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Database Systems MCQs – Mock Test 385

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Free "OLAP and SQL Queries Quiz" App Download: Recursive SQL queries are used to express transitive closure which uses; MCQ with answers: non-recursive views, recursive views, general views, and domain views. Learn Advanced SQL Questions and Answers, Apple iBook to download free chapter for database skill development.

OLAP and SQL Queries Quiz – Mock Test 385 PDF Download

MCQ 1921: Recursive SQL queries are used to express transitive closure which uses:

  1. Recursive views
  2. Non-recursive views
  3. Domain views
  4. General views

MCQ 1922: Attributes of foreign keys are allowed to be null, provided that they have not been declared to be:

  1. Not null
  2. Like Null
  3. As Null
  4. Candidate key

MCQ 1923: When the business-logic layer is using an object oriented programming language, the data is modelled as:

  1. Instances
  2. Objects
  3. Entities
  4. View

MCQ 1924: SAN stands for:

  1. Small area network
  2. Storage area network
  3. System area network
  4. Scuzzy area network

MCQ 1925: The term that is used to provide fast access to data items, is known as:

  1. Data dictionary
  2. MetaData files
  3. Data files
  4. Indices

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