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AD-402 · Database Management System/Unsolved PYQ Paper

DATABASE MANAGEMENT SYSTEM - NOV 2022 Question Paper

  1. Unit 1
    7 Marks
    aDifferentiate between DBMS and Traditional file storage system.
  2. Unit 1
    7 Marks
    bConstruct an E-R diagram for a hospital with set of patients and set of medical doctors. Associated with each patient a log of the various tests and examination conducted. Map your E-R diagram to relational model.
  3. Unit 2
    7 Marks
    aDifferentiate between data definition language and data manipulation language.
  4. Unit 2
    2 Marks
    iConsider the following schema for institute library: Student (Roll No, Name, Father-Name, Branch) Book (ISBN, Title, Author, Publisher) Issue (Roll No, ISBN, Date-of-Issue) Write the following queries in relational algebra: i) List Roll Number and Name of all students of the branch 'CSE'.
  5. Unit 2
    2 Marks
    iiConsider the following schema for institute library: Student (Roll No, Name, Father-Name, Branch) Book (ISBN, Title, Author, Publisher) Issue (Roll No, ISBN, Date-of-Issue) Write the following queries in relational algebra: ii) Find the name of students who have issued a book published by 'ABC' publisher.
  6. Unit 2
    2 Marks
    iiiConsider the following schema for institute library: Student (Roll No, Name, Father-Name, Branch) Book (ISBN, Title, Author, Publisher) Issue (Roll No, ISBN, Date-of-Issue) Write the following queries in relational algebra: iii) List title of all books and their author's issued by a student 'XYZ'.
  7. Unit 2
    1 Marks
    ivConsider the following schema for institute library: Student (Roll No, Name, Father-Name, Branch) Book (ISBN, Title, Author, Publisher) Issue (Roll No, ISBN, Date-of-Issue) Write the following queries in relational algebra: iv) List all books published by publisher 'ABC'.
  8. Unit 2
    7 Marks
    aExplain the terms: CANDIDATE KEY, PRIMARY KEY, SUPER KEY and COMPOSITE KEY.
  9. Unit 2
    7 Marks
    bWhat are the various characteristics of SQL? Discuss five aggregate functions with a suitable example.
  10. Unit 2
    7 Marks
    aDiscuss the selection, projection and join operator of relational algebra with suitable example.
  11. Unit 2
    7 Marks
    bDiscuss the various features of relational data model in detail.
  12. Unit 3
    7 Marks
    aWhat is Normalization of data? Explain 1NF, 2NF and 3NF with example.
  13. Unit 3
    7 Marks
    bDefine Functional dependency. What do you mean by Loss‑Less Decomposition? Explain with a suitable example how function dependencies can be used to show that decompositions are loss-less.
  14. Unit 1
    7 Marks
    aExplain Aggregation and Specialization with example.
  15. Unit 4
    7 Marks
    bState the condition for the two schedules to be equivalent. Define a serializabile schedule.
  16. Unit 4
    7 Marks
    aWhat is Transaction? Draw a state diagram of a transaction showing its states. Explain ACID properties of a transaction with suitable examples.
  17. Unit 4
    7 Marks
    bExplain in brief working of two-phase locking protocol. Explain with the help of example of a schedule, how this protocol ensures a schedule to be conflict serializable, but not cascade-less?
  18. Unit 5
    7 Marks
    aWhat is RAID in DBMS? Explain it with its types.
  19. Unit 5
    7 Marks
    bWhy the hashing techniques are required in DBMS? Explain any one of the technique with example.
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