Runtime.Exec() fails -- Through java stored procedure in Oracle8i

HI,
I HAVE A JAVA STORED PROCEDURE WHICH EXECUTES
A HOST COMMAND USING Runtime.Exec().
BUT IT IS NOT WORKING.
RIGHTS FOR THE USER HAVE BEEN GIVEN USING
Dbms_grant_persmission(). The database in on
SUN SOLARIS. THE EXITVALUE OF THE RUNTIME.EXEC COMMAND IS 255(SEGMENTATION
ERROR - CORE DUMPED).
PLEASE LET ME KNOW WHERE THE PROBLEM LIES. THE FUNCTION IS WORKING WELL IF THE DATABASE IS ON NT PLATFORM BUT FAILS TO WORK WHEN I STORED THE PROCEDURE IN A DATABASE RUNNING ON SUN SOLARIS AND TRIED TO EXECUTE A SOLARIS COMMAND THROUGH THE PROCEDURE.
Thanks for ur interest!
with best regards,
Mathan

I have similar problem on HP-UX, I would appreciate if you
somehow were able to solve it.
Thanks
Rahul Shah

Similar Messages

Invoking "java myClass" using Runtime.Exec from a Java Stored Procedure

Hi All,
This is regarding the use of Runtime.getRunTime().exec, from a java programme (a Java Stored Procedure), to invoke another Java Class in command prompt.
I have read many threads here where people have been successuful in invoking OS calls, like any .exe file or batch file etc, from withing Java using the Runtime object.
Even i have tried a sample java programme from where i can invoke notepad.exe.
But i want to invoke another command prompt and run a java class, basically in this format:
{"cmd.exe","java myClass"}.
When i run my java programme (in command prompt), it doesnt invoke another command prompt...it just stays hanging.
When i run the java programme from my IDE, VisualCafe, it does open up a command prompt, but doesnt get the second command "java myCLass".
Infact on the title of the command prompt (the blue frame), shows the path of the java.exe of the Visual Cafe.
and anyway, it doesnt run my java class, that i have specified inside the programme.
Even if i try to run a JAR file, it still doesnt do anything.
(the JAR file other wise runs fine when i manually invoke it from the command prompt).
Well, my question is, actually i want to do this from a Java Stored Procedure inside oracle 8.1.7.
My feeling is, since the Java Stored Procedure wont be running from the command prompt (i will be actually invoking it through a Oracle trigger), it may be able to invoke the command prompt and run the java class i want. and that java class has to run with the SUn's Java, not Oracle JAva.
Does any one have any idea about it?
Has anyone ever invoked a java class or JAR file in command prompt from another Java Programme?
YOur help will be highly appreciated.
(P:S- Right now, my database is being upgraded, so i havent actually been able to create a Java Stored procedure and test it. But i have tested from a normal java programme running in command prompt and also from Visual Cafe).
Thanks in advance.
-- Subhasree.

Hello Hari,
Thanks for your quick reply.
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Issue with sending mail through java stored procedure in Oracle

Hello
I am using Oracle 9i DB. I created a java stored procedure to send mail using the code given below. The java class works fine standalone. When its run from Java, mail is sent as desired. But when the java stored procedure is called from pl/sql "Must issue a STARTTLS command first" error is thrown. Please let me know if am missing something. Tried the same code in 11.2.0.2 DB and got the same error
Error:
javax.mail.MessagingException: 530 5.7.0 Must issue a STARTTLS command first. va6sm31201010igc.6
Code for creating java stored procedure: (T1 is the table created for debugging)
==================================================
create or replace and compile java source named "MailUtil1" AS
import java.util.Enumeration;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class MailUtil1 {
public static void sendMailwithSTARTTLS(String host, //smtp.projectp.com
String from, //sender mail id
String fromPwd,//sender mail pwd
String port,//587
String to,//recepient email ids
String cc,
String subject,
String messageBody) {
try{
Properties props = System.getProperties();
props.put("mail.smtp.starttls.enable", "True"); // added this line
props.put("mail.smtp.host", host);
props.put("mail.smtp.user", from);
props.put("mail.smtp.password", fromPwd);
props.put("mail.smtp.port", port);
props.put("mail.smtp.auth", "true");
#sql { insert into t1 (c1) values ('1'||:host)};
Session session = Session.getDefaultInstance(props, null);
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
#sql { insert into t1 (c1) values ('2')};
InternetAddress[] toAddress = new InternetAddress[1];
// To get the array of addresses
for( int i=0; i < toAddress.length; i++ ) { // changed from a while loop
toAddress[i] = new InternetAddress(to);
//System.out.println(Message.RecipientType.TO);
for( int i=0; i < toAddress.length; i++) { // changed from a while loop
message.addRecipient(Message.RecipientType.TO, toAddress);
if (cc!=null) {
InternetAddress [] ccAddress = new InternetAddress[1];
for(int j=0;j<ccAddress.length;j++){
ccAddress[j] = new InternetAddress(cc);
for (int j=0;j<ccAddress.length;j++){
message.addRecipient(Message.RecipientType.CC, ccAddress[j]);
message.setSubject(subject);
message.setText(messageBody);
message.saveChanges();
#sql { insert into t1 (c1) values ('3')};
Enumeration en = message.getAllHeaderLines();
String token;
while(en.hasMoreElements()){
token ="E:"+en.nextElement().toString();
#sql { insert into t1 (c1) values (:token)};
token ="ConTyp:"+message.getContentType();
#sql { insert into t1 (c1) values (:token)};
token = "Encod:"+message.getEncoding();
#sql { insert into t1 (c1) values (:token)};
token = "Con:"+message.getContent();
#sql { insert into t1 (c1) values (:token)};
Transport transport = session.getTransport("smtp");
#sql { insert into t1 (c1) values ('3.1')};
transport.connect(host, from, fromPwd);
#sql { insert into t1 (c1) values ('3.2')};
transport.sendMessage(message, message.getAllRecipients());
#sql { insert into t1 (c1) values ('3.3')};
transport.close();
#sql { insert into t1 (c1) values ('4')};
catch(Exception e){
e.printStackTrace();
String ex= e.toString();
try{
#sql { insert into t1 (c1) values (:ex)};
catch(Exception e1)
Edited by: user12050615 on Jan 16, 2012 12:18 AM

Hello,
Thanks for the reply. Actually I have seen that post before creating this thread. I thought that I could make use of java mail to work around this problem. I created a java class that succesfully sends mail to SSL host. I tried to call this java class from pl-sql through java stored procedure. That did not work
So, is this not supported in Oracle ? Please note that I have tested this in both 9i and 11g , in both the versions I got the error. You can refer to the code in the above post.
Thanks
Srikanth
Edited by: user12050615 on Jan 16, 2012 12:17 AM

Host command through java stored procedure

Hi All,
Im trying to execute the winword command to open a MSWord document, print & exit the document, through dos prompt, from client pc to the default printer, through java stored procedure oracle pl/sql forms.
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rgs
paul

If you have configured webutil without any problems then i presume you have configured jacob.jar file too for Client_ole2 to function properly you need to have jacob.jar and jacob.dll files.
There are so many topics in this forum for Client_Ole2. Just simply search. :)
Message was edited by:
Mudabbir

APEX fails with Java stored procedure that creates a JDBC connection

Hello!
We are facing a strange problem since we have upgraded from Oracle 10g and Apache to Oracle 11g with Embedded Gateway.
Here is what we do:
** APEXX calls a PL/SQL package function "OPEN_CONNECTION" that wraps a Java stored procedure called "openConnection".*
FILE_READER_REMOTE_API.openConnection(user, password, host, port, service);
** The Java stored procedures "openConnection" opens a JDBC connection to an other database:*
public class FileReaderRemote {
private static Connection conn = null;
private static DefaultContext remoteContext = null;
public static void openConnection(String user, String password, String host, String port, String service) throws SQLException {
// Load the Oracle JDBC driver
DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
java.util.Properties props = new java.util.Properties();
props.put ("user", user);
props.put ("password", password);
//props.put ("database", "//" + host + ":" + port + "/" + service);
props.put ("database", host + ":" + port + ":" + service);
props.put("v$session.program", "FileReaderRemote2");
// Connect to the database
remoteContext = Oracle.getConnection("jdbc:oracle:thin:", props);
This procedure used to work fine before the upgrade, but now we see the following:
* It still works when called directly from TOAD or SQL*Plus, even under the user ANONYMOUS.
* When called from APEX and the target database is Oracle 11g, it still works.
* When called from APEX and the target database is Oracle 10g, it takes several minutes and we receive this error:
*"Socket read timed out"*
We have tested the following workaround:
We have created a database link to our own database and called the stored procedure through that database link.
FILE_READER_REMOTE_API.openConnection*@loopback*(user, password, host, port, service);
This works, but is not really an option.
I hope some one of you can explain this strange behaviour to me.
Best regards,
Matthias

You wrote
"Java stored procedures -- by definition - are stored in the 8i rdbms. !!"
From the Oracle8i Java Stored Procedures Developer's Guide
Release 8.1.5
A64686-01
"If you create Java class files on the client side, you can use loadjava to upload them into the RDBMS. Alternatively, you can upload Java source files and let the Aurora JVM compile them. In most cases, it is best to compile and debug programs on the client side, then upload the class files for final testing within the RDBMS"
This means that you can create shared classes that are used on both the client and server side. The source does not need to reside within the server (according to their documentation). Please also note the following from the Oracle8i JDBC Developer's Guide and Reference Release 8.1.5 A64685-01 for using the getConnection() method on the server:
"If you connect to the database with the DriverManager.getConnection() method, then use the connect string jdbc:oracle:kprb:. For example:
DriverManager.getConnection("jdbc:oracle:kprb:");
Note that you could include a user name and password in the string, but because you are connecting from the server, they would be ignored."
So if you're coding a shared class that is to run on both the client and server side, you might do something like this:
Connection conn =
DriverManager.getConnection(
System.getProperty("oracle.server.version") == null
? "jdbc:oracle:thin:@hostname:1521:ORCL"
: "jdbc:oracle:kprb:"),
"youruserid","yourpassword");
As stated earlier, the userid and password are supposedly ignored for server connections retrieved in this manner. I haven't tried this yet, but it is documented by Oracle.
Regards,
Steve
null

SQL Server connection in Java Stored Procedures

Is it possible to establish a connection to microsoft sql server through java stored procedures. When I try to create a connetion to SQL Server I am getting the following exception in trace file
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSConnection.<init>(Unknown Source)
at com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown Source)
at com.microsoft.jdbc.base.BaseConnection.getNewImplConnection(Unknown Source)
at com.microsoft.jdbc.base.BaseConnection.open(Unknown Source)
at com.microsoft.jdbc.base.BaseDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java)
at java.sql.DriverManager.getConnection(DriverManager.java)
The connection details are correct and I am able to connect when I run the java code externally. Thanks in advance for the help

Can you connect to the MSSQL database from inside Oracle in (say) a SQL*Plus or SQL Developer session?
In other words, is the problem in the Java or the database linkages? Are you using Heterogeneous Services or Transparent Gateways?
Cheers, APC
blog: http://radiofreetooting.blogspot.com

Issue with XSL transformation in Java Stored Procedure

Hi,
Am having issue applying XSL transformation in Java Stored procedure. I have loaded the java class as well as .XSL files through loadjava uility and their status in DB is VALID.
Below is the code in the java stored procedure:
public static String tranform(String strInputXML ){
URL url = ClassLoader.getSystemClassLoader().getResource(first.xsl);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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TransformerFactory tFactory = TransformerFactory.newInstance();
StreamSource stylesource = new StreamSource(url.openStream());
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When I run this procedure, am getting following errors:
{color:#ff0000}*ERROR: 'No such file or directory'*
FATAL ERROR: 'Could not compile stylesheet'{color}
My first.xsl file has reference to other excel file (Ex: <xsl:include href="second.xsl"/>) which seems to be causing this error. When I remove the reference, procedure is working fine.
Pls let me know how to resolve this and read the .XSL file with references.
Thanks,

Hello,
Thanks for the reply. Actually I have seen that post before creating this thread. I thought that I could make use of java mail to work around this problem. I created a java class that succesfully sends mail to SSL host. I tried to call this java class from pl-sql through java stored procedure. That did not work
So, is this not supported in Oracle ? Please note that I have tested this in both 9i and 11g , in both the versions I got the error. You can refer to the code in the above post.
Thanks
Srikanth
Edited by: user12050615 on Jan 16, 2012 12:17 AM

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:
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loading : source lbb/apc/test/JavaStoredProcedureTest
resolving: source lbb/apc/test/JavaStoredProcedureTest
errors   : source lbb/apc/test/JavaStoredProcedureTest
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XMLType sqlXml = (XMLType)rs.getSQLXML(1);but it doesn't help as well as it doesn't help to use
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Object obj = rs.getObject(1);
results in:
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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)
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   db Varchar2(30);
   print_string varchar2(200);
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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
}

Java App connection to an Oracle Database through Oracle Stored Procedure

My team's access to its Databases (Oracle only) is restricted to access through Oracle Stored Procedures that are part of the Oracle Database. So, in my Java App I need to call the Stored Procedure that will give me the access to the table that I need, declare the right parameters and execute the command. The Stored Procedure will then hand me the data I need.
I am finding support on the web for creating Stored Procedures in Java, but that is not what I need.
Can anyone post here a class that addresses this, or point me to a link that will shed some light on it?
Thanks
user606303

user606303 wrote:
Sorry this code is unformatted - I can't see how to format it.Use \ tags
I am looking for Java code that will do what this .NET code below does (connects to a database and writes data to the table through an Oracle stored procedure that is part of the Oracle Database.)
So learn Java, learn JDBC and translate the requirements; don't attempt to translate the code as the platforms are too different.
From a quick glance it looks like a JDBC CallableStatement can do the job.

Executing batch file from Java stored procedure hang

Dears,
I'm using the following code to execute batch file from Java Stored procedure, which is working fine from Java IDE JDeveloper 10.1.3.4.
public static String runFile(String drive)
String result = "";
String content = "echo off\n" + "vol " + drive + ": | find /i \"Serial Number is\"";
try {
File directory = new File(drive + ":");
File file = File.createTempFile("bb1", ".bat", directory);
file.deleteOnExit();
FileWriter fw = new java.io.FileWriter(file);
fw.write(content);
fw.close();
// The next line is the command causing the problem
Process p = Runtime.getRuntime().exec("cmd.exe /c " + file.getPath());
BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line;
while ((line = input.readLine()) != null)
result += line;
input.close();
file.delete();
result = result.substring( result.lastIndexOf( ' ' )).trim();
} catch (Exception e) {
e.printStackTrace();
result = e.getClass().getName() + " : " + e.getMessage();
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The above code is used in getting the volume of a drive on windows, something like "80EC-C230"
I gave the SYSTEM schema the required privilege to execute the code.
EXEC DBMS_JAVA.grant_permission('SYSTEM', 'java.io.FilePermission', '<<ALL FILES>>', 'read ,write, execute, delete');
EXEC DBMS_JAVA.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
EXEC DBMS_JAVA.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
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I have used the following to load the class in Oracle 9ir2 DB:
loadjava -u [system/******@orcl|mailto:system/******@orcl] -v -resolve C:\Server\src\net\dev\Util.java
CREATE FUNCTION A1(drive IN VARCHAR2) RETURN VARCHAR2 AS LANGUAGE JAVA NAME 'net.dev.Util.a1(java.lang.String) return java.lang.String';
variable serial1 varchar2(1000);
call A1( 'C' ) into :serial1;
The problem that it hangs when I execute the call to the function (I have indicated the line causing the problem in a comment in the code).
I have seen similar problems on other forums, but no solution posted
[http://oracle.ittoolbox.com/groups/technical-functional/oracle-jdeveloper-l/run-an-exe-file-using-oracle-database-trigger-1567662]
I have posted this in JDeveloper forum ([t-853821]) but suggested to post for forum in DB.
Can anyne help?

Dear Peter,
You are totally right, I got this as mistake copy paste. I'm just having a Java utility for running external files outside Oracle DB, this is the method runFile()
I'm passing it the content of script and names of file to be created on the fly and executed then deleted, sorry for the mistake in creating caller function.
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The function script is running perfect if I'm executing vbs script outside Oracle using something like "cscript //NoLogo aaa1.vbs", but when I use the command line the call just never returns to me "cmd.exe /c bb1.bat".
where content of bb1.bat as follows:
echo off
vol C: | find /i "Serial Number is"
The above batch file just get the serial number of hard drive assigned when windows formatted HD.
Same code runs outside Oracle just fine, but inside Oracle doesn't return if I exectued the following:
variable serial1 varchar2(1000);
call A1( 'C' ) into :serial1;
Never returns
Thanks for tracing teh issue to that details ;) hope you coul help.

[b]Java Stored Procedure generating ora-932 in Oracle 9i [/b]

Hi ,
I have written a Java Stored procedure. And I have written a wrapper function as bellow
FUNCTION "GENERATE_AC_EXCEL_REPORT_FN"
( refCursorCall VARCHAR2, fromDate Date, ToDate Date,
nsn VARCHAR2, period varchar2, site VARCHAR2,
vendor VARCHAR2, spotbuyType VARCHAR2, dataType, VARCHAR2 )
return number
as LANGUAGE java
NAME 'accountingExcelReports.excelPrinter( java.lang.String, java.sql.Date, java.sql.Date, java.lang.String,java.lang.String , java.lang.String,
java.lang.String, java.lang.String , java.lang.String) return int';
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This used to execute fine in Oracle 8.1.7.
We installed Oracle 9i recently.
Server version is 9.2.0.2.1.
Jserver version is 9.2.0.2.0 .
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This is happening during passing parameters.
SQL> select
2 generate_ac_EXCEL_report_fn('Period', to_date('7-1-2002','MM-DD-YYYY'),
3 to_date('7-31-2002','MM-DD-YYYY'), NULL,
4 NULL, NULL, NULL, 'ALL' ,'SPOTBUY') from dual;
GENERATE_AC_EXCEL_REPORT_FN('PERIOD',TO_DATE('7-1-2002','MM-DD-YYYY'),TO_DATE('7-31-2002','MM-DD-YYY
1000
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2 generate_ac_EXCEL_report_fn('Period', to_date('7-1-2002','MM-DD-YYYY'),
3 to_date('7-31-2002','MM-DD-YYYY'), NULL,
4 NULL, NULL, NULL, 'ALL' ,'SPOTBUY') from dual;
select
ERROR at line 1:
ORA-00932: inconsistent datatypes: expected IN Conversion failed
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The same program worked fine in Oracle 8.1.6
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Hi Srinivas,
you shouldn't be calling conn.close() and its not needed when using Server Side Internal driver. If you are calling conn.close, then .....
extract from JDBC user guide
If you do call the close() method, be aware of the following:
All connection instances obtained through the defaultConnection() method, which actually all reference the same connection object, will be closed and
unavailable for further use, with state and resource cleanup as appropriate. Executing defaultConnection() afterward would result in a new connection
object.
Even though the connection object is closed, the implicit connection to the database will not be closed.
http://otn.oracle.com/docs/products/oracle9i/doc_library/release2/java.920/a96654/advanc.htm#1001042
Elango.

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.
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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:");
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    ResultSet rs = null;
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        try {
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        try {
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        catch (SQLException sqlEx) {
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}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.

Missing Defines Error in Simple Java Stored Procedure

Anyone have any suggestions on what might be causing the unusual behavior described below? Could it be a 10g java configuration issue? I am really stuck so I'm open to just about anything. Thanks in advance.
I am writing a java stored procedure and am getting some SQLException's when executing some basic JDBC code from within the database. I reproduced the problem by writing a very simple java stored procedure which I have included below. The code executes just fine when executed outside of the database (10g). Here is the output from that execution:
java.class.path=C:\Program Files\jEdit42\jedit.jar
java.class.version=48.0
java.home=C:\j2sdk1.4.2_04\jre
java.vendor=Sun Microsystems Inc.
java.version=1.4.2_04
os.arch=x86
os.name=Windows XP
os.version=5.1
In getConnection
Executing outside of the DB
Driver Name = Oracle JDBC driver
Driver Version = 10.1.0.2.0
column count=1
column name=TEST
column type=1
TEST
When I execute it on the database by calling the stored procedure I get:
java.class.path=
java.class.version=46.0
java.home=/space/oracle/javavm/
java.vendor=Oracle Corporation
java.version=1.4.1
os.arch=sparc
os.name=Solaris
os.version=5.8
In getConnection
We are executing inside the database
Driver Name = Oracle JDBC driver
Driver Version = 10.1.0.2.0
column count=1
column name='TEST'
column type=1
MEssage: Missing defines
Error Code: 17021
SQL State: null
java.sql.SQLException: Missing defines
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:158)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:206)
at oracle.jdbc.driver.OracleResultSetImpl.getString(Native Method)
at OracleJSPTest.test(OracleJSPTest:70)
Here is the Java code:
// JDBC classes
import java.sql.*;
import java.util.*;
//Oracle Extensions to JDBC
import oracle.jdbc.*;
import oracle.jdbc.driver.OracleDriver;
public class OracleJSPTest {
private static void printProperties(){
     System.out.println("java.class.path="+System.getProperty("java.class.path"));
     System.out.println("java.class.version="+System.getProperty("java.class.version"));
     System.out.println("java.home="+System.getProperty("java.home"));
     System.out.println("java.vendor="+System.getProperty("java.vendor"));
     System.out.println("java.version="+System.getProperty("java.version"));
     System.out.println("os.arch="+System.getProperty("os.arch"));
     System.out.println("os.name="+System.getProperty("os.name"));
     System.out.println("os.version="+System.getProperty("os.version"));
private static Connection getConnection() throws SQLException {
     System.out.println("In getConnection");
Connection connection = null;
// Get a Default Database Connection using Server Side JDBC Driver.
// Note : This class will be loaded on the Database Server and hence use a
// Server Side JDBC Driver to get default Connection to Database
if(System.getProperty("oracle.jserver.version") != null){
          System.out.println("We are executing inside the database");
          //connection = DriverManager.getConnection("jdbc:default:connection:");
          connection = new OracleDriver().defaultConnection();
}else{
     System.out.println("Executing outside of the DB");
     DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
     connection = DriverManager.getConnection("jdbc:oracle:thin:@XXX.XXX.XXX.XX:XXXX:XXXX","username","password");
DatabaseMetaData dbmeta = connection.getMetaData();
System.out.println("Driver Name = "+ dbmeta.getDriverName());
System.out.println("Driver Version = "+ dbmeta.getDriverVersion());
return connection;
public static void main(String args[]){
     test();
public static void test() {
     printProperties();
Connection connection = null; // Database connection object
try {
     connection = getConnection();
     String sql = "select 'TEST' from dual";
     Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery(sql);
     ResultSetMetaData meta = rs.getMetaData();
     System.out.println("column count="+meta.getColumnCount());
     System.out.println("column name="+meta.getColumnName(1));
     System.out.println("column type="+meta.getColumnType(1));
     if(rs.next()){
          System.out.println(rs.getString(1));
} catch (SQLException ex) { // Trap SQL Errors
     System.out.println("MEssage: " + ex.getMessage());
     System.out.println("Error Code: " + ex.getErrorCode());
     System.out.println("SQL State: " + ex.getSQLState());
     ex.printStackTrace();
} finally {
try{
if (connection != null || !connection.isClosed())
connection.close(); // Close the database connection
} catch(SQLException ex){
ex.printStackTrace();
Message was edited by:
jason_mac

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.

Invoking Unix command with java stored procedure

Hi,
I have a perfectly working environment and now I am trying to replicate the same in another server. I have a java stored procedure which invokes the Unix command using java Runtime.exec() in my code named "run". I am sure that the code is called and the java class run is resolved in oracle as I could see that in dba_java_resolvers dictionary. But I am not sure whether the function in java is called or whether a exception is thrown. how to identify this? Could there be any thing to do with settings in oracle side? please help me.
Thanks in advance,
Marutha

Hi,
Do you get any output while running the code?
I'm testing similar solution and if there are any errors or Oracle can't execute the program due to permissions or other issues the error information will be displayed. Also in the Java class itself you need to catch exceptions and print stack trace to standard output.
declare
x number;
begin
dbms_output.enable(1000000);
dbms_java.set_output(1000000);
x:=system_command.run_command('testconnect.sh');
dbms_output.put_line('Returned value='||x);
exception
when others then dbms_output.put_line('Sql error='||substr(sqlerrm,1,250));
end;
<system_command.run_command> - replace with a call to your java stored procedure.

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...
}

Runtime.Exec() fails -- Through java stored procedure in Oracle8i

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