Database Constraints and Relational Schemas MCQs & Quiz Online PDF eBook Download

Database constraints and relational schemas multiple choice questions (MCQs), database constraints and relational schemas quiz answers for online computer science degree. Relational data model and database constraints MCQs, database constraints and relational schemas quiz questions and answers for BSc computer science. Learn database constraints and relational schemas test prep for software engineering online courses.

Learn relational data model and database constraints MCQ: when primary key is null of new tuple then constraint violated is, with choices null integrity constraint, primary integrity constraint, secondary integrity constraint, and entity integrity constraint for BSc computer science. Practice merit scholarships assessment test, online learning database constraints and relational schemas quiz questions for competitive exams in computer science major for software engineering online courses.

MCQs on Database Constraints and Relational Schemas PDF eBook Download

MCQ: When primary key is null of new tuple then constraint violated is

  1. null integrity constraint
  2. primary integrity constraint
  3. secondary integrity constraint
  4. entity integrity constraint

D

MCQ: Key which specifies that two different tuples cannot have same value is classified as

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

A

MCQ: Constraint violated when given value of attribute is not included in corresponding domain is

  1. domain constraint
  2. attribute constraint
  3. key constraint
  4. lock constraint

A

MCQ: If two or more constraints are violated by using insert operation then by default the

  1. insert is accepted
  2. insert is rejected
  3. insertion permanently blocked
  4. none of above

B

MCQ: Multi-valued dependencies and functional dependencies are classified as category of

  1. relation dependencies
  2. data dependencies
  3. entity dependencies
  4. attribute dependencies

B