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csn13's avatar
csn13
Frequent Visitor
1 year ago
Solved

Modelling question when having two timestamps in a fact table

Im working on amodell regarding working ours.   I have a fact table where each row represent a person, working on one activity between two timestamp. So the fact table has the columns User, Activit...
  • AMeyersen's avatar
    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.

  • csn13's avatar
    csn13
    1 year ago

    Thanks for the reply