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Q1. Describe Domain Integrity Constraint, Key Integrity Constraint, Entity Integrity Constraint and the Referential Integrity Constraint.

Q2. Design a generalization-specialization hierarchy for the motor-vehicle sales company. The company sells motorcycles, vans, passenger cars and buses. Validate your placement of attributes at every level of hierarchy. Describe why they must not be placed at a higher or lower level?

Q3. Distinguish between the given:

a) Simple (Atomic) and Composite Attributes.
b) Single-valued and multi-valued attributes.
c) Stored and Derived Attributes.

Q4. Describe the two-phase locking protocol? Describe strict and conservative two-phase locking protocol? Which of them is favored and describe why?

Q5. Describe why during system recovery from crash; the log records for transactions on the undo list should be processed in the backward direction and log records for transactions on redo list are processed in forward direction.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M911725

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