Database is a collection of Data. Various database models are used. The database models having using a primary key is ______.
A. OODBMS
B. RDBMS
C. Network Database Model
D. Hierarchical Database Model
Answer:B
Database is a collection of Data. Various database models are used. The database models having using a primary key is ______.
A. OODBMS B. RDBMS C. Network Database Model D. Hierarchical Database Model