DBMS Keys MCQs Quiz Online PDF Book Download

Dbms keys multiple choice questions (MCQs), dbms keys quiz answers to learn database online courses. Introduction to rdbms MCQs, dbms keys quiz questions and answers for information technology programs online. Learn structure of relational model, schema diagrams, dbms keys test prep for big data certification.

Learn introduction to rdbms MCQ: a property of entire relation, rather than of individual tuples, is known as, with choices attribute, constant, variable, and key for information technology programs online. Practice merit scholarships assessment test, online learning dbms keys quiz questions for competitive exams in computer science major .

MCQs on DBMS Keys PDF Book Download

MCQ: A property of entire relation, rather than of individual tuples, is known as

  1. Attribute
  2. Constant
  3. Variable
  4. Key

D

MCQ: Address field of a person should not be part of primary key, since it is likely to

  1. Dependent
  2. Changed
  3. Not changed
  4. Too long

B

MCQ: Primary key should be chosen such that its attribute values are

  1. Updated
  2. Dependent
  3. Changed
  4. Never changed

D

MCQ: We are often interested in superkeys for which no proper subset is a

  1. Superset key
  2. Superkey
  3. Primary key
  4. Unique key

B

MCQ: Minimal superkeys are called

  1. Unique key
  2. Superset key
  3. Candidate key
  4. Primary key

C