Hibernate version: 2.1

Mapping documents:

Code between sessionFactory.openSession() and session.close():

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What's the best way to truncate a table in Hibernate?
I tried to do a

session.delete("from tableName")

to delete all rows but that doesn't seem to work.

By "tablename" do you mean the actual underlying table name? That's not the correct syntax; it should be session.delete("from MyClassName").

Note that this really does not truncate in the DB sense. It actually loads all the objects and then deletes them one-by-one.

If you really, truly want truncate semantics you'll have to do:

See documentation