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Database Systems Practice Test 271

# Relational Algebra Quiz Questions with Answers PDF Download - 271

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The Relational Algebra Trivia Questions and Answers PDF (Relational Algebra Quiz Answers PDF e-Book) download Ch. 10-271 to solve Database Systems Practice Tests. Learn Formal Relational Query Languages MCQ Questions PDF, Relational Algebra Multiple Choice Questions (MCQ Quiz) for database administrator certification. The Relational Algebra Trivia App Download: Free learning app for set operations, crosstab queries, dbms: selection operation, generalization, relational algebra test prep for bachelor's degree in computer science.

The Trivia MCQ: The relational-algebra operations can be grouped together into a; "Relational Algebra" App (iOS & Android) with answers: Relational-algebra operation; Relational-algebra query; Relational-algebra expression; Relational-algebra function; for bachelor's degree in computer science. Study Formal Relational Query Languages Questions and Answers, Apple Book to download free sample for computer science programs.

## Relational Algebra Quiz with Answers : MCQs 271

MCQ 1351:

The relational-algebra operations can be grouped together into a

1. relational-algebra query
2. relational-algebra operation
3. relational-algebra expression
4. relational-algebra function
MCQ 1352:

The practice of generalization is a simple inversion of

1. Inheritance
2. Dependency
3. Specialization
4. Relationships
MCQ 1353:

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

1. A1
2. A2
3. A3
4. A5
MCQ 1354:

A cross-tabulation table is different from

1. Relational tables
2. Irrelational tables
3. Query tables
4. Structured tables
MCQ 1355:

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

1. Is unknown
2. Unknown
3. Is not unknown
4. Both A and C

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