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In the ongoing Data Vault Friday series, our CEO, Michael Olschimke, delves into two insightful questions raised by our audience.
“Should the Satellite hang from the Master Hub or Link? Our preference was to hang from the Hub as it kept the model simple and also to keep the CDC straightforward. Another reason we are leaning toward this is, that the descriptive columns belong to the Master Hub so it would be ideal to keep it as a satellite under the hub.”
“Now with the link, if there is any change in the relationship between the Master Hub Column to the Reference Hub Column in the link we would like to capture it. And it is via effectivity satellites. If we have One Master Hub column and a lot of the Reference Hub columns do we end up in a lot of Effectivity Satellites? Or just one effectivity satellite as the driving key is the Master Hub column?”
Michael provides insights into these considerations, offering guidance on the optimal structuring of Satellites and managing Effectivity in Link relationships.
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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