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MCQs on Modification of Database Quiz PDF Download

MCQ: SQL supports nested subqueries in where, and from clauses of an

  1. Outer query
  2. Inner query
  3. Outer tuple
  4. Inner tuple


MCQ: Performing all tests before performing any deletion is

  1. Important
  2. Optional
  3. Complex
  4. Irrational


MCQ: SQL supports basic set operations on relations that includes

  1. Union
  2. Intersect
  3. Except
  4. All of the above


MCQ: Scalar subqueries are also useful in SQL

  1. Insertion statements
  2. Deletion statement
  3. Update statements
  4. Retrieval statement


MCQ: SQL data-definition language is used to create relations with specified

  1. Schema
  2. Structure
  3. Domain
  4. Attributes