HibernateException « MySQL « JPA Q&A

1. org.hibernate.HibernateException in a basic program of Hibernate    stackoverflow.com

i am using MySQL workbench 5.2 CE database with a basic hibernate program at run time it give me error:

Caused by: org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver
this code in hibernate.cfg.xml: ...

2. org.hibernate.HibernateException in a basic hibernate program    stackoverflow.com

I get the following error session.save(student);

org.hibernate.HibernateException: The database returned no natively generated identity value
Here is main function
  Session session = HibernateUtil.getSessionFactory().openSession();
  Transaction transaction = null;

3. org.hibernate.HibernateException: The database returned no natively generated identity value    stackoverflow.com

I'm getting this exception from Hibernate

building session factory
13:32:09,937 INFO SessionFactoryObjectFactory:105 - Not binding factory to JNDI, no JNDI name configured
Exception in thread "main" org.hibernate.HibernateException: ...

4. org.hibernate.HibernateException: Missing column: (on an MySQL database)    coderanch.com

Hi, I was using my root username/password to access a MySQL database via Hibernate / Spring merrily until I made some changes to a couple of tables. I am now getting an exception right off the bet: "...Caused by: org.hibernate.HibernateException: Missing column: birth_day in demoDb.consumer at org.hibernate.mapping.Table.validateColumns(Table.java:254) at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:1089) at ....." The missing column is certainly there. I tried creating a ...