"No DataSource found at jdbc/hrDS

I found this problem on AS 9.03 when I tried tutorial from "Oracle by Example Series: Oracle9iAS > Deploy J2EE Applications and Web Services". Also I did see several posts on this subject but seems that they are rather useless for beginers like me. So, I would appreciate if someone can explain how do debug this.
Steps I did"
- installed Oracle AS 9.03 only J2EE component
- Run Enterprise Manager and created the data source EXACTLY according to the tutorial. Then I tried to deploy provided application. The error occured.
Once again I would REALLY appreciate any help here...
Rade

i get the following error when i try to deploy the
sample HR J2EE app provided by Oracle.
Deployment failed: Nested exception
Resolution:
Base Exception:
java.rmi.RemoteException
deploy failed!: ; nested exception is:
oracle.oc4j.admin.internal.DeployerException: Error
initializing ejb-module; Exception No DataSource
found at jdbc/hrDS. deploy failed!: ; nested
exception is:
oracle.oc4j.admin.internal.DeployerException: Error
initializing ejb-module; Exception No DataSource
found at jdbc/hrDS
any kind of suggestion or help is apprceiated.
I've Oracle InfraStructure and App Server installed.
I also have J2SE 1.4.2 installed.Hi Vithal -- this error message indicates that the application requires the use of a DataSource, with the name of jdbc/hrDS -- and it can't find it.
So as a first call of action, you should create a datasource for the application to use. A datasource basically defines a connection to a database that an application can use. A datasource has a name by which it is identified, and also other values that define which database to connect to, what username to use, etc.
So use the Enterprise Manager console on your application server instance and create a datasource called jdbc/hrDS.
I can't remember the details of the app you are using, but perhaps have a re-read of the install/use instructions. Chances are that the database schema to which you point the jdbc/hrDS datasource at may require the pre-creation of some tables and population of them with data which the HRApp then uses.
cheers
-steve-

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Hi Michael --
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Hello,
I've noticed some strange behaviour when deploying an ADF application (11g, latest release) to a WLS (integrated or stand-alone), when using JDBC DataSource as a connection type for the application module.
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Arun and Krithika,
Thanks for your replies. I have already done what both of you suggested:
Chris Schryvers wrote:
I then uncheck "Auto Generate and Synchronize weblogic-jdbc.xml Descriptors during deployment" in the Application Properties > Deployment tab.I can get it to work, both for deployment on the internal WLS as on a stand-alone WLS.
My only question is: why does a property at development time (the empty password of the JDev connection) influence the runtime behaviour (the JDBC DataSource not being found after deployment).
Ofcourse, setting the password for the connection in JDev "solves" the problem. But I want to avoid that everyone who uses the reusable component needs to fill in the password for its database connection. In my opinion, that's the whole point of using a JDBC datasource instead of a JDBC URL: the reusable component just states that there needs to be a jdbc/MyConnectionDS on the server and it can be used as is. Wihtout any modifications at development time.
What's more:
Suppose I import the reusable JAR and its connection is added to JDev, without password.
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*) Entering the correct password: DS found, web.xml adjusted at deploy time.
*) Entering an incorrect password: DS found, web.xml adjusted at deploy time.
It even works when I enter an incorrect password, which proves that the JDBC DataSource on the server is used, instead of the JDev connection. Then why is the web.xml not adjusted when the password remains empty?
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HI SAP Guru's
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cruncher [42]%
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import java.math.*;
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stmt.close();
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Supplementary question:
Hi,
We are running a small Java application on a Sun server which acts as a thin client connecting to an Oracle 8i server running on a different server.The Oracle version is 8.1.6
Will the 'classes12.zip' for 8.1.7 work with
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Hi:
I have Oracle AS 10g (9.0.4) and Oracle 9i database running on a windows 2000 professional box.
I am trying to deploy the otn sample "hrapp" on the app server, but deployment fails with the following error (see below). I did define the datasource as suggested by the doc. Am I missing anything? Seems that, the app server is unable to resolve datasource in the JNDI.
Did anybody come across this kind of issue? Is there anykind of JNDI browser available? Any ideas/pointers are welcome..
Thanks
--bharat
ERROR LOG
Deployment failed: Nested exception
Root Cause: deploy failed!: ; nested exception is:
oracle.oc4j.admin.internal.DeployerException: Error initializing ejb-module; Exception No DataSource found at jdbc/hrDS
Resolution: . deploy failed!: ; nested exception is:
oracle.oc4j.admin.internal.DeployerException: Error initializing ejb-module; Exception No DataSource found at jdbc/hrDS

Hi,
I choose to install the database first but it doesn't really matter.
I've done it both ways without any problems.
Regards,
Lia

HR Sample App

I am trying to run the OTN sample app that runs with the HR schema.
As with my small entity beans, I am getting an error doing a context lookup when trying to run the application.
Here is the error message, please help:
javax.naming.NamingException: Lookup error: java.net.ConnectException: Connection refused: connect; nested exception is:
     java.net.ConnectException: Connection refused: connect
     java.lang.Object com.evermind.server.rmi.RMIContext.lookup(java.lang.String)
          RMIContext.java:134
     java.lang.Object javax.naming.InitialContext.lookup(java.lang.String)
          InitialContext.java:350
     void Samplehr.hrAppClient.main(java.lang.String[])
          hrAppClient.java:18
Thank you.

In addition, I also have this error msg:
(No previous deployment found)... Error compiling C:\program files\JDeveloper\jdev\mywork\j2ee13sample\bustier\classes: No DataSource found at jdbc/hrDS
but I did create an hrDS Database connection in Jdeveloper that exists in the data-sources.xml file.
Please advise.

"No DataSource found at jdbc/hrDS

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