Multiple choice technology packaged enterprise solutions

Complex joins can only be specified in BMM layer.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Complex joins in Siebel Analytics can be specified in multiple layers, including the Physical layer and the BMM (Business Model and Mapping) layer. While the BMM layer is commonly used for complex business logic relationships, it's not the only place. The Physical layer can also define complex join conditions based on database relationships. The 'only' in the statement makes it false.

AI explanation

In Oracle BI (OBIEE) repository architecture, physical joins -- including complex/custom join conditions with non-equality operators -- are defined in the Physical layer, where they describe how the underlying database tables actually relate. The Business Model and Mapping (BMM) layer defines logical joins between logical tables/fact-dimension relationships, which are simpler and derived from the physical joins, not a place for arbitrary complex join expressions. So the statement that complex joins can only be specified in the BMM layer is false -- they belong in the Physical layer.

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