Database Management System20785 marksThree-Schema Architecture and Data Independence
What is difference between logical data independence and physical data independence?
What is difference between logical data independence and physical data independence? [5]
The capacity to change the schema at one level of a database system without having to change the schema at the next higher level is called data independence. It is one of the major advantages of using a DBMS and is directly related to the three-schema architecture (External, Conceptual, and Inter...