1. Page 37 Figure 2.3, with attributes excluded
Case Study Schema
Date
Product
Sales facts
Store
Promotion
Page 37 Figure 2.3, with attributes excluded
© Ron McFadyen

2. Case Study Schema Date Product Sales facts Store Promotion
Sales Transaction
Note: Sales transaction belongs in the schema – it is a degenerate dimension
© Ron McFadyen

3. Case Study Schema in Peter Chen Notation1 1
Product
Date n n
Sales facts n n n
Store
Promotion 1 1 1
Sales Transaction
A sales fact must participate in each of the relationships – mandatory participation
Each relationship is binary, and between a dimension and the fact table
© Ron McFadyen