| http://www.w3.org/ns/prov#value | - Sum({$<TrxType = {'Sales'}>} Value) to get the sales amount or Sum({$<TrxType = {'Warehouse'}>} Quantity) to get the stock quantity). in this way i can apply a star schema design where i have a fact table (with the different types of transactions) and dimensional tables around (like the calendar, articles, clients, etc..).the date field of the master calendar will be linked to the date field of th
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