The SOA infrastructure database is used by SOA Suite products like BPEL PM, BAM, BPM, Human Worklow, B2B and Mediator. A SOA administrator is involved in many different tasks like installation, upgrade, performance tuning and other administrative topics. Another important one is purging - see the posting for this: SOA Suite 11g Purging Guide.

We have implemented a guide to help with thess tasks: SOA 11g Infrastructure Database: Installation, Maintenance and Administration Guide.

An upcoming advisor webcast planned for Wednesday, April 11 2012 at 15:00 UK / 16:00 CET / 07:00 am Pacific / 8:00 am Mountain / 10:00 am Eastern will walk you through the guide and show some of the highligts. Registration for this webcast is available in SOA 11g Database: Guide for Administrators [ID 1422913.1].

The presentation recording can by found here after the webcast.
(https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=ANNOUNCEMENT&id=740964.1)

The schedule for future webcasts can be found here
(https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=ANNOUNCEMENT&id=740966.1)