Asymmetrical Dimensions in Oracle 9i

We are trying to built a demo application using Oracle 9i components. For some of the dimensions, we need an asymmetrical dimension, meaning a dimension with varying number of levels. I.e. Accounts; some account categories use 3 levels to roll up from the individual GL account level to the financial statement level, while others use 6 levels or more.
I am aware of articles published by R. Kimball on using helper tables to do this in a star schema environment, but I wonder if I could still access this type of data structure using BI beans, etc.
How is this normally handled in the Oracle environment?
Thank you for your response
Cor

If you are defining the hierarchical dimension such that all roll ups start from a common lowest level of detail (presumably, "the individual GL account level"), then this is a "skip-level hierarchy". Support for this will require BI Beans with OLAP 9.2.0.3 or higher.
If different sub-trees of the hierarchical dimension roll up from different levels of detail, then this is a "ragged hierarchy". There is no plan to support this in BI Beans at the moment.

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Asymmetrical Dimensions in Oracle 9i

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