Hibernate hbm2ddl.auto=update doesn’t update column definitions in MySQL

by

hibernate.hbm2ddl.auto" value="update won’t modify existing table column definitions. Doing some testing I found that:

hibernate.hbm2ddl.auto" value="update will add a db column that doesn’t already exist.

hibernate.hbm2ddl.auto" value="update will not delete a db column that is removed/no longer in your entity.

hibernate.hbm2ddl.auto" value="update will not modify a db column that has already been created.

You’ll need to backup the table data, drop it and restart your application to get that table’s schema back in sync with your entity. Then reload your data.

See:
Need clarity on hibernate.hbm2ddl.auto=update

and
Hibernate hbm2ddl.auto possible values and what they do?

More Related Contents:

  1. Hibernate hbm2ddl.auto, possible values, and what they do
  2. Hibernate: hbm2ddl.auto=update in production?
  3. Mapping many-to-many association table with extra column(s)
  4. How does JPA orphanRemoval=true differ from the ON DELETE CASCADE DML clause
  5. What is the difference between DAO and Repository patterns?
  6. How to use @Where in Hibernate
  7. How to query data for Primefaces dataTable using lazy loading and pagination
  8. Hibernate Search: How to use wildcards correctly?
  9. Hibernate: comparing current & previous record
  10. Performing Date/Time Math In HQL?
  11. Struggling to understand EntityManager proper use
  12. Hibernate throws org.hibernate.AnnotationException: No identifier specified for entity: com..domain.idea.MAE_MFEView
  13. Spring Boot & Spring Data: how are Hibernate Sessions managed?
  14. Hibernate – why use many-to-one to represent a one-to-one?
  15. Hibernate: How specify custom sequence generator class name using annotations?
  16. Deleted object would be re-saved by cascade (remove deleted object from associations)
  17. Hibernate ID Generator
  18. what is the right path to refer a jar file in jpa persistence.xml in a web app?
  19. JPA CriteriaBuilder – How to use “IN” comparison operator
  20. Setting properties programmatically in Hibernate
  21. How to turn off hbm2ddl?
  22. When to Use EntityManager.clear()?
  23. Hibernate unidirectional one to many association – why is a join table better?
  24. What is the right way to use spring MVC with Hibernate in DAO, service layer architecture
  25. Hibernate validator: @Email accepts ask@stackoverflow as valid?
  26. Persist java.time.Instant (JDK8) with JPA2/Hibernate
  27. Hibernate without Primary Key
  28. createEntityManager throws java.lang.NullPointerException at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.getStatus
  29. CDI injection in EntityListeners
  30. How to simulate NVL in HQL

Leave a Comment