December 2018
Beginner to intermediate
794 pages
19h 29m
English
book
Microsoft Power BI Complete Reference
by Devin Knight, Brian Knight, Mitchell Pearson, Manuel Quintana
Content preview from Microsoft Power BI Complete Reference
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Cross-filtering direction
Now that you understand the basics of automatic filtering in Power BI, let's take a look at an example of a many-to-many relationship. DimProduct and DimCustomer have a many-to-many relationship. A product can be sold to many customers. For example, bread can be sold to Jessica, Kim, and Tyrone. A customer can purchase many products. Kim could purchase bread, milk, and cheese.
A bridge table can be used to store the relationship between two tables that have a many-to-many relationship, just like tools you have worked with in the past.
The relationship between DimProduct and DimCustomer is stored in the FactInternetSales table. The FactInternetSales table is a large many-to-many bridge table:
Figure 11-Relationship ...
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