Hi, does anyone know what the possible values are for the hibernate.hbm2ddl.auto property in persistence.xml? The Hibernate docs suggest validate | update | create | create-drop as examples, but it doesn't define their behavior, nor says whether these are all possible options. Also, what is the default value, i.e. which value is used when the property is not defined in persistence.xml? Thanks a lot, Georges View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167551#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...