I\'m trying to select items from an associative table that have satisfy two or more values of the same field, sounds confusing, let me explain.
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I don't have the time to provide the exact query right now, but try something like this:
select item_category.* from
item_category , item_category ic1, item_category ic2 where
ic1.category_id = 201 and
ic2.category_id = 202 and
ic1.item_id = ic2.item_id and
item_category.item_id = ic1.item_id and
item_category.item_id = ic2.item_id;
Maybe conditions are wrong but you can try something this way.