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DB2 Cube Views: A Primer
book

DB2 Cube Views: A Primer

by Corinne Baragoin, Geetha Balasubramaniam, Bhuvaneshwari Chandrasekharan, Landon DelSordo, Jan B. Lillelund, Julie Maw, Annie Neroda, Paulo Pereira, Jo A. Ramos
September 2003
Beginner to intermediate content levelBeginner to intermediate
754 pages
18h 9m
English
IBM Redbooks
Content preview from DB2 Cube Views: A Primer
Chapter 3. Building a cube model in DB2 67
3.1.3 Star and snowflakes characteristics
Whatever the layout is, here are the most important characteristics for a star or
snowflake design:
򐂰 A large fact table that can be in the order of millions of data rows. It contains
the atomic or lowest level of detail, which may be a sales transaction, a phone
call, a reservation, a customer service interaction – whatever represents the
most granular fact of business operation which is meaningful for analysis.
򐂰 Small dimension tables containing a finite number of descriptions and detail
information for codes stored in the fact table.
򐂰 Use of primary and foreign keys
򐂰 Measures in the fact table
򐂰 Fact table with multiple joins connecting to other tables
In ...
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Publisher Resources

ISBN: 0738499730Purchase book