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1. Why foriegn keys, tables, rows mentioned?    forum.hibernate.org

I'm new to this whole O/R mapping world (not inexperienced in OO though: C++ since 1989 and Java since 1995) and I am a little surprised to see so much mention of foreign keys, joins, tables, rows etc. in the Hibernate world. I thought the idea of an O/R mapper was that you could go along on your merry OO modeling ...