OBIEE Cache Management
When working on systems with frequent data loads, the OBIEE cache can often prevent end users from seeing the latest data. Sometimes it’s appropriate to disable caching on particular tables or reports. OBIEE has two types of caching mechanisms - Presentation Services caching and individual table caching.
The following link provides a few very good posts from John Minkjan’s blog on how the OBIEE cache works, configuration settings, and how to purge the cache(s).