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Different types of many-to-many relationships in DAX

The composite models in Power BI introduced a new type of relationship cardinality called many-to-many. Nevertheless, despite their name, they are not many-to-many relationships: they are relationships between tables generated at different granularity.
In this session, we clarify the purpose of the relationships with many-to-many cardinality, highlighting the significant difference with canonical many-to-many relationships. In the meantime, we show how and when to use different kinds of many-to-many relationships with several practical examples.


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