don|ft know the boundary that I got errors exactly, but I
found that the boundary will be changed if I use |gprepareCall("
CALL insertData(?)");|h or |gprepareCall ("begin insertData
(?); end ;")|h.
When I use |gprepareCall(" CALL insertData(?)".
The data size 3931 byte --- No Error
The data size 4045 byte --- Error
Whne I use prepareCall ("begin insertData(?); end ;")
The data size 32612 byte --No Error
The data size 32692 byte --- Error
3. The source code of the Java stored procedure
public class javaSpBytesSample {
public javaSpBytesSample() {
public static int insertData( byte[] xmlDataBytes ) throws
SQLException{
int oraCode =0;
String xmlData = new String(xmlDataBytes);
try{
Connection l_connection; //Database Connection Object
//parse XML Data
dits_parser dp = new dits_parser(xmlData);
//Get data num
int datanum = dp.getElementNum("name");
//insesrt the data
PreparedStatement l_stmt;
for( int i = 0; i < datanum; i++ ){
l_stmt = l_connection.prepareStatement("INSERT INTO test
" +
"(LPID, NAME, SEX) " +
"values(?, ?, ?)");
l_stmt.setString(1,"LIPD_null");
l_stmt.setString(2,dp.getElemntValueByTagName("name",i));
l_stmt.setString(3,dp.getElemntValueByTagName("sex",i));
l_stmt.execute();
l_stmt.close(); //Close the Statement
l_stmt = l_connection.prepareStatement("COMMIT"); //
Commit the changes
l_stmt.execute();
l_stmt.close(); //Close the Statement l_stmt.execute
(); // Execute the Statement
catch(SQLException e ){
System.out.println(e.toString());
return(e.getErrorCode());
return(oraCode);
4. The source code of the Java code that call the Java stored
procedure
public static void sample_test(int num) {
//make data
Patient p = new Patient();
byte[] xmlData = p.generateXMLData(num);
try{
// Load the Oracle JDBC driver
DriverManager.registerDriver(new
oracle.jdbc.driver.OracleDriver());
Connection m_connection = DriverManager.getConnection
("jdbc:oracle:thin:@max:1521:test",
"testuser", "testuser");
CallableStatement l_stmt =
// m_connection.prepareCall(" CALL insertData(?)");
m_connection.prepareCall("begin insertData(?); end
l_stmt.setBytes(1,xmlData);
l_stmt.execute();
l_stmt.close();
System.out.println("SUCCESS to insert data");
catch(SQLException e ){
System.out.println( e.toString());
e.printStackTrace();
5. The call spec
CREATE OR REPLACE PROCEDURE insertData( xmlData IN LONG RAW)
AS
LANGUAGE JAVA NAME 'javaSp.javaSpBytesSample.insertData(byte[])';
6. Environment
OS: Windows NT 4.0 SP3
RDBMS: Oracle 8i Enterprise Edition Release 8.1.5.0.0 for
Windows NT
JDBC Driver: Oracle JDBC Drivers 8.1.5.0.0.
JVM: Java1.1.6_Borland ( The test program that call Java stored
procedure run on this Java VM)
null

Iam passing an array of objects from Java to the C
file. The total size of data that Iam sending is
around 1GB. I have to load this data into the Shared
memory after getting it in my C file. Iam working on
HP-UX (64-bit). Everything works fine for around 400MB
of data. When I try to send around 500MB of data, the
disk utilization becomes 100%, so does my memory
utilization and I get a "Not enough space" when I try
to access shared memory. I have allocated nearly 2.5GB
in my SHMMAX variable. Also, I have around 45GB of
disk free. The JVM heap size is also at 2048MB. Where did you get the 400/500 number from? Is that the size of the file?
What do you do with the data? Are you doing nothing but copying it byte for byte into shared memory?
If yes then a simple test is to write a C application that does the same thing. If it has problems then it means you have an environment problem.
If no then you are probably increasing the size of the data by creating a structure to hold it. How much overhead does that add to the size of the data?

Forcing a commit in a JAVA stored procedure

Hi,
I am using a java stored procedure which updates few tables ;only after it completes the call the commit is happening;But i wanted it to commit the tables as and when the processing happens not at the end of the call to java stored procedure because the GUI is polling for changes into the database which will be updated by the stored procedure.
i have already set the connection.setAutoCommit(true) in the code.
Can somebody suggest a solution ?
Thanks in advance
varun

Jason,
Works for me on Oracle 10.1.0.3 running on Red Hat Enterprise Linux AS release 3 (Taroon).
Java code:
import java.sql.*;
* Oracle Java Virtual Machine (OJVM) test class.
public class OjvmTest {
public static void test() throws SQLException {
    Connection conn = DriverManager.getConnection("jdbc:default:connection:");
    PreparedStatement ps = null;
    ResultSet rs = null;
    try {
      ps = conn.prepareStatement("select 'TEST' from SYS.DUAL");
      rs = ps.executeQuery();
      if (rs.next()) {
        System.out.println(rs.getString(1));
    finally {
      if (rs != null) {
        try {
          rs.close();
        catch (SQLException sqlEx) {
          System.err.println("Error ignored. Failed to close result set.");
      if (ps != null) {
        try {
          ps.close();
        catch (SQLException sqlEx) {
          System.err.println("Error ignored. Failed to close statement.");
}And my PL/SQL wrapper:
create or replace procedure P_J_TEST as language java
name 'OjvmTest.test()';And here is how I execute it in a SQL*Plus session:
set serveroutput on
exec dbms_java.set_output(2000)
exec p_j_testGood Luck,
Avi.

No output from java stored procedure

Hi all,
I'm calling my java stored procedure as follows. In my java code I have several System.out.println statements, but none of them are displayed.
Any suggestions or explanations?
Thanks,
Melani
spool $ORACLE_BASE/local/logs/execjava_prod.log
set timing on
SET SERVEROUTPUT ON SIZE 5000
CALL dbms_java.set_output(5000);
variable i varchar2(12)
call getDatesAndLoad('/dbs/TEST/105pd.dmd') into :i;
print i
spool off

In the link you referenced, it says
As a result, System.out and System.err print to the current trace files. To redirect output to the SQL*Plus text buffer, call the procedure set_output() in package DBMS_JAVA, as follows:
SQL> SET SERVEROUTPUT ON
SQL> CALL dbms_java.set_output(2000);
Which is what I have done. So then shouldn't my output be redirected to the sqlplus text buffer?

Oracle stored procedure to Java stored procedure

Hello,
I got a school assignement "Create a java stored procedure and call it out from JAVA program outside database".
I've done it, but in case of JAVA stored procedure I have the procedure written in PL/SQL.
PL/SQL procedure:
CREATE OR REPLACE PROCEDURE getDogInfo
(Dog_ID IN NUMBER, Dog_name OUT VARCHAR) AS
BEGIN
SELECT Name INTO Dog_name
FROM Dog_family
WHERE ID = Dog_ID;
END;
How do I convert it to JAVA stored procedure?
Maybe it's just plain stupid and I should keep it as PL/SQL? I don't know if I have done it right.
Also I don't know what to do with IN/OUT parameters in JAVA.

Could my procedure java class look something like this? I am aware that I have to make a PL/SQL function that is associated with JAVA method CALL, just asking about JAVA Class at the moment.
import java.sql.*;
import java.io.*;
public class Procedure {
public static void getDogInfo (int Dog_ID, String Dog_name)
    throws SQLException
    { String sql =
      "SELECT Dog_name INTO Name FROM Dog_family WHERE ID = Dog_ID";
    try { Connection conn = DriverManager.getConnection("jdbc:default:connection:");
      PreparedStatement apstmt = conn.prepareStatement(sql);
      apstmt.setInt(1, Dog_ID);
      apstmt.registerOutParameter(2, java.sql.Types.VARCHAR);
      ResultSet rset = apstmt.executeQuery();
      rset.close();
      apstmt.close(); //Connection close
    catch (SQLException e) {System.err.println(e.getMessage());
My java program looks like this:
package client;
import java.sql.*;
public class JDBCPiemers {
    static final String JDBC_DRIVER = "oracle.jdbc.OracleDriver";
    static final String DB_URL = "jdbc:oracle:thin:@localhost:1521:ORCL";
    static final String USER = "SYSTEM";
    static final String PASS = "asdasd";
    private String sql;
    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        Connection conn = null;
        CallableStatement stmt = null;
        try {
            //Registering JDBC driver
            Class.forName("oracle.jdbc.driver.OracleDriver");
            System.out.println("Connecting to database ...");
            conn = DriverManager.getConnection(DB_URL, USER, PASS);
            System.out.println("Preparing command...");
            String SQL = "{CALL getDogInfo (?, ?)}";
            stmt = conn.prepareCall(SQL);
            int Dog_ID = 4;
            stmt.setInt(1,Dog_ID);
            stmt.registerOutParameter(2, java.sql.Types.VARCHAR);
            System.out.println("CALL of JAVA stored procedure ...");
            // Executing SQL
            stmt.execute();
            //Using getXXX method
            String Name = stmt.getString(2);
            System.out.println("Printing results ...");
            System.out.println("ID NR. " +Dog_ID + " is Dog with
a name '" + Name + "'" );
            stmt.close();
            conn.close(); }
            catch(SQLException se) {
                //JDBC Errors
                se.printStackTrace(); }
            catch(Exception e) {
                //Errors Class.forName
                e.printStackTrace(); }
            finally {
                //Clossing resurses
                try {if(stmt!=null)
                stmt.close(); }
            catch(SQLException se2) {}
                try {if(conn!=null)
                conn.close(); }
                catch(SQLException se) {se.printStackTrace(); }
                //finally block end
            } // try
            System.out.println("Closing program."); }}

Java Stored Procedure in EXECUTE IMMEDIATE

Hi,
I need advice for the following.
I'm on Oracle 11g R2. I'm testing application in Oracle 11gR1 and R2 and Oracle Express.
Purpose is to generate XML reports.
I have PLSQL Stored Procedure which does that, but since there is bug in Oracle11gR2 related to XMLTRANSFORM I have and Java Stored Procedure which is workaround. They are both compiled, valid etc.
Java class is :
import java.io.PrintWriter;
import java.io.Writer;
import oracle.xml.parser.v2.DOMParser;
import oracle.xml.parser.v2.XMLDocument;
import oracle.xml.parser.v2.XSLProcessor;
import oracle.xml.parser.v2.XSLStylesheet;
* This class is used as Java stored procedure
* There is a bug on Oracle11gR2, related to the limitation on the number of style sheet instructions
* This stored procedure is workaround when PLSQL code can not be used.
* File must not have package, otherwise is wrongly compiled in DB
public class JavaXslt {
     public static void XMLTtransform(oracle.sql.CLOB xmlInput,oracle.sql.CLOB xslInput,oracle.sql.CLOB output) throws Exception{
          DOMParser parser;
          XMLDocument xml;
          XMLDocument xsldoc;
          try{
               parser = new DOMParser();
               parser.parse(xmlInput.getCharacterStream());
               xml = parser.getDocument();
               parser.parse(xslInput.getCharacterStream());
               xsldoc = parser.getDocument();
               XSLProcessor processor = new XSLProcessor();
               XSLStylesheet xsl = processor.newXSLStylesheet(xsldoc);
               Writer w = output.setCharacterStream(1L);
               PrintWriter pw = new PrintWriter(w);
               processor.processXSL(xsl, xml, pw);
          }catch (Exception ex){
               throw ex;
PROCEDURE Java_XmlTransform (xml CLOB, xslt CLOB, output CLOB) AS LANGUAGE JAVA
NAME 'JavaXslt.XMLTtransform(oracle.sql.CLOB, oracle.sql.CLOB, oracle.sql.CLOB)';
I'm calling Java stored procedure from PLSQL Stored procedure (if it is Oracle11gR2) like that :
Java_Proc.Java_XmlTransform(inputXML, xslt, res);
So till here everything works ok. XSLT as applied and output XML (res) is OK.
But when Oracle Express is used Java is out of the question, so there is no Java stored procedure. Howewer PLSQL Stored procedure is still needed.
So I had to put call to Java Stored procedure in EXECUTE IMMEDIATE statement in order to compile to PLSQL package.
But when I do that :
EXECUTE IMMEDIATE 'BEGIN Java_Proc.Java_XmlTransform (:1, :2, :3); END;' USING inputXML, xslt, res;
result value CLOB (res) has zero length...
What am I missing? Should i set return value to Java class?
Hope my explanations are clear though.
Thanks

Hi odie_63,
Thanks for quick response.
I didn't clearly explained.
When using Oracle 11gR1 and Oracle Express I'm using only PLSQL Procedure.
When using Oracle 11gR2 i have to use Java Stored procedure because there is documented bug in R2.
That's why i have to use EXECUTE IMMEDIATE. I don't know which version is the client DB and whether there is or no Java procedures.
I did tried
EXECUTE IMMEDIATE 'BEGIN Java_Proc.Java_XmlTransform (:1, :2, :3); END;' USING IN inputXML, IN xslt, OUT res; and the result was ORA-06537: OUT bind variable bound to an IN position
When using IN OUT for last parameter i.e.
EXECUTE IMMEDIATE 'BEGIN Java_Proc.Java_XmlTransform (:1, :2, :3); END;' USING IN inputXML, IN xslt, IN OUT res;
there is no exception, but still DBMS_LOB.getlength(res) = 0
Thanks

Java Stored Procedure SAXParser XML Schema Validation

Using Oracle XML Developers Kit 10.2.0.2.0 - Production.
Attempting to validate using XML Schema in a Java stored procedure with the code:
               if ( schemaDoc == null )
                    // Obtain default connection
                    Connection conn = new OracleDriver().defaultConnection();
                    OraclePreparedStatement stmt = (OraclePreparedStatement) conn.prepareStatement("SELECT XmlDocObj FROM XmlDoc WHERE XmlDocNbr = 2");
                    OracleResultSet rset = (OracleResultSet)stmt.executeQuery();
                    if ( rset.next() )
                         // get the XMLType
                         XMLType schemaXml = (XMLType)rset.getObject(1);
                         XSDBuilder builder = new XSDBuilder();
                         XMLSchema schemaDoc = (XMLSchema)builder.build(new InputSource(schemaXml.getInputStream()));
               if ( inst == null )
                    inst = new ValidateCoreRequest();
               ErrorHandlerImpl handler = inst.getNewErrorHandler();
SAXParser saxParser = new SAXParser();
saxParser.setXMLSchema(schemaDoc);
saxParser.setValidationMode(XMLParser.SCHEMA_VALIDATION);
saxParser.setErrorHandler(handler);
saxParser.parse(new InputSource(new StringReader(docStr)));
if( handler.validationError )
                    errorMsg[0] = handler.saxParseException.getMessage().substring(0, Math.min(199, handler.saxParseException.getMessage().length()));
Never reports validation errors in the XML. Although the XDK Programmers Guide states "...you can use
the oracle.xml.parser.schema.XSDBuilder class to build an XML schema and
then configure the parser to use it by invoking the XMLParser.setXMLSchema()
method. In this case, the XML parser automatically sets the validation mode to
SCHEMA_STRICT_VALIDATION and ignores the schemaLocation and
noNamespaceSchemaLocation attributes." No validation seems to occur. I have tried to set an xsi:noNamespaceSchemaLocation attribute on the root XML node, but this results in URL errors if the URL is not valid or schema build errors if the URL is valid, but does not point to a real location.
It appears that without a schema location attribute, no schema validation occurs. Using setXMLSchema() with a database source does not seem to cause the schema location attributes to be ignored. At least for Java stored procedures.
Does XML Schema validation work in the database for externally referenced schemas?
Thank You,
Art

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Jan Vissers ([email protected]):
I have two schemas A and B. A contains a java stored procedure which calls a java stored procedure stored in B. Upon resolving the "A" Java Stored Procedures I get the following error:
ORA-29545: badly formed class: at offset 3093 of Adapter.TFADPBeschikbaarheid.sendAanvraag expecting a class-oracle.xml.parser.v2.XMLDocument but encountered a class-oracle.xml.parser.v2.XMLDocument.
... Question:
it is expecting something which it has in fact encountered... SO!!!! What is the error.
Thx,
Jan<HR></BLOCKQUOTE>
Try this:
Edit your XSU installation script located on lib directory of Oracle XSU's distribution:
Find the line:
loadjava -r -v -u $USER_PASSWORD xmlparserv2.jar
Replace by:
loadjava -r -v -g public -u $USER_PASSWORD xmlparserv2.jar
And installs your Oracle XSU again.
Best regards, Marcelo.

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.

How do we connect to a remote database from a Java Stored Procedure?

We have a situation where we are not able to use a PSP (PL/SQL server page) to update a remote database using database link in an Oracle8i database. This is a known bug on 8i and is fixed in 9i. Can this be done using PSP calling a Java stored procedure, which in turn connects to the remote database and performs the update. If so, how we do remote connectivity to another database from the current java stored procedure.

We have a situation where we are not able to use a PSP (PL/SQL server page) to update a remote database using database link in an Oracle8i database. This is a known bug on 8i and is fixed in 9i. Can this be done using PSP calling a Java stored procedure, which in turn connects to the remote database and performs the update. If so, how we do remote connectivity to another database from the current java stored procedure.

System Call via Java Stored Procedure?

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