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Download "SQL Data Types and Schemas Learning" App: A data structure that allows the database system to find tuples in the relation that have a specified value for the attribute, is known as; MCQ with answers: trees, array, stacking, and indexing. Learn SQL Concepts and Queries Questions and Answers, Apple iBook to download free chapter to study database systems.

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MCQ 2101: A data structure that allows the database system to find tuples in the relation that have a specified value for the attribute, is known as:

  1. Array
  2. Trees
  3. Indexing
  4. Stacking

MCQ 2102: When values for multiple dimensions are fixed, the operation of slicing can be known as:

  1. Rollup
  2. Rolldown
  3. Slicing
  4. Dicing

MCQ 2103: If a log force is required, the request is sent over to:

  1. Database writer process
  2. Lock manager processes
  3. Log writer process
  4. Log process

MCQ 2104: The Cartesian product of two relations r1 andr2 is represented as:

  1. r1 ^ r2
  2. r1 ? r2
  3. r1 & r2
  4. r1 % r2

MCQ 2105: Any attribute that is present in the having clause without being aggregated must appear in the:

  1. Group by clause
  2. Select clause
  3. Where clause
  4. Distinct clause

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