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All Tags » db4o » aggregation max min sum count avg (RSS)
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Hello,
first i'll try to explain the situation:
let's say you have a list of lp's. Each lp has as a proprity ''label'' and a proprity ''genre''. Now i wanna get the 5 labels who have the most albums in the list, and i also want to know how many. And rhe same for the genre.
(in sql this would be done with count and group by, ...
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