[wolfi1]

ORMs do have their use but you can easily screw things up. An anecdote from an university: their was a student administration system where students could themselves enroll to classes. simple enough job, one would guess. but there was a catch: at certain times, usually when more than one student logged in, the system predictably crashed.It turned out, that when a student logged in, a join over 13 tables was performed, even classes the student attended years ago where fetched at the login. These joins were clearly from misconfigured hibernate classes, took them some time to reduce the load on the system