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    This is Santosh Kumar Gidadmani, a Business Intelligence and Data Warehouse Enthusiast passionate about blogging articles in the BI, Data warehousing, space. This is my attempt to share my experience and knowledge on Oracle BI & Data Warehousing Subjects.

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Archive for the ‘Presentation Layer Objects’ Category

Presentation Layer Objects

Posted by Santosh Kumar Gidadmani on February 22, 2011

Presentation Layer

– The Presentation layer is built after the Physical layer and the Business Model and Mapping layer.
– The Presentation layer provides a means to further simplify or customize the Business Model and Mapping layer for end users.
– You can create Presentation layer objects by dragging objects from the Business Model and Mapping layer.

Presentation catalogs
– Presentation catalogs allow you to show different views of a business model to different sets of users.
– Presentation catalogs have to be populated with contents from a single business model.
– Multiple presentation catalogs can refer to the same business model.
– Presentation Catalogs can be created manually or by dragging the required from the BMM layer to presentation layer.
– Changes to the Presentation layer do not impact corresponding objects in the BMM layer.
– Presentation catalogs in the Presentation layer are seen as subject areas by Oracle BI Answers users.
Presentation Table
– 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.
– Presentation Tables can be created manually or by dragging the required from the BMM layer to presentation layer.
– Presentation tables contain presentation columns. Use the Columns tab in the Presentation Table properties dialog box to reorder, sort, or delete Presentation layer columns.
– To create a nested presentation table, prefix the name of the presentation folder to be nested with a hyphen and a space and place it after the folder in which it nests. When Answers displays the folder, it omits the hyphen and space from the folder name. It is possible to nest multiple folders under a single folder, however, only one level of nesting is possible.
Presentation Columns
– Presentation columns define the columns used to build queries in the Oracle BI user interface.
– Presentation columns can be created manually or by dragging the required from the BMM layer to presentation layer.
Presentation Alias
– An Alias tab appears on the Presentation Catalog, Presentation Table, and Presentation Column property dialog boxes. If you modify a Presentation layer object, this tab keeps track of any prior names.
– Aliases are used to maintain compatibility with previously written queries after an object has been modified.

– Santosh

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