Click the Add button again and select the associated dimension table that is not Drag objects from the Physical layer to the Business Model and Mapping layer.

Working with Logical Tables, Joins, and Columns 8-25

4. Click the Add button in the upper right corner of the Logical Table Source dialog.

Then, select the bridge table from the Name list Assignment in our example and then click Select.

5. Click the Add button again and select the associated dimension table that is not

joined to the fact table Employee in our example and then click Select. 6. Click OK in the Logical Table Source diaog. Figure 8–8 shows the Logical Table Source dialog for the bridge table source. Figure 8–8 Logical Table Source Dialog for Bridge Table Source 7. Drag columns from the dimension table that is not joined to the fact table Employees in our example from the Physical layer to the logical table source that you just created. You can now create dimensions based on your logical tables, including the logical table with the bridge table source. Modeling the Associated Dimension Tables in Separate Dimensions As an alternative to modeling the two dimension tables associated with a bridge table in a single dimension, you can choose to model them in separate dimensions. To do this, create a logical join between the fact table and the dimension table that is not physically joined to the fact table, and then modify the logical table source for that same dimension table to add the other table mappings. To model the dimension tables associated with a bridge table in separate dimensions:

1. Drag objects from the Physical layer to the Business Model and Mapping layer.

Because you want to model the dimension tables in separate dimensions, drag both of the dimension tables associated with the bridge table. You do not need to drag and drop the bridge table object. 8-26 Metadata Repository Builders Guide for Oracle Business Intelligence Enterprise Edition 2. In the Business Model and Mapping layer, select the fact table and the two dimension tables that are associated with the bridge table Facts, Employee, and Jobs in our example. Then, right-click the objects and select Business Model Diagram , and then choose Selected Tables Only. 3. With the Business Model Diagram displayed, click New Join on the toolbar. Then, select the fact table, and then select the dimension table not currently joined to the fact table.

4. Click OK in the Logical Join dialog.