a.   Write the similarities and differences in SQL implementation of an OO schema for a database application and the traditional database implementation (you can consider the UNIVERITY database as an example). [ Hints : You can explain, how to construct an EER schema for the application, and then create the corresponding classes in ODL. Specify a number of methods for each class, and then specify queries in OQL for your database application, etc..]

 

b.  What are advantages of using NoSQL database? Name some industries (five) who adopted the No SQL database environment. Explain the MongoDB data model with an example.

 

c.   Can we run query efficiently in MongoDB? Give an example.