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In our ongoing Data Vault Friday series, our CEO Michael Olschimke addresses an interesting question raised by a member of our audience.

“We wonder if a ghost record in a satellite should have NULL values in the descriptive fields or not. What is the advantage of non-NULL values?”

In this insightful video, Michael explores the nuances of handling ghost records in satellites, specifically focusing on whether descriptive fields should contain NULL values or default values. He provides a comprehensive analysis of the pros and cons associated with each solution, shedding light on the advantages and considerations that come with choosing either non-NULL values or default values for descriptive data in ghost records.

For those grappling with the challenges of managing ghost records within the Data Vault framework, this video offers valuable insights and considerations to inform decision-making.

Meet the Speaker

Michael Olschimke

Michael has more than 15 years of experience in Information Technology. During the last eight years he has specialized in Business Intelligence topics such as OLAP, Dimensional Modelling, and Data Mining. Challenge him with your questions!

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To support the creation of Visual Data Vault drawings in Microsoft Visio, a stencil is implemented that can be used to draw Data Vault models. The stencil is available at www.visualdatavault.com.

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