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Database Management System Practice Tests

Database Management System Online Tests

Relational Database Schemas Multiple Choice Questions (MCQ) PDF Download

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The MCQ: In a relation schema, each key of schema having more than one key is classified as; "Relational Database Schemas" App Download (Free) with answers candidate key, super key, simple key and parallel key to study DBA certification courses. Practice relational database schemas quiz questions, download Amazon eBook (Free Sample) for top computer science schools.

Relational Database Schemas MCQs: Questions and Answers PDF Download

MCQ 1: In a relation schema, each key of schema having more than one key is classified as

A) candidate key
B) super key
C) simple key
D) parallel key

MCQ 2: In the data model schemas, the constraints that are can not be expressed directly are classified as

A) application based constraints
B) semantic constraints
C) business rules
D) all of above

MCQ 3: In database schema, the database snapshot is also called

A) current set of entity
B) current set of instances
C) current set of entity
D) current set of objects

MCQ 4: In relational database schemas, the transition constraints are also known as

A) static constraints
B) dynamic constraints
C) implicit constraints
D) explicit constraints

MCQ 5: In relational database schemas, the state constraints are also known as

A) static constraints
B) dynamic constraints
C) implicit constraints
D) explicit constraints

Database Management System Practice Tests

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Relational Database Schemas App (Android & iOS)

Relational Database Schemas App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

Digital Logic Design App (Android & iOS)

Digital Logic Design App (Android & iOS)

Digital Image Processing App (Android & iOS)

Digital Image Processing App (Android & iOS)