Do i need jDriver?

[phani]

Hi,    I installed WL5.1 and Oracle 8.1.6 client on Win 95.    I deployed the entity bean (CMP) but it is throwing execption and saying 0 ejbs deployed.       mon Jun 03 11:54:11 GMT+05:30 2002:<E> <EJB> Could not deploy: 'D:/work/ejb/cmp/cmp.jar' Possible reasons include: 1. The bean or an interface class has been modified but    the deployment descriptor has not been updated 2. The database mappings in the deployment descriptor do not    match the database definition 3. The jar file is not a valid jar file 4. The jar file does not contain a valid bean weblogic.ejb.common.DeploymentException: Could not setup the persistence store for this bean.; nested exception is:  weblogic.cmp.rdbms.ConnectionPoolException: Could not open connection pool named 'oraclePool'. Cannot deploy CMP Entity Bean. weblogic.cmp.rdbms.ConnectionPoolException: Could not open connection pool named 'oraclePool'. Cannot deploy CMP Entity Bean.  at weblogic.cmp.rdbms.PSRdbms_Base.columnIsInTable(PSRdbms_Base.java:260)  at weblogic.cmp.rdbms.PSRdbms_Base.columnsAreInTable(PSRdbms_Base.java, Compiled Code)  at weblogic.cmp.rdbms.PSRdbms_Base.baseSetup(PSRdbms_Base.java:112)  at EmployeePSWebLogic_CMP_RDBMS.setup(EmployeePSWebLogic_CMP_RDBMS.java:116)  at EmployeePSWebLogic_CMP_RDBMS.setup(EmployeePSWebLogic_CMP_RDBMS.java:103)  at weblogic.ejb.internal.StatefulEJBHome.initializeEntityEjbStore(StatefulEJBHome.java:456)  at weblogic.ejb.internal.StatefulEJBHome.setup(StatefulEJBHome.java:290)  at weblogic.ejb.internal.EJBHomeImpl.setup(EJBHomeImpl.java:600)  at weblogic.ejb.internal.EJBDeploymentImpl.setupBeanHome(EJBDeploymentImpl.java:576)  at weblogic.ejb.internal.EJBDeploymentImpl.deployBeans(EJBDeploymentImpl.java, Compiled Code)  at weblogic.ejb.internal.EJBDeploymentImpl.deploy(EJBDeploymentImpl.java:335)  at weblogic.ejb.internal.EJBJarDeployment.deploy(EJBJarDeployment.java:231)  at weblogic.ejb.internal.EJBManagerImpl.deploy(EJBManagerImpl.java, Compiled Code)  at weblogic.ejb.internal.EJBManagerImpl.deployNew(EJBManagerImpl.java:352)  at weblogic.ejb.internal.EJBManagerImpl.deploy(EJBManagerImpl.java:319)  at weblogic.ejb.internal.EJBManagerImpl.deployBeans(EJBManagerImpl.java, Compiled Code)  at weblogic.ejb.internal.EJBManagerImpl.<init>(EJBManagerImpl.java:242)  at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java, Compiled Code)  at weblogic.t3.srvr.T3Srvr.main(T3Srvr.java:825)  at java.lang.reflect.Method.invoke(Native Method)  at weblogic.Server.startServerDynamically(Server.java:99)  at weblogic.Server.main(Server.java:65)  at weblogic.Server.main(Server.java:55)  at weblogic.NTServiceHelper.run(NTServiceHelper.java:19)  at java.lang.Thread.run(Thread.java:479)   Sat Jun 03 11:54:11 GMT+05:30 2000:<I> <EJB> 0 EJB jar files loaded, containing 0 EJBs Sat Jun 03 11:54:11 GMT+05:30 2000:<I> <EJB> 0 deployed, 0 failed to deploy. Sat Jun 03 11:54:11 GMT+05:30 2000:<I> <ZAC> ZAC ACLs initialized Sat Jun 03 11:54:11 GMT+05:30 2000:<I> <ZAC> ZAC packages stored in local directory exports Sat Jun 03 11:54:11 GMT+05:30 2000:<I> <SSLListenThread> Listening on port: 7002 Sat Jun 03 11:54:11 GMT+05:30 2000:<I> <ListenThread> Listening on port: 7001 Sat Jun 03 11:54:11 GMT+05:30 2000:<A> <Posix Performance Pack> Could not initialize POSIX Performance Pack. Sat Jun 03 11:54:11 GMT+05:30 2000:<E> <Performance Pack> Unable to load performance pack, using Java I/O. Sat Jun 03 11:54:12 GMT+05:30 2000:<I> <WebLogicServer> WebLogic Server started   How to connect to Oracle 8i? do i need a jDriver for that?    Can any one explain how to connect Oracle8i DB. Any doc available.... url...plz   Thanks in advance. phani