kevin cline wrote: > On Nov 19, 11:13 am, Christian Kerth <christian.ke... / dynamicmedia.at> > wrote: >> > book_id >> > But how do i query the book_title of a certain book??? > In your design, a book doesn't have a single title. It has a title > for each language. I know, this is just an example. But what is best practice to query attributes of a many to many relation? In that case the title of a certain book in a certain language. Thx Ck -- Posted via http://www.ruby-forum.com/.