means OBJECT relational mapping, A SIMPLE answer is that you wrap your tables or stored procedures in classes in your programming language, so that instead of writing SQL statements to interact with your database, you use METHODS and properties of objects.

It's a library or framework that help you to map/convert your models in to tables in your database, It's like a mediator or an intermediate that avoid that you have to write SQL code and allows you to interact with the DB using a programming language like groovy without have to worry about write SQL code or what kind of database are you using, you can switch from mySql to Oracle DB modifying only 4 lines of code, an example of what is an ORM It's the Hibernate Framework.

means object relational mapping, A simple answer is that you wrap your tables or stored procedures in classes in your programming language, so that instead of writing SQL statements to interact with your database, you use methods and properties of objects.

It's a library or framework that help you to map/convert your models in to tables in your database, It's like a mediator or an intermediate that avoid that you have to write SQL code and allows you to interact with the DB using a programming language like groovy without have to worry about write SQL code or what kind of database are you using, you can switch from mySql to Oracle DB modifying only 4 lines of code, an example of what is an ORM It's the Hibernate Framework.