SSAS

  • Hi,

    This is my question can anyone help me to resolve this:-)

    1000 rows in the fact table

    5 rows in the Geo dimension table

    50 rows in the product dimension table

    100 rows in the calendar dimension tables

    2000 rows in the customer dimension table

    When I join fact and geo table what will be the maximum rows

    When I join fact and customer table what will be the maximum rows I get

  • What type of join you are doing? It would probably also depend on the attribute(s) you are joining on and their values.

  • Please check with following possibilities, I have consider fact and geo tables

    1) Cross Join -- It will give you cartesian product of two tables = 1000*5=5000 rows

    2) Inner join --It will give you only matches from both the tables

    a) = 5 -- if all five matches

    b) < 5 -- if no duplicates

    c) >= 5 -- if there are duplicates

    d) 0 -- No matches

    3) Left join -- It will give you all matches from left table even if there are no matches in the right table

    a) = 1000 -- all matches

    b) >= 1000 -- with duplicates

    4) Full outer join -- It will give you matches as well as nonmatches from both the tables

    a) >= 1000

  • hi,

    Thanks for your reply..

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