Hello, Not specific to sqlite, but a rather generic SQL question...
Given a set of ids, what would be the proper way to find the records containing all those ids? Specifically, given a 'document_token' table containing a document_id mapping to multiple token_id, how would one find the document_id which contains all the given token_id? E.g.: create table if not exists document_token ( document_id integer not null, token_id integer not null ); insert into document_token( 1, 11 ); insert into document_token( 1, 12 ); insert into document_token( 2, 11 ); insert into document_token( 2, 12 ); insert into document_token( 3, 11 ); create temporary table if not exists stage ( id integer not null, ); insert into stage( 11 ); insert into stage( 12 ); Given an input of 11 and 12 as token_id in the 'stage' table, what would be the proper query to retrieve document_id 1 and 2 (but not 3 as it only contains token_id 11)? Simply joining the two tables will result in all the document_id being returned: select distinct document_id from stage join document_token on document_token.token_id = stage.id Thoughts? Thanks in advance. Kind regards, -- PA. http://alt.textdrive.com/nanoki/ _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users