Explanation:It specifies internal schema and also mapping between two schemas. 8. Which of the following is the process of selecting the data storage and data access characteristics of the database?
A. Logical database design
B. Physical database design
C. Testing and performance tuning
D. Evaluation and selecting
Answer:A
Explanation:It specifies internal schema and also mapping between two schemas. 8. Which of the following is the process of selecting the data storage and data access characteristics of the database?
A. Logical database design B. Physical database design C. Testing and performance tuning D. Evaluation and selecting
Explanation: Physical database design is the process of selecting the data storage and data access characteristics of the database. 9. Which of the following is the oldest database model?