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Just as an exersize - I can think of two ways of doing this in SQL: 1) in a single statement: update cus tu set rank = ( select count(*) from cus ts where tu.yr = ts.yr and tu.money <= ts.money ) which is not the best performer 2) if we are not fixed on doing it all in one statement, it can be done quite easy and efficiently. Without much detail and with a loose syntax: declare cursor C1 for select yr, money, rank from cus order by yr, money for update of rank open cursor C1 do while not EOF fetch C1 into :yr, :money, :rank <increment rank, taking account year changes> update set rank = :rank where current of C1 end close cursor C1 Alexei Pytel, speaking for myself
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