The next day, I wrote a few functions that increased and delete it, but I always found that Hibernate always found data first, then deleted, I didn't feel elegant enough. Unlike SQL statement That is directly to some of the conditions, don't say efficiency problems, I want to check how to delete it directly .. But I have written a few increasing deletions, I really let me find the feeling of ejb at the time, true Very comfortable. It is really interesting, continue to learn ...
....... to beundinue
