first, is there any info about HQL in the NHibernate's Docs? I couldn't find it, am I looking in he wrong place? this is the site I'm cheking for help:

http://wiki.nhibernate.org/display/NH/Documentation

Now, for the question: I'm trying to use HQL for the first time. It seems pretty simple, but I tried this:

"FROM Users AS u WHERE u.email = :email and u.id != :id"

and it threw this Exception

"unexpected token: as [FROM Usuarios AS u WHERE u.email = :email and u.id != :id]"

so I removed the "AS", although Hibernate's Doc says it's optional. I tried it again, and the new exception says

"in expected: u [FROM Usuarios u WHERE u.email = :email and u.id != :id]"

So where's the error??

well things look right from here. have you tried replacing the "!=" with "<>" we are on the Microsoft Platform. i'm totally guessing here...

Never mind... the problem was between the keyboard and the chair... I wrote "Users" in stad of "User"...