Create connection in discoverer

Hi all,
I am not able to see create connection in discoverer...I went to Enterprise Manager-->Discoverer-->Administration
But in the Configuration tab
i cant see
1.Private connection
2.Public connection
only services logging is seen..
Is it due to version problem...?
Can anyone put light on this issue
Thanks,
Anjali

Hi,
I recommend you read this post:
Re: Public/private connections with Discoverer
It can help you.
Best Regards.

Similar Messages

Not able to create connection or reset the password in Discoverer Plus

I keep encountering errors when
I try to create a connection or change my password. Below are the error I get.
During Change of Password:
"An invalid connection key was specified. Please correct the connection
key and try again."
During Creating Connection :
" A connection error has occurred.
- The application encountered an invalid state."
I am currently using Discoverer 10g Plus.

Hi All,
I got the Solution.Its is to do with the 'Default_role' setup in 'DBA_ROLE_PRIV' table.the user should be setup up as 'DEFAULT_ROLE' = 'YES' in the mentioned table.
Thanks,
HP

How to create punlic connection in discoverer plus

Hi All,
There is one public connetion in discoverer plus but now it is disable , i dont know how to create public connetion
pls help me its urgent
thanks
regards,

See you duplicate post - how to create public connection in discoverer plus
Srini

Connect to Discoverer behind the scenes

From my application I want the users to directly connect to the Discoverer without showing them the connection page.
I plan to use webservices api to connect to Discoverer and login.
Now how do I let the client browser connect to discoverer, how do I let Discoverer know that I have been authenticated?
Does Discoverer use any cookies.
Would not want to do a POST operation.
I am using private connections.
Edited by: user8810024 on Apr 13, 2011 11:31 AM

Hi Rod,
So I would create a condition that contains a condition on the left side:
put the entire condition on the left side like this?
CASE WHEN DECODE(Hold desc,'HIPAA',999,NULL,0,500) = MAX(DECODE("Hold desc",'HIPAA',999,NULL,0,500)) OVER (PARTITION BY Student.Id ) THEN 1 ELSE 0 END
= 1
I am a little confused:
a) Does this condition, simply control whether the calculation shows in the query?
b) or Does the condition also do the logic of the condition
to select rows that are = to the max(hold desc) for the student id?
c) If yes to (b) , then I should delete my existing condition of:
DECODE(Hold desc,'HIPAA',999,NULL,0,500) = MAX(DECODE("Hold desc",'HIPAA',999,NULL,0,500)) OVER
(PARTITION BY Student.Id )
d) If yes to (c), then I always want this condition checked off, bec it contains the filtering logic, so how could
I ever uncheck this condition so that calc should not show. If I uncheck it then the filtering would not run?
I am puzzled ... can you pls clarify, tx, s

Can't Connect to Discoverer: Error Message

I came into work this morning and found the users cannot connect to Discoverer. I can't either. I was hoping to possibly get some help here. Has anyone received the error message I am about to post? I would be very grateful for any help! Here is the error message in full:
Error
An error occurred while creating the session. Please check for other errors.
- oracle.discoiv.connections.ConnectionStoreException: Unable to establish secure connection to Oracle Internet Directory Server ldap://orasrv2:636/ Base Exception : javax.naming.CommunicationException: orasrv2:636 [Root exception is java.net.ConnectException: Connection refused: connect]
- Unable to establish secure connection to Oracle Internet Directory Server ldap://orasrv2:636/ Base Exception : javax.naming.CommunicationException: orasrv2:636 [Root exception is java.net.ConnectException: Connection refused: connect]
- Unable to establish secure connection to Oracle Internet Directory Server ldap://orasrv2:636/ Base Exception : javax.naming.CommunicationException: orasrv2:636 [Root exception is java.net.ConnectException: Connection refused: connect]
Unable to retrieve connection list
- The connection list could not be retrieved. See other error messages for details.

Ok, the fire has been put out. Our dba just rebooted the server Disco was running on and it seemed to fix the problem. We still don't know why it happened, so if anyone recognizes that error, I wouldn't mind a heads-up on why it occured in the 1st place if you know.
Thanks!

Connect to Discoverer

Hi all,
is there an API we can use to connect to Discoverer to view reports? Or it must be done through the viewer? What we're trying to do is
a) get a list of reports (worksheets)
b) query the worksheets for parameters
c) for a given worksheet prefill some of the parameters,
for the rest we want the user to provide the value.
We want to connect from EJB's. Is there a way or we must manipulate the Viewer's
url's?
Thanks

Hi,
Besided the End User Edition, you need the Administrator Edition to create an EUL and create the contents of the EUL. Maybe someone has done this for you already (but I don't assume that's the case, since you mention having the system password, which sounds like a stand-alone-try-out-on-PC-or-something, right?).
If there already is an EUL then the administrator account should give you the required privileges for Discoverer and grant access to the create contents (Business Area's).
If not, I suggest you start reading some documentation (please verify the version of Discoverer you're using) on http://www.oracle.com/technology/documentation/index.html
(reading the documentation is never a bad idea, even if someone else has set up the EUL for you!).
Regards,
Sabine

Problem with EJB and JMS - Failed to obtain/create connection

hello ejb and jms programmers,
My problem is my topic MDB keep on retrieving the same message when there is a database connection failure. Maybe somebody could help me how to prevent to retrieve the same data?
Given:
- I purposedly turn off the pointbase database because im testing my error handling.
- Im using SJSAS 8 as my application server.
- My message Driven Bean of topic type.
- Im using CMP for my entity bean
Here is the scenario of whats happening - step by step:
1. A separate application publishes a message to JMS queue server
2. My MDB retrieves this message and do some processing then inserts a record (transaction history) in my database
3. But my db is turned off or down
4. My MDB sends a successful processing reply to the JMS queue server
5. Then i noticed that my server.log keeps on growing so when i opened it, the record was not inserted and printed the stacktrace below "RAR5117 : Failed to obtain/create connection. Reason : javax.transaction.SystemException" (complete stacktrace below)
6. I understand the cause of the stacktrace is because the DB is turned off. But what i dont understand is that my MDB keeps on reading the same message. Since my MDB is of topic type, isnt a topic MDB supposedly reads a message only once???
So my questions are:
1. how do i handle insert database error?
2. how can i stop my MDB from processing the same message?
3. any better suggestions?
Thank you in advance :)
leigh
*** more complete stack trace ***
[#|2005-01-09T15:35:57.097+0800|WARNING|sun-appserver-pe8.0.0_01|javax.enterprise.system.core.transaction|_ThreadID=17;|JTS5041: The resource manager is doing work outside a global transaction
javax.transaction.xa.XAException
     at com.pointbase.xa.xaException.getXAException(Unknown Source)
     at com.pointbase.xa.xaConnectionResource.start(Unknown Source)
     at com.sun.gjc.spi.XAResourceImpl.start(XAResourceImpl.java:162)
[#|2005-01-09T15:35:57.167+0800|SEVERE|sun-appserver-pe8.0.0_01|javax.enterprise.resource.resourceadapter|_ThreadID=17;|RAR5027:Unexpected exception in resource pooling
javax.transaction.SystemException
     at com.sun.jts.jta.TransactionImpl.enlistResource(TransactionImpl.java:185)
     at com.sun.enterprise.distributedtx.J2EETransaction.enlistResource(J2EETransaction.java:360)
     at com.sun.enterprise.distributedtx.J2EETransactionManagerImpl.enlistResource(J2EETransactionManagerImpl.java:303)
     at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.enlistResource(J2EETransactionManagerOpt.java:115)
[#|2005-01-09T15:35:57.177+0800|WARNING|sun-appserver-pe8.0.0_01|javax.enterprise.resource.resourceadapter|_ThreadID=17;|RAR5117 : Failed to obtain/create connection. Reason : javax.transaction.SystemException|#]
[#|2005-01-09T15:35:57.227+0800|WARNING|sun-appserver-pe8.0.0_01|javax.enterprise.resource.resourceadapter|_ThreadID=17;|RAR5114 : Error allocating connection : [Error in allocating a connection. Cause: javax.transaction.SystemException]|#]
[#|2005-01-09T15:35:57.237+0800|SEVERE|sun-appserver-pe8.0.0_01|javax.enterprise.system.container.ejb|_ThreadID=17;|EJB5071: Some remote or transactional roll back exception occurred
com.sun.jdo.api.persistence.support.JDODataStoreException: JDO77006: SQL exception: state = null, error code = 0.
NestedException: java.sql.SQLException: Error in allocating a connection. Cause: javax.transaction.SystemException
FailedObjectArray: [[email protected]5ac]
     at com.sun.jdo.spi.persistence.support.sqlstore.impl.TransactionImpl.getConnectionInternal(TransactionImpl.java:1444)
     at com.sun.jdo.spi.persistence.support.sqlstore.impl.TransactionImpl.getConnection(TransactionImpl.java:1339)

Hi annie,
Wherever you are handling database transactions,
you'd not be able to create a Connection if database
is closed (I think you mentioned turning off the
database) then at this condition, you should
certainly throw a System level exception and stop all
processing with some meaningful flow to indicate a
failure (like display message on UI). Even
network problems are handled by exceptions... so I
don't see a reason why you didn't wrap it in the
first place.
Anyway, try handling specific exceptions rather than
the general Exception... this will give you a better
idea of what to do in case of an exception.Yes i know this. I am practicing this in my non-j2ee server applications. But the j2ee app im making, i just pass the db url in the descriptor and the app server automatically creates the connection for my app. So where would i put exception handling?
2. how can i stop my MDB from processing the same
message?Guaranteed delivery is not supposed to stop
processing. It will continue to process the message
after certain intervals till the message is
delivered. You shouldn't deliver it at all, if you
are able to detect that the database is off
The problem here is that my MDB automatically retrieves the message from the JMS queue server. Im not the one retrieving the messages manually.
My assumed behavior of topic MDB is once the a certain MDB retrieves a message it will not retrieve the same message anymore.
thank you in advance.
leigh

Data Quality - Failed to create connection to MDR.

Hi All,
I have installed Data Quality 11.7.2 on windows 2003 server using SQL 2005 (Both SQL 2005 server and Data Quality are in the same server) , The install was successful. But when I try to Open 'Data Quality Project Architect' it throws an error
Failed to create connection to MDR.
Driver error messgage = qodbc_mssql:
Unable to connect, Database error message =] [microsoft][odbc sql server driver]
[ tcp/ip sockets] sql server does not exist or access denied
I checked the ODBC connection and tested it successfully too.
I am not able to pass through the 'Meta Data Repository Connection' as its failing in 'Setup SQL connection option'
Any help is appreciated !!!
Thanks
Ranjit Krishnan

Hi Paul,
Thanks for you reply, OBDC connection was created under System DSN, also tired the users DSN option too, but did not work.
Recreated the ODBC connection many times still no luck.
The 'Project Architect' client and the MDR (SQL 2005 Server) are on the same machine.
Thanks
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How dynamically create connection pool and Datasource

Hi
How I can dynamically create a connection pool and Data source in Oracle 10g Application server. In our J2EE application the user will be login with db user name, password and database name. I want to create connection pool and data source on the fly while login the user with database name. I our application we have access approximate 80 Databases. so my approach is given bellow
1) Planning to create 80 connection pools and 80 Data sources so when user logs in while selecting the db name i will call the appropriate data source and create the DB connection. Is there any limitation to create number of data sources in oracle app server?
2) Create DB connection with out using connection pool and data source. But i am not prefer this approach coz we need to handle some transaction in our application.
Kindly throw some light on managing connection pool programmatically or in application run time.
I would really appreciate if any one can provide any links or any inormation on this issue.
Thanks in advance.

Kindly let me know is there any drawbacks to create 80 Data Sources to connect 80 database in Oracle 10G App server and each data sources should have one connection pool. so i need to create 80 connection pool. Please let me know is this right approach or any work around to create Data source on fly for each request for corresponding database.

Error in creating connection object

Dear Experts
When I am creating connection object using ES55 , I get Stop message saying : " Alternate ID not supported" and when i see Help it indicates : An alternative indicator is active in Customizing of the functional location. This functionality is not supported for connection objects and device locations
what could be going wrong
Plesae suggest me the solution
Thanking you in advance
warm regards
narasimha

Hi,
Please check the following settings in SPRO:
Plant Maintenance & Customer Service - -Master Data in Plant Maintenance & Customer Service --Technical Objects --Functional Locations --Alternate Labeling of Functional Locations - - Activate Alternative Labeling --
In this setting pls inactive the setting for Alt.Label.Then go to ES55 and try.It will work.
Thanks,
Banasri Mitra

Failed to obtain/create connection from connection pool after redeploy

I have a web application (.war) that uses a jdbc connection pool. The application works fine, however after I redeploy it using the administration console I get "Failed to obtain/create connection from connection pool [ Datavision_Pool ]. Reason : null" followed by "Error allocating connection : [Error in allocating a connection. Cause: null]" from javax.enterprise.resource.resourceadapter and I am forced to restart the instance. I am running Sun Java System Application Server 9.1 (build b58g-fcs)
using a connection pool to a Microsoft SQL 2000 database using inet software's JDBC drivers. I need to be able to redeploy applications without having to restart the instance. Any help is appreciated.

I have turned on some additional diagnostics and found out some answers and a work-around, but I think that there may be a bug in the way JDBC connection pool classes are loaded. The actual error was a null pointer in the JDBC driver class in the perpareStatement method. The only line in this method is "return factory.createPreparedStatement( this , sql );" and the only possible NPE would be if the factory was null, which should be impossible because it is a static variable and it is initialized when the class is loaded. The problem occurs because we deploy the JDBC driver .jar file within our .war file, for use when a client doesn't have or want to use connection pooling. Apparently, the connection pool must have picked up some of these classes and when the .war was redeployed, the reference to the factory was lost for existing connections (not sure how). If I remove the JDBC .jar file from the .war, it works, but that wasn't an ideal solution, the other way to get it to work was to change the sun-web.xml file to have <class-loader delegate="true">. We previously had it set to false in version 8.1 because of interference with a different version of the apache Tiles classes, which has now been addressed in version 9.1.
I still think there is an issue, because the connection pool should never use the application specific classloaders. Am I wrong to believe this?

Error Message while creating connection pool

Hi all,
I got the following error message while creating connection pool for the
SQL Server thru the Application Server Admin Console.
The message is,
An error has occured.
Operation 'create.Jdbc.ConnectionPool' failed in 'resources' Config Mbean. Target exception message :
JdbcConnectionPool Already Exists: cannot add duplicate.
But the connection pool for the SQL Server was not there in the list.
What may be the possible reason for this error.
i was trying to deploy a BMP entiy bean using the Sun Application Server.
Prior deploying i just tried to create connection pool and test the connection using the Admin Console
Please help me by providing a solution.

Kriti Sundar Mazumder wrote:
Hi
I am getting an following error message, while creating database connection pool
in weblogic 7.
"<Jun 18, 2004 4:52:36 AM CDT> <Error> <JDBC> <001060> <Cannot startup connection
pool "MyJDBCConnectionPool" java.sql.SQLException: [IBM][JDBC Driver] CLI0647E
Error allocating DB2 environment handle, rc=-1.>"
Can anyone help me out in this regard
Regards
KritiHi. I am no expert, but it sounds like a problem with the privileges the user
has... The best thing is to step back to a simpler environment. Can you try
connecting to DB2 with a simple program like utils.dbping? Please look at our
driver docs for the DB2 driver, because there are several variations in connect
properties depending on the type of DB2 you are connecting to...
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Issue while creating connection pool in weblogic using SERVICE NAME

Found two issues while creating connection pool in weblogic using SERVICE NAME
1. While running apps from jdeveloper using xxx-jdbc.xml
weblogic.common.ResourceException: Could not create pool connection. The DBMS driver exception was: Io exception: The Network Adapter could not establish the connection
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(ConnectionEnvFactory.java:253)
     at weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1109)
     at weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1033)
     at weblogic.common.resourcepool.ResourcePoolImpl.start(ResourcePoolImpl.java:214)
     at weblogic.jdbc.common.internal.ConnectionPool.doStart(ConnectionPool.java:1051)
2. Configuriing the jndi in Weblogic server
weblogic.common.ResourceException: Could not create pool connection. The DBMS driver exception was: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
localhost:1521:SERVICENAME
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(ConnectionEnvFactory.java:253)
     at weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1109)
     at weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1033)
Problem
database url is generated based on SID
eg: jdbc:oracle:thin:@localhost:1521:SID
Solution
(generate seperate url for SERVICE NAME)
jdbc:oracle:thin:@localhost:1521/SERVICENAME
------------------------

It is so clear: host not found error for network connection and the other SID servcie name not found means your oracle instance name is not up. check with srvctl status for given servcie name or node, else check CRS_Stat -t if you are using RAC.

Unable to Create Connection ( Connection error DA0005) in DESKI 3 TIER

Hi ,
I have strange error of connection in DESKI 3 Tier.
Work Flow:
=> Wanted to create a deski report in Three Tier( from Infoview) using specific universe.
=> When I ran query it gives me error saying Connection error DA0005( Unable to create connection)
Work around did
=> Created Webi report using same univerese reprort ran fine.
The connection is there on enterprise I don't know whats going wrong.
Can any one help me with this error
Neo.

Hi Experts ,
Any suggestions on this please
Environment : BOXI 3.1 SP3 , OS: AIX , APPS: WAS7, DB Trying to connect is DB2

Problem with creating Connection pool and JNDI, driver is not detected

Hi,
I have an issue with creating Connection Pool and JNDI.
I'm using:
- JDK 1.6
- OS: Linux(ubuntu 8.10)
- Netbeans IDE 6.5.1
- Java EE 5.0
- Apache Tomcat 6.0.18 Its lib directory contains all necessary jar files for Oracle database driver
- Oracle 11g Enterprise
My problem is that the Oracle database driver is not detected when I want to create a pool (it works pretty well and is detected without any problem when I create ordinary connection by DriverManager)
Therefore after running:
InitialContext ic = new InitialContext();
Context context = (Context)ic.lookup("java:comp/env");
DataSource dataSource = (DataSource)context.lookup("jdbc/oracle11g");
Connection connection = dataSource.getConnection();and right after dataSource.getConnection() I have the following exception:
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.OracleDriver'
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1136)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at servlets.Servlet1.doPost(Servlet1.java:47)
at servlets.Servlet1.doGet(Servlet1.java:29)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1130)
... 17 more
My application context file (context.xml) is:
<?xml version="1.0" encoding="UTF-8"?>
<Context path="/WebApplication3">
<Resource auth="Container"
                  driverClassName="oracle.jdbc.OracleDriver"
                  maxActive="8"
                  maxIdle="4"
                  name="jdbc/oracle11g"
                  username="scott"
                  password="tiger"
                  type="javax.sql.DataSource"
                  url="jdbc:oracle:thin:@localhost:1521:database01" />
</Context>and my web.xml is:
    <resource-ref>
        <description>Oracle Datasource example</description>
        <res-ref-name>jdbc/oracle11g</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
    </resource-ref>
...I found similar threads in different forums including sun, such as
http://forums.sun.com/thread.jspa?threadID=567630&start=0&tstart=0
http://forums.sun.com/thread.jspa?threadID=639243&tstart=0
http://forums.sun.com/thread.jspa?threadID=5312178&tstart=0
, but no solution.
As many suggest, I also tried to put context directly in the server.xml (instead of my application context) and referencing it by <ResourceLink /> inside my application context but it didn't work and instead it gave me the following message:
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '   ' for connect URL 'null'
Has anyone succeeded in creating a connection pool with JNDI by using Tomcat 6 or higher ? If yes, could kindly explain about the applied method.
Regards,

Hello again,
Finally I managed to run my application also with Tomcat 6.0.18. There was only two lines that had to be modified
in the context.xml file (the context of my application project and not server's)
Instead of writing
<Context antiJARLocking="true" path="/WebApplication2">
    type="javax.sql.DataSource"
    factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
</Context>we had to write:
<Context antiJARLocking="true" path="/WebApplication2">
    type="oracle.jdbc.pool.OracleDataSource"
    factory="oracle.jdbc.pool.OracleDataSourceFactory"
</Context>- No modification was needed to be done at server level (niether server.xml nor server context.xml)
- I just added the ojdbc6.jar in $CATALINA_HOME/lib (I didn't even need to add it in WEB-INF/lib of my project)
- The servlet used to do the test was the same that I presented in my precedent post.
For those who have encountered my problem and are interested in the format of the web.xml and context.xml
with Tomcat 6.0, you can find them below:
Oracle server: Oracle 11g Enterprise
Tomcat server version: 6.0.18
Oracle driver: ojdbc.jar
IDE: Netbeans 6.5.1
The context.xml file of the web application
<?xml version="1.0" encoding="UTF-8"?>
<Context antiJARLocking="true" path="/WebApplication2">
    <Resource name="jdbc/oracle11g"
              type="oracle.jdbc.pool.OracleDataSource"
              factory="oracle.jdbc.pool.OracleDataSourceFactory"
              url="jdbc:oracle:thin:@localhost:1521:database01"
              driverClassName="oracle.jdbc.OracleDriver"
              userName="scott"
              password="tiger"
              auth="Container"
              maxActive="100"
              maxIdle="30"
              maxWait="10000"
              logAbandoned="true"
              removeAbandoned="true"
              removeAbandonedTimeout="60" />
</Context>The web.xml of my web application
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <resource-ref>
        <description>Oracle Database 11g DataSource</description>
        <res-type>oracle.jdbc.pool.OracleDataSource</res-type>
        <res-auth>Container</res-auth>
        <res-ref-name>jdbc/oracle11g</res-ref-name>
    </resource-ref>
    <servlet>
        <servlet-name>Servlet1</servlet-name>
        <servlet-class>servlets.Servlet1</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>Servlet1</servlet-name>
        <url-pattern>/Servlet1</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>Ok, now I'm happy as the original problem is completely solved
Regards

Create connection in discoverer

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