October 2012
Intermediate to advanced
316 pages
8h 47m
English
book
IBM Cognos Dynamic Cubes
by Dmitriy Beryoza, Shilpa Bhimavarapu, Alan Blake, David Cushing, Vlaunir Da Silva, Mario Daigle, Avery Hagleitner, Ian Henderson, Beth Jubera, Skyla Loomis, Chris McPherson, Steven Rogers, Carlos Ruiz, Christopher Yao
Content preview from IBM Cognos Dynamic Cubes
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Chapter 4. Modeling dynamic cubes 79
4.5.1 Using relative time
Cognos Dynamic Cubes generate built-in relative time members:
Current period
Prior period
Period to date
Prior period to date
Period to date change
Period to date growth
If you do not set the current period value for a level, the last member in the level will be
deemed to be the current period.
Instructions for creating a time dimension are in 4.14, “Creating a time dimension” on
page 112.
4.6 Slowly changing dimensions
Slowly changing dimensions (SCD) are a type of dimension in which the data describing the
entities in a dimension will change over time. This section describes the slowly changing
dimension types and use cases that Dynamic Cubes supports.
4.6.1 Modeling slowl
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