Download LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.C.A. DEGREE EXAMINATION – COMPUTER APPLICATIONS
THIRD SEMESTER – November 2009
CA 3800 - DATABASE MANAGEMENT CONCEPTS
Date & Time: 03/11/2009 / 9:00 - 12:00 Dept. No.
Max. : 100 Marks
PART – A
Answer ALL questions
1. Define entities.
(10 x 2 =20 )
2. What are the components used for representing E-R diagram?
3. Write a SQL command to display data in descending order.
4. Comment on TCL commands.
5. Define normalizations.
6. Draw the E-R diagram for Inventory application.
7. What are the steps involved in Query processing.
8. Define Equivalence.
9. What are the types of Transaction failure?
10. Write any two features of Oracle.
PART – B
Answer ALL questions
11. a) Write short notes on Relational database design with an example.
(5 x 8 =40 )
(or)
b) Explain the keys related to Entity set and Relationship set
12. a) Create the table with the following fields and values using the SQL statement – (1 mark).
O_Id
1
2
3
4
5
6
OrderDate
2008/11/12
2008/10/23
2008/09/02
2008/09/03
2008/08/30
2008/10/04
OrderPrice
1000
1600
700
300
2000
100
Customer
Hansen
Nilsen
Hansen
Hansen
Jensen
Nilsen
i) Find if any of the customers have a total order of less than 2000 – (2 marks)
ii) Delete the records having order price greater than 700 – (1 mark).
iii) Add a new column as customer no – (2 marks).
iv) Select the customers name equal to “Hansen” or “Nilsen” from the above table-(2 marks).
(or)
b) Explain First Normal Form in detail.
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13. a) Draw and explain the structure of a B+ tree.
(or)
b) Write short notes on the different types of Files in file organization.
14. a) Explain Query Evaluation plan in detail.
(or)
b) Discuss about Nested and Block Nested Loop join operations in query
processing.
15. a) Explain Lock based Protocol in detail.
(or)
b) Explain Shadow paging in detail.
PART – C
Answer any TWO questions
(2 x 20 =40 )
(Q.No. 16 is Compulsory)
16. a) List out components of E-R diagram and discuss the concept of Entity
Relationship diagram with an example.
b) Discuss in detail about BCNF.
17 a) Discuss the different levels of RAID.
b) Explain the Evaluation of expression in query processing.
18. Discuss in detail about prevention and handling of Dead lock.
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