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Define a Fact Relationship and Fact Relationship Properties

When you define a new cube dimension or a new measure group, Analysis Services will try to detect if a fact dimension relationship exists and then set the dimension usage setting to Fact. You can view or edit a fact dimension relationship on the Dimension Usage tab of Cube Designer. The fact relationship between a dimension and a measure group has the following constraints:

  • A cube dimension can have only one fact relationship to a particular measure group.

  • A cube dimension can have separate fact relationships to multiple measure groups.

  • The granularity attribute for the relationship must be the key attribute (such as Transaction Number) for the dimension. This creates a one-to-one relationship between the dimension and facts in the fact table.

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