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  1. #1
    Join Date
    Mar 2011
    Posts
    2

    Functional dependency

    Hi ,

    I have some attributes of car , Regd_no, Make, Model, Year_of_production,First_registration_data,Fuel_ty pe,Capacity,Purchase_price and Original price.

    i need to find the functional dependencies. I've tried some and would like to know your comments whether i'm correct.

    Regd_no -> Year_of_production, First_registration_data, Purchase_price, Original_price, Fuel_type,Capacity,Make

    Make -> Model

    thanks.

  2. #2
    Join Date
    Sep 2002
    Location
    UK
    Posts
    5,171
    Make -> Model
    That's not right: given the make of a car you do not necessarily know the model. The reverse may be true:
    Code:
    Model -> Make
    But that won't be true either if 2 cars makers create a model with the same name.

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