The solution for two authors: SELECT pp.paper_id FROM papers_people pp, ( SELECT paper_id FROM papers_people WHERE person_id =1740 ) AS pp2 WHERE pp.paper_id = pp2.paper_id AND person_id = 18 Well, that was easy :) On Tue, 22 Dec 2009, Kenny Billiau wrote:

Hi,

let's say I've got a table with 'paper_id' and 'author_id'. Now given x author id's, give me all papers that have those x authors,

It's fairly easy for two authors, but that solution doesn't work for multiple authors :/

Kenny

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