Click OK. Right-click and select Set Aggregation. In the Aggregation dialog, select or clear All columns the same. In the Aggregation tab, select Based on dimensions.

Working with Logical Tables, Joins, and Columns 8-17 over the individual accounts. The Oracle BI Server lets you configure dimension-specific aggregation rules. You can specify one aggregation rule for a given dimension and specify other rules to apply to other dimensions. You need to configure dimensions in the Business Model and Mapping layer to set up dimension-specific aggregation. For more information about setting up aggregate navigation, see Chapter 10 . To specify dimension-specific aggregation rules for a single logical column: 1. In the Business Model and Mapping layer, double-click a logical column. 2. In the Logical Column dialog, click the Aggregation tab.

3. In the Aggregation tab, select Based on dimensions.

4. In the Browse dialog, select a dimension over which you want to aggregate, and then click OK.

5. In the Aggregation tab, from the Formula list, select a rule.

After selecting rules for specified dimensions, set the aggregation rule for any remaining dimensions by using the dimension labeled Other.

6. If you need to create more complex formulas, click the Expression Builder button

to the right of the Formula column to open Expression Builder. 7. If you have multiple dimensions, you can click Up or Down to change the order in which the dimension-specific rules are performed. When calculating the measure, aggregation rules are applied in the order top to bottom established in the dialog.

8. Click OK.

To specify dimension-specific aggregation rules for multiple logical fact columns: 1. In the Business Model and Mapping layer, select multiple logical fact columns.

2. Right-click and select Set Aggregation.

You must select more than one column to see the Set Aggregation menu item. Also note that Set Aggregation does not appear if one or more of the columns you select is a derived column.

3. In the Aggregation dialog, select or clear All columns the same.

This option is selected by default. When selected, you can set aggregation rules that apply to all selected columns. If you clear this option, you can set aggregation rules separately for each selected column.

4. In the Aggregation tab, select Based on dimensions.

5. In the Browse dialog, select a dimension over which you want to perform aggregation, and then click OK. After setting up the rule for a dimension, specify aggregation rules for any other dimensions in the entry labeled Other.

6. Click the Expression Builder button to the right of the Formula column.