Beliefs have consequences: "The way teens behave comes from something. Their attitudes and actions spring from their value system, and their value system is based on what they believe. Glen Schultz puts it this way: 'At the foundation of a person’s life
From the community documentation:
hibernate.hbm2ddl.auto Automatically validates or exports schema DDL to the database when the SessionFactory is created. With create-drop, the database schema will be dropped when the SessionFactory is closed explicitly.
e.g. validate | update | create | create-drop
So the list of possible options are,
validate: validate the schema, makes no changes to the database.
update: update the schema.
create: creates the schema, destroying previous data.
create-drop: drop the schema at the end of the session.