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Database Systems MCQs – Practice Test 7 (Chapter 10)

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Formal Relational Query Languages Quiz – Practice Test 7 PDF Download

MCQ 31: The project operation with certain attributes left out, returns its:

  1. Parametric relation
  2. Argument relation
  3. Dimensional relation
  4. Dynamic relation

MCQ 32: Commercial database systems use languages with extensive:

  1. Semantic sugar
  2. Dynamic sugar
  3. Syntactic sugar
  4. Static sugar

MCQ 33: A positional notation can be used for the reference of:

  1. Relation names
  2. Tuple names
  3. Indices
  4. Instances

MCQ 34: The operations that add expressive power to relational algebra, is known to be:

  1. Additional operations
  2. Embedded operations
  3. Basic operations
  4. Extended operations

MCQ 35: The operations with the ability to express queries that cannot be expressed by the basic relational-algebra operations, is known as:

  1. Compound relational-algebra
  2. Composite relational-algebra
  3. Embedded relational-algebra
  4. Extended relational-algebra

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