December 2017
Beginner to intermediate
500 pages
12h 10m
English
book
Learning Pentaho Data Integration 8 CE - Third Edition
by Dan Keeley, Diethard Steiner, María Carina Roldán, Miguel Gaspar, Pablo Castagnaro, Paula Clemente, Paulo Alexandre de Oliveira Rodrigues Pires
Content preview from Learning Pentaho Data Integration 8 CE - Third Edition
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Loading other kinds of dimensions
In terms of database tables, dimensions may be represented with tables in a one-to-one relationship. This was the case of the dimensions explained so far. Despite being the common situation, this is not always the case.
A one-to-one relationship between a dimension and a dimension table is not required, but may coincidentally exist.
In real situations, we can have database tables that hold information for several dimensions, as well as dimensions that are not stored in any dimension table. In this section, you will learn a bit about these special dimensions.
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