SQL Selecting multiple columns based on max value in one column

Question

OK so I have looked theough the other solutions an no help. So here is what I am trying to do. I need to select the row with multiple columns where the value in one column is th

Answer 1

select 
    t.* 
from 
    table t 
    inner join (
        select itemnumber, max(orderfileid) maxof
        from table
        group by itemnumber
    ) m on t.itemnumber = m.itemnumber 
            and t.orderfileid = m.maxof