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Database Constraints and Relational Schemas MCQ with Answers PDF

Practice Database Constraints and Relational Schemas Multiple Choice Questions (MCQ), database management system quiz answers PDF with live worksheets for online degrees. Solve relational data model and database constraints Multiple Choice Questions and Answers (MCQs), Database Constraints and Relational Schemas quiz questions for BSc computer science. Database Constraints and Relational Schemas MCQs PDF: relational database schemas, database constraints and relational schemas, relational model concepts 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. Solve database constraints and relational schemas quiz questions for merit scholarship test and certificate programs for software engineering online courses.

MCQs on Database Constraints and Relational Schemas Quiz


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

null integrity constraint
primary integrity constraint
secondary integrity constraint
entity integrity constraint


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

super key
simple key
parallel key
conceptual key


The constraint violated when the given value of attribute is not included in the corresponding domain is

domain constraint
attribute constraint
key constraint
lock constraint


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

insert is accepted
insert is rejected
insertion permanently blocked
none of above


The multi-valued dependencies and functional dependencies are classified as category of

relation dependencies
data dependencies
entity dependencies
attribute dependencies

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