Relational Databases Quiz Questions and Answers 95 PDF Download

Learn relational databases quiz, online db test 95 for online courses, distance learning. Free db MCQs questions and answers to learn relational databases MCQs with answers. Practice MCQs to test knowledge on relational databases, aries algorithm in dbms, nested subqueries, selection operation in sql, view of data for best online computer science degree prep.

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Quiz on Relational Databases Quiz PDF Download Worksheet 95

Relational Databases Quiz

MCQ. Relational model hides low-level implementation details from

  1. Users
  2. Developers
  3. Both A and B
  4. System itself


ARIES Algorithm in DBMS Quiz

MCQ. Degree of durability in which transaction commits as soon as its written at primary and backup site is known to be

  1. One-safe
  2. Two-very-safe
  3. Two-safe
  4. Three-safe


Nested Subqueries Quiz

MCQ. For testing whether a subquery has duplicate tuples in its result, SQL includes a

  1. Comparison function
  2. Boolean Function
  3. Aggregate Function
  4. Induced function


Selection Operation in SQL Quiz

MCQ. File scans are algorithms for searching that is used to locate and retrieve records, fulfilling a

  1. Projection condition
  2. Selection condition
  3. Hashing condition
  4. Evaluation plan condition


View of Data Quiz

MCQ. At logical level a record can be described as a

  1. Block
  2. Type definition
  3. Segments
  4. Sequences