is there a specific way to write sql queries in entity beans in ejb spec 3 rather than normal sql query? i have defined namedquery as follow. @NamedQueries( {@NamedQuery(name = "Language.findByAgentCode", query = "SELECT l FROM Language l WHERE l.AgentCode = :agentcode")}) but when deploying following exception is thrown 2007-11-28 10:03:31,237 WARN [org.jboss.system.ServiceController] Problem starting service persistence.units:ear=sdb.ear,jar=sdb3.jar,unitName=Language javax.persistence.PersistenceException: org.hibernate.HibernateException: Errors in named queries: Language.findByAgentCode at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:720) at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:127) at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:246) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) pls help me to solve this problem View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4108294#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...