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Posted Date: 24 Apr 2009      Posted By:: Prasanth    Member Level: Silver    Points: 5 (Rs. 1)

2009 Osmania University B.Com Computer Science Database Management Systems Question paper



Course: B.Com Computer Science   University/board: Osmania University






I. Answer any five questions in not exceeding 20 lines each. 5 X 4=20 Marks

1. Database System Components.
2. Define object, relation with example.
3. What are DDL statements?
4. Indexed sequential file organization.
5. Advantages of distributed query processing.
6. Query processing.
7. Database recovery.
8. Strategic database planning.


II. Answer all questions in not exceeding 4 pages each.

9. (a). Define DBMS. Explain the advantages of DBMS over file oriented system.
Or
(b). List and describe each of the six steps in the database development life cycle.

10.(a). Explain how to transform a conceptual model into relational model.
Or
(b). Define normal forms and explain with example.

11.(a). Explain various database change operations with suitable examples.
Or
(b). Define a view with example. Explain different operations on a view.

12.(a). Explain the mapping logical data structures to physical data structures.
Or
(b). Explain the functions of database administrator.

13. (a) What do you know about evaluation models?
Or
(b) Explain any two methods of maintaining Data integrity in Distributed Database System.





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