What is persistence persist data to database or other storage a In Oo world, persistence means persist object to external storage Relational database SQL a Using SQL in Java a Persistence object-oriented applications: ORMWhat is Persistence ◼ Persist data to database or other storage. ❑ In OO world, persistence means persist object to external storage. ◼ Relational database ❑ SQL ❑ Using SQL in Java ❑ Persistence object-oriented applications: ORM