Dave Blake wrote: > SELECT * FROM tablea > WHERE EXISTS (SELECT 1 FROM tableb WHERE tablea.id = tableb.id AND ...) > > is quicker than > SELECT * FROM tablea > WHERE tablea.id IN (SELECT tableb.id FROM tableb WHERE ...) > > Is there any reason for this to be always true in SQLite, or is it query > dependant?
I can imagine databases and queries where the second form would be faster. But does the difference even matter? Regards, Clemens _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
