In a Star Schema the dimensional tables does not need to be normalized.

A Snowflake Schema is a modified Star Schema that has normalized the dimensional tables.

Example (see step 4 and 5 below): Getting Top-N Sales Reps for Year and Year-1

1. Under the “Business Model and Mapping” Layer, right click the “F1 Revenue” and select “New Object” - > “Logical Column…”

2. In the “Logical Column” Window give for Name: Year Ago Revenue as seen below:

3. Goto the “Column Source” Tab and select “Derived from existing columns using an expression” radio button then click on the “Edit Expression” icon.

4. Enter the following expression in the “Expression Builder” Window by selecting “Functions” in the “Category:” list, “Time Series Functions” in the “Functions:” list then “Ago” “Time Series Functions:” section.

5. Select the “ < < Measure > > ” in the “Ago( )” function, then select “Logical Tables” in the “Category:” list, “F1 Revenue” in the “Logical Tables:” list, then double click the “Revenue” in the “Columns:” list.

Etc.

B: The Aggregate Persistence Wizard automates the creation and initial population of aggregates, persists them in a back-end database and configures the BI Server metadata layer so that they’re used when appropriate.

C: The wizard then shows me a preview of the script it’s going to generate, and asks me if I want to create any more summaries. Here’s how the preview script looks – note that it’s not SQL, it’s a script language that the BI Server understands and uses as the specification for an aggregation job, which it then turns into separate CREATE TABLE, INSERT … SELECT and so on SQL statements, “optimized” for the particular back-end database platform.

Script example:

" ag_Items "

for " Seminar - Complete " . " Items " ( " Quantity " )

at levels ( " Seminar - Complete " . " Customerdim " . " State " , " Seminar - Complete " . " Productdim " . " Category " , " Seminar - Complete " . " Timedim " . " Year " )

using connection pool " custdw " . " CUSTDW_Pool "

in " custdw " .. " CUSTDW " ;

BI EE uses the ADM driver to extract the data from HFM.

Note: HFM (Hyperion Financial Management)

Example:

I EE connects to HFM through JavaHost. So, the setup for configuring the connectivity is to basically make the EPM environment variables available for access to BI EE. Before making the changes, there are a couple of things to be aware of

1. Ensure that DCOM is enabled on the BI Server machine. This is needed for HFM client to work/connect properly with HFM Server.

2. Ensure that HFM Client is installed.

The above assumes EPM 11.1.2.x version. If you are on Hyperion 9.3.3, then you need to have the ADM drivers installed manually. All of this is documented clearly. So, rather than re-iterating that i will just point to the link here. Ensure that you follow all the steps mentioned in the docs else you will have issues in the connectivity. Once all the pre-requisite steps are done, we start off with the metadata import process.

The principal connection to an OBI Server inside the Oracle BI System is made through an Odbc Connection.

OBI Server can handle multiple repository but you can connect to only one at the same time by DSN Odbc Connection. Therefore, you must set up an ODBC connection for each repository.

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In an Ibor or Agent, in the ' Destinations ' tab you can set the ' Specific Devices ' However, it is a Device or Delivery Profile the one used for alerts, see this OBIEE guide:

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User ' s Guide

http://download.oracle.com/docs/cd/E21764_01/bi.1111/e10544/toc.htm

http://download.oracle.com/docs/cd/E21764_01/bi.1111/e10544.pdf

page 218

What Are Devices and Delivery Profiles?

Devices and delivery profiles control how you will be reached when an alert is

generated by an agent and which devices receive the content:

¦ Device — A device is the medium used to deliver content to you. The content of

an agent can be delivered to a range of devices as an e-mail or SMS message.

¦ Delivery profile — A delivery profile specifies which devices to use to deliver

content to you, based on the priority of the content. You can define several

delivery profiles to meet your needs, and switch

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Download and installation of the client

The client install executable is available for download from the More Products menu in Oracle BI Interactive Dashboards and Oracle BI Answers.

See picture below.

Security Realms are an Oracle Platform Security Services concept and bring together sets of users, groups, providers and so on for a WebLogic domain.