Hi I am a newbie Hibernate user and I am trying to follow the Hibernate tutorial "The first Hibernate Application". However, instead of Maven I am using ANT and instead of HSQLDB I am using Oracle. My code is identical to the tutorial (except for oracle-specific configurations in hibernate.cfg.xml).

Help on this would be greatly appreciated. Thanks in advance!

I am getting the following error:

[java] Hibernate: select BOE_DEV.hibernate_sequence.nextval from dual
[java] Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not get next sequence value
[java] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
[java] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
[java] at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:119)
[java] at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:122)
[java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
[java] at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:56)
[java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
[java] at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:50)
[java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
[java] at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:563)
[java] at org.hibernate.impl.SessionImpl.save(SessionImpl.java:551)
[java] at org.hibernate.impl.SessionImpl.save(SessionImpl.java:547)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[java] at java.lang.reflect.Method.invoke(Method.java:592)
[java] at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:342)
[java] at $Proxy0.save(Unknown Source)
[java] at org.hibernate.tutorial.EventManager.createAndStoreEvent(Unknown Source)
[java] at org.hibernate.tutorial.EventManager.main(Unknown Source)
[java] Caused by: java.sql.SQLException: ORA-02289: sequence does not exist
[java] at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
[java] at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
[java] at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
[java] at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:745)
[java] at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:216)
[java] at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:810)
[java] at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1039)
[java] at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:850)
[java] at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1134)
[java] at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3339)
[java] at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3384)
[java] at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:98)
[java] ... 17 more

I quess you found it already but I didnt do a good deed today, so I will point out your error
java.sql.SQLException: ORA-02289: sequence does not exist

You should create the sequence before.

Try something like this
CREATE SEQUENCE hibernate_sequence START WITH 1 INCREMENT BY 1 NOCYCLE;

Thanks!

adding that sequence fixed the problem.