Upgrading WebLogic 10.0 to use ojdbc5.jar

Question

I am considering upgrading to ojdbc5.jar in WebLogic 10.0 to go against Oracle 11g.
1) Is there any reason I should not? Is this supported?
2) Is it ok to stay on ojdbc4.jar if we're not using the latest JDBC apis?
3) If it's ok to upgrade, how do I override the ojdbc4.jar since it's referenced in the weblogic.jar manifest without having to edit the file/jar? Change config.xml to something like:
<class-path>some_path/ojdbc5.jar;some_path/orai18n.jar</class-path>
4) Also, I've been told to include orai18n.jar, does adding it to the class-path in config.xml include this jar? How do I verify the jar is actually being used?
Thanks in advance,
Jim
Edited by: user614591 on Jan 25, 2010 12:37 PM

Answer 1

Joe -
We are facing the following issues: -
Our setup consists of 1 weblogic home with multiple domains, where each application within the domain uses datasource to connect to different databases. JDBC driver for this datasource is being provided by weblogic's server/lib/ojdbc14.jar file.
One of the application within a domain need to upgraded to ojdbc5 driver, and that is where we are facing issue. We added ojdbc5.jar and orai18n.jar to our application specific domain/lib directory and update the domain/setDomainEnv.sh with PRE_CLASSPATH entry pointing to the updated jdbc jar locations within domain. I have not deleted / renamed the ojdbc14.jar file under weblogic server/lib directory, since this driver is used by other applications in different domains. When the server starts I do find that the first classpath entry is for ojdbc5.jar and orai18n.jar it is followed by ojdb14.jar entry. I thought that ojdbc5 classes would take precedence, but it doesn't look like its happening and the system is using ojdbc14 classes.
So is there a way, by which I can, for our domain, not use ojdbc14 jar file without deleting / renaming it from server /lib directory, with the file setup mentioned above?
Best Regards-
Dev