Hello everybody, is my understanding correct that I cannot join two arbitrary Objects/Tables which don't "know" each other, i.e. neither one of them has a mapping to the other? Something which would look like this in SQL: select * from table1 t1, table2 t2 where t1.id=t2.id; When I try to do this in HQL from table1 t1 inner join table2 t2 where t1.id=t2.id; it throws an QuerySyntaxException: Path expected for join. According to http://forum.hibernate.org/viewtopic.php?t=969465&highlight=path+expe... http://forum.hibernate.org/viewtopic.php?t=964492&highlight=path+expe... this is indeed not possible but I've to explicitly ask. Thanks a lot, Timo