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

Database constraints and relational schemas MCQs, database constraints and relational schemas quiz answers pdf to study DBMS online course. Learn relational data model and database constraints Multiple Choice Questions and Answers (MCQs), "database constraints and relational schemas" quiz questions and answers for BSc computer science. Learn relational data model & database constraints test prep for software engineering online courses.

"When the primary key is null of the new tuple then the constraint violated is" Multiple Choice Questions (MCQ) on database constraints and relational schemas 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 Book Download

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

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

D

MCQ: The key which specifies that two different tuples cannot have the same value is classified as

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

A

MCQ: The constraint violated when the given value of attribute is not included in the 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: The multi-valued dependencies and functional dependencies are classified as category of

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

B