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  • How to write a function that looks up values from a table within a range?

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    In the database I have a table for Users, and one table that is used as lookup. it holds scores and values. 

    10 5
    15 6
    20 7

    After form submission, on the Users table a value like 12 is persisted.
    What I need is, a function to get this value 12..Look it up on the table.. It falls in the range 10-14 which means it has a score of 5.
    I need to take this score and perform some calculations.
    What is the best way to do this ?

    public void Calculate ( long Id ) {
    //for that user id, get the value 12 using getters and check in the lookup table


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