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You're reading from  Expert Data Modeling with Power BI - Second Edition

Product typeBook
Published inApr 2023
PublisherPackt
ISBN-139781803246246
Edition2nd Edition
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Author (1)
Soheil Bakhshi
Soheil Bakhshi
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Soheil Bakhshi

Soheil Bakhshi is the founder of Data Vizioner and is a sought after BI consultant. Working in data and analytics for more than 20 years, Soheil's experience lies in Microsoft BI, Data Warehousing, and Power BI platform. He possesses MSCE, MCSA certifications and is a Microsoft MVP (Most Valuable Professional). He has a passion for sharing knowledge via his website and speaking at conferences and Power BI community events locally and globally. In following his desire for simplicity and efficiency, he is behind Power BI community tools and commercial products such as Power BI Exporter and Power BI Documenter.
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Avoiding bidirectional relationships

One of the most misunderstood and somehow misused Power BI features in data modeling is setting the Cross filter direction to Both. This is widely known as a bidirectional relationship. There is nothing wrong with setting a relationship to bidirectional if we know what we are doing and are conscious of its effects on the data model. We have seen Power BI developers who have many bidirectional relationships in their model and consequently end up with many issues, such as getting unexpected results in their DAX calculations or being unable to create a new relationship due to ambiguity.

The reason that overusing bidirectional relationships increases the risk of having an ambiguous model is filter propagation. In Chapter 8, Data Modeling Components, we covered the concept of filter propagation and bidirectional relationships. We looked at a scenario where the developer needed to have two slicers on a report page, one for the product category and...

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Expert Data Modeling with Power BI - Second Edition
Published in: Apr 2023Publisher: PacktISBN-13: 9781803246246

Author (1)

author image
Soheil Bakhshi

Soheil Bakhshi is the founder of Data Vizioner and is a sought after BI consultant. Working in data and analytics for more than 20 years, Soheil's experience lies in Microsoft BI, Data Warehousing, and Power BI platform. He possesses MSCE, MCSA certifications and is a Microsoft MVP (Most Valuable Professional). He has a passion for sharing knowledge via his website and speaking at conferences and Power BI community events locally and globally. In following his desire for simplicity and efficiency, he is behind Power BI community tools and commercial products such as Power BI Exporter and Power BI Documenter.
Read more about Soheil Bakhshi