I posted a while ago on getting ZLM 6.6.1 to work with Oracle. Just some additional clarification in the docs.
Oracle database support is limited to the following configuration:
* An Oracle 9i database running on any platform supported by the Oracle database.
* A TCP listener running on your Oracle 9i database, which can be contacted by your client using onames or tnsnames.
* ZENworks Linux Management installed on Red Hat Enterprise Linux 3 Advanced Server.
* The Oracle 9i client libraries installed on your ZENworks Linux Management server. The recommended Oracle client is Oracle 9i client, Release 2.
We recommend working with your Oracle database administrator for database installation, management, and other Oracle-related issues.
Oracle 10g support on SLES will be part of ZLM 7 SP1.