Database Constraints and Relational Schemas MCQs Quiz Online PDF Download

Learn database constraints and relational schemas MCQs, DBMS test for online courses learning and test prep to practice. Relational data model and database constraints quiz has multiple choice questions (MCQ), database constraints and relational schemas quiz questions and answers to learn for online DBMS examples course test.

Database management system test MCQ on when primary key is null of new tuple then constraint violated is with options null integrity constraint, primary integrity constraint, secondary integrity constraint and entity integrity constraint problem solving skills for viva, competitive exam prep, interview questions with answer key. Free study guide is for online learning database constraints and relational schemas quiz with MCQs to practice test questions with answers.

MCQs on Database Constraints and Relational Schemas Quiz PDF 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