I have a problem with alter-table it does not work. Everytime if i use that it will be ignored or callback only Failure. Is there any solution. Background is for example to make the update process during development and work easier. I work Jboss 4.0.3 and MySQL 5.0. Thanks for answer. * @jboss.persistence * datasource = "java:jdbc/scm_data" * datasource-mapping = "mySQL" * create-table="false" * alter-table="true" * remove-table="true" View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972922#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...