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http://www.developpez.net/forums/showthread.php?t=232950
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http://www.hibernate.org/hib_docs/ejb...ax/persistence/SequenceGenerator.html
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http://java.sun.com/javaee/downloads/index.jsp
Derby commande en ligne
http://db.apache.org/derby/papers/DerbyTut/ij_intro.html
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http://blogs.sun.com/alexismp/resource/EJB3demo.html