Modification schema of oracle database in one level without affecting the schema in high level is called as _______
A. Data Migration
B. Data Isolation
C. Data Independence
D. Data Abstraction
Answer:A
Modification schema of oracle database in one level without affecting the schema in high level is called as _______
A. Data Migration B. Data Isolation C. Data Independence D. Data Abstraction
Explanation: Data Independence means changing internal level does not affect conceptual level.