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Database Management System MCQs – Practice Test 6 (Chapter 12)

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Free Relational Data Model and Database Constraints MCQ App Download (iOS & Android): Basic operations that can be performed on relations are; MCQ with answers: insertion, deletion, and modification. Practice Embedded & Dynamic SQL Quiz Questions, download Apple Book (Free Chapter) to develop system expertise.

Relational Data Model & Database Constraints MCQ – Practice Test 6 PDF Download

MCQ 26: When the foreign key refers to a tuple which does not exists in subjected relation then the constraint violated is:

  1. modify integrity
  2. referential integrity
  3. inferential integrity
  4. insert integrity

MCQ 27: The basic operations that can be performed on relations are:

  1. deletion
  2. insertion
  3. modification
  4. all of above

MCQ 28: In relational database schemas, the state constraints are also known as:

  1. static constraints
  2. dynamic constraints
  3. implicit constraints
  4. explicit constraints

MCQ 29: The tuples in relation are sensitive to:

  1. order
  2. format
  3. entity type
  4. concept type

MCQ 30: The state in which the database does not follow integrity constraints is classified as:

  1. parallel state
  2. invalid state
  3. valid state
  4. candidate state

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