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IBM Cognos 10 Framework Manager

You're reading from   IBM Cognos 10 Framework Manager Full of practical instructions and expert know-how, this book continues where the official manual ends, taking you from the basics into the more advanced features of IBM Cognos Framework Manager in clear, progressive steps.

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Product type Paperback
Published in May 2013
Publisher Packt
ISBN-13 9781849685764
Length 186 pages
Edition 1st Edition
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Author (1):
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Terence Phillip Curran Terence Phillip Curran
Author Profile Icon Terence Phillip Curran
Terence Phillip Curran
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Table of Contents (19) Chapters Close

Chapter 4. Modeling Relational Data

After importing the metadata from your relational data source, you must ensure that it meets the reporting requirements of your users. This chapter will cover the modeling of the relationships between the data tables.

The topics covered in this chapter include:

  • Dimension and fact tables

  • Cardinality

  • Determinants

  • Role playing dimensions

  • Loop joins

  • Reflexive and recursive joins

By the end of this chapter, you will have modeled the relationships between the tables in an imported relational data source.

During the import process Framework Manager can automatically create the relationships between tables for you. In this situation it is important to review the created relationships to ensure that they give the correct results for use by the report authors.

Most modelers will choose not to allow the import process to create the relationships between tables. As a result, the modeler must create the relationships themselves.

In creating relationships, Framework Manager uses...

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