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Database Systems Exam Prep: Mock Test 68

Aggregate Functions Multiple Choice Questions (MCQs) PDF Download - 68

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The Aggregate Functions MCQ with Answers PDF (Aggregate Functions Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 15-68 to learn Database Systems Practice Tests. Learn Introduction to SQL Test PDF, Aggregate Functions Multiple Choice Questions (MCQ Quiz) for associates in computer science. The Aggregate Functions MCQs App Download: Free Database Systems MCQ App to learn database languages, java database connectivity (jdbc), types of storage structure, database authorization, aggregate functions test prep to study e-learning courses.

The MCQ: All aggregate operations, return a value of null when applied on an; "Aggregate Functions" App (Free Android & iOS) with answers: sum collection, avg collection, empty collection, and data collection for associates in computer science. Practice Introduction to SQL Questions and Answers, Google eBook to download free sample for information and communication technology.

Aggregate Functions MCQ Quiz with Answers PDF Download: Test 68

MCQ: 336

All aggregate operations, return a value of null when applied on an

  1. Avg collection
  2. Sum collection
  3. Data collection
  4. Empty collection
MCQ: 337

To grant a privilege with the grantor set to the current role associated with a session, we can add the clause

  1. granted by current-roll
  2. define by current-role
  3. select by current-role
  4. set by current-role
MCQ: 338

When a transaction is rolled back and entered at the aborted stage, the available system's options are of

  1. 2 types
  2. 3 types
  3. 4 types
  4. 5 types
MCQ: 339

For each attribute, the JDBC retrieve its

  1. Name
  2. Address
  3. Data type
  4. Both A and C
MCQ: 340

The authorization types can be assigned to users as

  1. All
  2. None
  3. Combinations
  4. All of the Above

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