Because GO Data Warehouse contains columns for all six dimensions, its data
source scope covers all the dimensions in the model.
Control When the Source Data Is Read
In models with multiple data sources, you can control when a data source is read.
For example, a data source can be read during category generation, during cube
creation, or both. You can use this capability to avoid unnecessary processing,
resulting in a more efficient model design.
Here are some typical scenarios:
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IBM Cognos Transformer Version 10.1.1: User Guide
Summary of Contents for Cognos
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