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Database Systems MCQs: Chapter 15

Introduction to SQL Multiple Choice Questions (MCQ) PDF Download - 10

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The Introduction to SQL Multiple Choice Questions (MCQ Quiz) with Answers PDF (Introduction to SQL MCQ PDF e-Book) download Ch. 15-10 to learn Database Systems Course. Solve Set Operations Multiple Choice Questions (MCQs), Introduction to SQL quiz with answers PDF for online SQL certification courses. The Introduction to SQL MCQ App Download: Free Database Systems App to learn nested subqueries, aggregate functions career test for 2 year computer science degree.

The MCQs: The result of Boolean expression not unknown is "Introduction to SQL" App (Android, iOS) with answers: true, unknown, false, and null for online SQL certification courses. Practice View of Data Quiz Questions, download Apple Book (Free Sample) for computer and information science.

SAT Test for SAT Prep

Introduction to SQL MCQ with Answers PDF Download: Quiz 10

MCQ: 46

The result of Boolean expression not unknown is

  1. Unknown
  2. True
  3. False
  4. Null
MCQ: 47

The operation that outputs all tuples from its first input that do not occur in the second input, is said to be

  1. The Except Operation
  2. The Union Operation
  3. The Intersection all Operation
  4. The Intersection Operation
MCQ: 48

It is also possible to test for membership in an

  1. Arbitrary relation
  2. Irrational relation
  3. Unreasoned relation
  4. Autocratic relation
MCQ: 49

After groups have been formed, SQL applies predicates in the

  1. Like clause
  2. Select clause
  3. Define clause
  4. Having clause
MCQ: 50

According to the scoping rule, it is legal to use only correlation names defined in the

  1. Subquery itself
  2. Query that contains subquery
  3. Subquery of another query
  4. Both A and B

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