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Archive for February, 2012
I have a new project where we need to keep history on dimensions using slowly changing dimensions and keep history of the fact table. So my fact table would look something like this.
The problem being with this model is if you have to get the latest sum of commission you would have to get only the last record. You also cannot tell if the employee did multiple sales…
More to come
I found this very useful in situations where we have for example a fact sales amount and want to group sales into small, medium and large. I have used range dimensions with range, min, max. I then use a table like below to look up the range by using a between SQL statement
Here is a much easier way