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Assume that we have a data cube as follows:

DairyFarms = { <Name, Time , Product> , <Sales> , <Sum> }
Name = {Farm1, Farm2, Farm3, Farm4}
Time = {Jan, Feb, Mar , ..... , Dec}
Product = {Milk, Butter, Cheese, Yogurt}

Suppose I want to retrieve the sales of Cheese across all the farms during January. Which of the following two queries is correct? 

i) DairyFarms[Name*][Jan][Cheese]
ii) DairyFarms[][Jan][Cheese]

Do both of them mean the same or is there any difference between them w.r.t. correctness and/or efficiency?

Aditya Naidu
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  • Is this an exa, question? I'm not familiar with the syntax you have posted. – Nick.Mc Aug 18 '16 at 09:55
  • What kind of software and/or architecture does this refer to? What is 'w.r.t'? – tobi6 Aug 18 '16 at 10:05
  • w.r.t. = "with respect to". Of course when writing a question the poster should avoid confusing acronyms. It's like writing plz instead of please. If you can't be bothered writing the whole word you clearly don't mean it! – Nick.Mc Aug 19 '16 at 01:11

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