Hi!

Let´s first show the example:



It creates the column NAME on database.

But when i change the attribute name, (myname) a fictional example, it creates a new column.

I would like to change the attribute name (in java code, or with the anotation columnname ), and

change only the name of the column on database automatically, of course, with the same data.

Is that possible?

Thank You

The new hibernate user :)

No, at least not automatically.

As I'm informed Hibernate does't provide automatic schema migrations.
There exists property

hibernate.hbm2ddl.auto = update

but this is still experimental and not recommended for production use.

What you can do, is launching your hibernate with property:

hibernate.hbm2ddl.auto drop,create

This will erase and rebuild your schema on database, so the old column "name" dissapperas.
But obviously in this way you will lost all data.

Thank you for the answer.

In this way, i have to create each "version" of the system, a "ALTER TABLE" string, for each change on hibernate attribute names.

It would be nice if hibernate stores the attribute x column reference.

Thank you.