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IBM Cognos TM1 Developer's Certification Guide by James D. Miller

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Chapter 2. Dimensions and Cubes

In this chapter, we will discuss the most basic Cognos TM1 objects:

  • Cubes
  • Dimensions

We will identify and explain each of these objects—focusing on the information covered in the current IBM Cognos TM1 Developer (Test COG-310) certification exam.

The current certification exam assigns a weightage of 16 percent to this topic.

Introduction to cubes and dimensions

What tables are to relational databases in the way cubes are to TM1. Almost all data stored in TM1 is stored in and accessed from cubes.

There are two ways to create cubes:

  • Empty cube: You can create an empty cube by selecting (at least) two dimensions from the list of existing dimensions in the Creating Cube window to create a new cube with no data.
  • External data ...

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