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Database Systems Cerification Guide: Mock Test 23

Set Operations Notes Questions with Answers PDF Download - 23

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The Set Operations Notes Questions and Answers PDF (Set Operations Quiz Answers PDF e-Book) download Ch. 15-23 to study Database Systems Practice Tests. Learn Introduction to SQL MCQ Questions PDF, Set Operations Multiple Choice Questions (MCQ Quiz) for online information technology certification. The Database Systems Notes App Download: Free Set Operations App to study dbms design process, failure classification in dbms, set operations test prep to learn online certificate courses.

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Set Operations Quiz with Answers PDF Download: MCQs 23

MCQ: 111

The SQL set operations include

  1. Union
  2. Intersect
  3. Except
  4. All of the Above
MCQ: 112

The predicated that succeeds if the value on which it is applied is not null, is known to be

  1. Is Not Null
  2. Is Null
  3. Not Null
  4. Null
MCQ: 113

The error that causes loss of the data of volatile storage, and halts the transaction processing is known as

  1. System error
  2. Application error
  3. System crash
  4. Transaction error
MCQ: 114

Mapping of conceptual schema using the entity-relationship model into a relation schema, is achieved at the stage

  1. Physical-design phase
  2. Contextual-design phase
  3. Virtual-design phase
  4. Logical-design phase
MCQ: 115

Durability can be ensured in different

  1. 2 ways
  2. 3 ways
  3. 4 ways
  4. 5 ways

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