Hibernate is object relational mapping so portability is very selling point that show the notion of database portability.It means an if a it user do the self to migrating from one database vendor to another, or we can in other words it mean it is framework or deployable application that consuming hibernate to
simultaneously target to multiple data base product by their user. The very easy idea or basic idea is that you want to hibernate to help run against any number of database without changes to your code, and it would be done without
mapping meta data.