Q.

A model developed by Hammer and Mc Leod in 1981.

A. SDM
B. OODBM
C. DDM
D. RDM
Answer» A. SDM

Discussion

Akash Mishra
9 months ago

A semantic data model (SDM) is a high-level semantics-based database description and structuring formalism (database model) for databases. This database model is designed to capture more of the meaning of an application environment than is possible with contemporary database models.
0