Can a Java Stored Procedure in one database instance open a connection to another database instance?
Yes, using the Thin-server driver. This has been supported since 8.1.6sdk.The only known workaround at this time is to configure the first installation to use DBLINKS when contacting the second installation. This fakes the jdbc drivers into thinking that its still working in the same one instance, and relies on DBLINKS to take care of the details. However, there are rumored to be problems with using DBLINKS on an MTS server installation.