Click OK. To set permissions for this presentation table, click Permissions. See Select Custom display name or Custom description to dynamically display a

11-6 Metadata Repository Builders Guide for Oracle Business Intelligence Enterprise Edition

7. Optionally, you can set an Implicit Fact Column. This column is added to a query

when it contains columns from two or more dimension tables and no measures. The column is not visible in the results. It is used to specify a default join path between dimension tables when there are several possible alternatives or contexts. 8. Optionally, type a description. This description appears in a mouse-over tooltip for the subject area in Oracle BI Answers. 9. In the Presentation Tables tab, you can add, remove, edit, or reorder the presentation tables for this subject area. 10. Use the Aliases tab to specify or delete aliases for this subject area. See Creating Aliases Synonyms for Presentation Layer Objects for more information about aliases.

11. Click OK.

Working with Presentation Tables and Columns Presentation tables and presentation columns appear as folders and columns in Oracle BI Answers. You can customize presentation tables and presentation columns to help users craft queries based on their business needs. This section contains the following topics: ■ Creating and Managing Presentation Tables ■ Creating and Managing Presentation Columns Creating and Managing Presentation Tables You can use presentation tables to organize columns into categories that make sense to the user community. A presentation table can contain columns from one or more logical tables. The names and object properties of the presentation tables are independent of the logical table properties. Typically, presentation tables are created automatically by dragging and dropping logical tables from the logical layer. To edit the properties of a presentation table: 1. In the Presentation layer, double-click a presentation table. The Presentation Table dialog appears. 2. In the General tab, you can change the name for the presentation table. Note that aliases are created automatically whenever presentation objects are renamed, so that any queries using the original name do not break. Also, a presentation table cannot have the same name as its parent subject area. For example, you cannot have a subject area called Customer that has a Customer table within it.

3. To set permissions for this presentation table, click Permissions. See

Setting Permissions for Presentation Layer Objects for more information.

4. Select Custom display name or Custom description to dynamically display a

custom name or custom description based on a session variable, typically for localization purposes. See Localizing Oracle Business Intelligence in Oracle Fusion Middleware System Administrators Guide for Oracle Business Intelligence Enterprise Edition for more information about localization. Creating and Maintaining the Presentation Layer 11-7 5. In the Columns tab, you can add, remove, edit, or reorder the presentation columns for this presentation table. 6. In the Hierarchies tab, you can add, remove, edit, or reorder the presentation hierarchies for this presentation table. 7. Use the Aliases tab to specify or delete aliases for this presentation table. See Creating Aliases Synonyms for Presentation Layer Objects for more information about aliases.

8. Click OK.