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Chapter 14: Database Systems Exam Tests

Database Systems MCQs - Chapter 14

Introduction to RDBMS Quiz Questions and Answers PDF - 3

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The Quiz: We are often interested in superkeys for which no proper subset is a; "Introduction to RDBMS" App Download iOS & Android (Free) with answers superkey, superset key, primary key and unique key to learn online training courses. Study dbms keys quiz questions, download Amazon eBook (Free Sample) for CS major.

Introduction to RDBMS Questions & Answers PDF Download: MCQ Quiz 3

MCQ 11: We are often interested in superkeys for which no proper subset is a

A) Superset key
B) Superkey
C) Primary key
D) Unique key

MCQ 12: Minimal superkeys are called

A) Unique key
B) Superset key
C) Candidate key
D) Primary key

MCQ 13: A table is a collection of relationships, there is a close correspondence between the concept of

A) Tables and instances
B) Tables and Entries
C) Table and variables
D) Tables and relations

MCQ 14: The term that says values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation, is called

A) Constant Integrity constraint
B) Variable Integrity constraint
C) Referential Integrity constraint
D) Attribute Integrity constraint

MCQ 15: A relation, say r1, may include among its attributes the primary key of another relation, say r2. the r1 is also known as

A) Parent relation
B) Referenced relation
C) Referencing relation
D) Node relation

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