Forum Discussion
Modelling question when having two timestamps in a fact table
- 1 year ago
I would also use your approach and multiply the rows in the fact table.
You might not even increase the overall size of the semantic model. Cardinality (the number of distinct values) is the most important factor for model size. [FromTimestamp] and [ToTimestamp] have a high cardinality. [StartDate], [Hour] and [Minutes Worked] have a much lower cardinality, so you might even decrease the overall size of your semantic model. - 1 year ago
Thanks for the reply
I would also use your approach and multiply the rows in the fact table.
You might not even increase the overall size of the semantic model. Cardinality (the number of distinct values) is the most important factor for model size. [FromTimestamp] and [ToTimestamp] have a high cardinality. [StartDate], [Hour] and [Minutes Worked] have a much lower cardinality, so you might even decrease the overall size of your semantic model.
Thanks for the reply