Relational Database Schemas MCQs Quiz Online PDF Book Download

Relational database schemas MCQs, relational database schemas quiz answers to learn data analytics online courses. Learn relational data model and database constraints multiple choice questions (MCQs), relational database schemas quiz questions and answers. Career assessment test on relational model constraints, relational model concepts, relational database schemas test prep for database administrator certification.

Practice relational data model and database constraints test MCQs: in a relation schema, each key of schema having more than one key is classified as, with choices candidate key, super key, simple key, and parallel key for online computer science degree. Prepare assessment test for scholarships, learning online relational database schemas quiz questions for competitive assessment in computer science major for DBA certification.

MCQ on Relational Database SchemasQuiz Book Download

MCQ: In a relation schema, each key of schema having more than one key is classified as

  1. candidate key
  2. super key
  3. simple key
  4. parallel key

A

MCQ: In data model schemas, constraints that are can not be expressed directly are classified as

  1. application based constraints
  2. semantic constraints
  3. business rules
  4. all of above

D

MCQ: In database schema, database snapshot is also called

  1. current set of entity
  2. current set of instances
  3. current set of entity
  4. current set of objects

B

MCQ: In relational database schemas, transition constraints are also known as

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

B

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

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

A