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Database Systems Practice Test 271

Relational Algebra Quiz PDF: Questions and Answers - 271

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Relational Algebra Questions and Answers PDF Download: Quiz 271

MCQ 1351: The relational-algebra operations can be grouped together into a

A) relational-algebra query
B) relational-algebra operation
C) relational-algebra expression
D) relational-algebra function

MCQ 1352: The practice of generalization is a simple inversion of

A) Inheritance
B) Dependency
C) Specialization
D) Relationships

MCQ 1353: In A4 search, if only one record is retrieved, the time cost calculated will be same as that for

A) A1
B) A2
C) A3
D) A5

MCQ 1354: A cross-tabulation table is different from

A) Relational tables
B) Irrelational tables
C) Query tables
D) Structured tables

MCQ 1355: Some implementations of SQL also allow us to test whether the result of a comparison is unknown, by the clauses

A) Is unknown
B) Unknown
C) Is not unknown
D) Both A and C

Database Systems Exam Prep Tests

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Relational Algebra App (Android & iOS)

Relational Algebra App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

DBMS App (Android & iOS)

DBMS App (Android & iOS)

Computer Networks App (Android & iOS)

Computer Networks App (Android & iOS)