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Database Systems Competitive Exam MCQs – Practice Test 13 (Chapter 15)

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Free Introduction to SQL MCQs App Download: Attribute values for inserted tuples must be members of the corresponding; MCQ with answers: tuple's domain, attribute's domain, relation domain, and variable charter. Solve View of Data Quiz Questions, download Google e-Book (Free Chapter) to improve academic performance.

Introduction to SQL MCQs – Practice Test 13 PDF Download

MCQ 61: A variable-length string type with user-specified length, known as:

  1. float
  2. varchar
  3. char
  4. smallint

MCQ 62: The attribute values for inserted tuples must be members of the corresponding:

  1. Attribute's domain
  2. Tuple's domain
  3. Relation domain
  4. Variable charter

MCQ 63: To specify explicitly that duplicates are not removed, SQL allows to use the keyword:

  1. Whole
  2. Total
  3. All
  4. Complete

MCQ 64: Many database systems do not support:

  1. Dropping entire table
  2. Dropping of attributes
  3. Deleting table
  4. Deleting attributes

MCQ 65: The operands of the logical connectives can be expressions involving:

  1. Arithmetic operators
  2. Comparison operators
  3. Numeric operators
  4. Bound operators

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