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Database Systems Practice Test 271

Relational Algebra Quiz Questions with Answers PDF Download - 271

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Relational Algebra Quiz with Answers PDF Download: 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

Database Systems Exam Prep Tests

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Relational Algebra App (Android & iOS)

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DataBase Management System (MCS) App (Android & iOS)

DataBase Management System (MCS) App (iOS & Android)

Mechanics of Materials App (Android & iOS)

Mechanics of Materials App (Android & iOS)

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Technical Writing App (iOS & Android)