title: Hibernate many to one delete : org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
body: <p>Keep am getting ConstraintViolationException while am executing this hibernate many to one delete query...</p>
  
  <p>Here is the program ...</p>
  
  <p><a href="http://www.java4s.com/hibernate/hibernate-many-to-one-mapping-delete-query-example/" rel="nofollow">http://www.java4s.com/hibernate/hibernate-many-to-one-mapping-delete-query-example/</a></p>
  
  <p>Not sure where am doing the mistake ?</p>