Question: A. Describe the concept of program-data independence in DBMS and traditional file processing in application program. Illustrate with an example of a DBMS program accessing

A. Describe the concept of program-data independence in DBMS and traditional file processing in application program. Illustrate with an example of a DBMS program accessing a data record.

B. Describe what the role of concurrency control in DBMS is. Support your answer with an example of transactions in a multiuser environment

C. Cite some examples of integrity constraints that you think can apply to the database shown in Figure 1.2. given in the textbook (the university example)

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